泼尼莫司汀

产品名称：OC Temporary Flow仪器厂商：HACH/美国 哈希价格：面议库存：是产品描述产品货号MOTOR,RUSTRACK,220 VOLT,50 HZ4748Mounting Bracket, Transensor 7960/96017478Mounting Clip Gasket, Ultrasonic Level3883MOUNTING FLANGE,LEVEL RAIN GAUGE2167Mounting Pin, Ultrasonic9539NEOPRENE,12 IN X 12 IN. X 1/16 IN.3370NOSE CONE,TRANSDUCER1738Nut, Spring, Bracket Ultrasonic3109NUT,1/4-40,BLACK,BLIND DRESS16307NUT,SAMPLE FITTING,14281429NUT,SELF SEALING,5/16-242766NUT,SELF SEALING,6-322732O-RING 910 FLOW METER4912O-RING,0144808O-RING,2654807O-RING,5.75 IN. ID X .1254863O-RING,BULKHEAD FITTING AS568-0142740O-RING,FRONT COVER2593O-RING,MAIN SEAL FLOW METER2542OPTION,HEATER KIT16412

Product Description： Silonite™ Male Micro-QT™ Valve to 3/8” C FittingThe MQT-600S is a Silonite™ Male Micro-QT™ Valve to 3?8” compression fitting designed for air and gas sampling, laboratory gas line inlets, and more. See complete applications list below. For the uncoated equivalent of this valve simply remove the “S” from the part number. The Micro-QT is a next generation gas valve offering uncompromised leak-tight performance in an ergonomic design. The Micro-QT is also versatile, providing numerous connection options to cover a wide range of applications. After the Micro-QT valve is installed on tubing with a compression fitting, mating male and female valve ends is literally just a “snap”. Originally designed for environmental air sampling and analysis, the Micro-QT has found a place in numerous other applications. Micro-QT’s feature a distinctively bright and colorful Silonite™ coating that prevents gas phase compounds from interacting with the metal surface. The rugged, solid design stands up to thousands of connections while maintaining leak-tight operation. For scientists and professionals working with VOC and SVOCs, the Micro-QT’s compact internal volume reduces exposure to potentially contaminated surfaces and allows for easy cleaning. Entech Micro-QT & standard Micro Valves FeaturesFast ConnectionsZero WeldsLight and Compact DesignInexpensiveLow Inclusion VolumeAutomation FriendlyEasily CleanedClear Connection IndicationPopular ApplicationsLaboratory Gas LinesInstrument InletsSampling EquipmentCanister Field SamplingHeadspace Vials and ChambersGas Manifold Connections

产品特点： Silonite Coated FittingsEntech stocks a wide variety of Silonite coated fittings.订购信息：DESCRIPTIONPART #UNITUnions：1/16” Silonite Union37-01010EA1/8” Silonite Union37-02010EA1/4” Silonite Union37-04010EAMale Connectors：1/16”–1/8” Silonite NPT Connector37-01002EA1/8”–1/8” Silonite NPT Connector37-02030EA1/4”–1/8” Silonite NPT Connector37-04030EAReducing Unions：1/16”–1/8” Silonite Reducing Union37-01020EA1/16”–1/4” Silonite Reducing Union37-01040EA1/8”–1/4” Silonite Reducing Union37-02040EAReducers：1/4” Fitting – 1/16” Tube, Silonite Reducer37-01140EA1/4” Fitting – 1/8” Tube, Silonite Reducer37-02140EA1/4” Fitting –1/4” Tube, Silonite Reducer37-04140EATees：1/16” Silonite Tee37-01310EA1/8” Silonite Tee37-02310EA1/4” Silonite Tee37-04310EAElbows：1/4” Silonite Elbow37-04020EACrosses：1/4” Silonite Cross37-04410EAValco Fittings：1/16” Silonite ZDV Bulkhead Union37-01200EA1/16” Silonite ZDV Union37-01210EA1/16”–1/8” Silonite ZDV Reducing Bulkhead Union37-01250EA1/16” Silonite Tee37-01350EA

Product Description：Silonite™ Male Cross Valve FittingThe Micro-QT™ Valve is designed exclusively for “through the valve” sampling . This valve is optimized for volatile or even light semivolatile compounds when performing rapid sampling. Like the Micro-QT2™ Valve below, the Micro-QT™ Valve is compatible with all existing Entech sampling devices by simply adding a female QT to ?” adapter (PN 30-22800). The Micro-QT2™ Valve is a two-piece valve that can be removed in the field to draw in a sample “around the valve” without requiring a separate sampling device. This allows recovery of the heavier semivolatile compounds that might otherwise condense in the valve on the way into the canister. The ability to sample around the valve is unique to the Micro-QT2™ valve design. This valve can also be sampled “through the valve” using a Restricted or Time Integrated Sampler.The HDS Micro-QT2™ Valve is a two-piece valve that can be removed in the field to perform time integrated sampling from hours to weeks without requiring a separate sampling device.

产品特点： Silonite Coated TubingSilonite greatly improves the chemical inertness of stainless steel tubing. Combining the durability of stainless steel with the inertness of a non-reactive ceramic coating creates the perfect solution for real world chemical applications.Unlike other coatings on the market, Silonite provides the most consistent,high-density barrier available. Silonite’s consistency ensures chemicals never reach reactive metal oxides on interior tubing walls. The smooth coating layer provides an even, laminar flow, creating a lower pressure drop and discourages deposition of high molecular weight contaminants. This helps to maintain a clean flow path and preserve Silonite’s inert, non-adsorptive properties within the tubing.Silonite tubing can be further deactivated in a proprietary process which results in an incredibly thin, low-bleed coating. Our deactivated Silonite tubing provides the best inertness for chromatography applications. Polar and reactive compounds show even better GC injection proles with reduced tailing during analysis.Features● Silonite Coating Inert and durable ceramic surface prevents interaction with reactive metal oxides on tubing walls.● Resists Cracking Silonite is flexible enough to handle mild bending.● Even Better Recovery Including reactive organic compounds containing oxygen, nitrogen, sulfur and phosphorous.● Ultra-Smooth Surface Reduces internal surface area and porosity.● Superior Quality Assurance Batch tested for inertness.● Handles a Wide Temperature Range -200°C to 450°CApplications● GC Transfer Lines● Sample Loops● Chemical Analyzers● GC Inlet Systems (P&T, Headspace, Thermal Desorption)● Sulfur Compound Analysis订购信息：Silonite Deactivated TubingDESCRIPTIONPART #UNIT1/32" x 0.02”Silonite Tubing (Deactivated)15-87020DFT.1/16” x 0.02” Silonite Tubing (Deactivated)15-87120DFT.1/16” x 0.04” Silonite Tubing (Deactivated)15-87140DFT.1/8” x 0.085” Silonite Tubing (Deactivated)15-87280DFT.1/4” x 0.21” Silonite Tubing (Deactivated)15-87421DFT.

Product Description：Silonite™ Male Tee Valve FittingThe Micro-QT™ Valve is designed exclusively for “through the valve” sampling . This valve is optimized for volatile or even light semivolatile compounds when performing rapid sampling. Like the Micro-QT2™ Valve below, the Micro-QT™ Valve is compatible with all existing Entech sampling devices by simply adding a female QT to 1/4” adapter (PN 30-22800).The Micro-QT2™ Valve is a two-piece valve that can be removed in the field to draw in a sample “around the valve” without requiring a separate sampling device. This allows recovery of the heavier semivolatile compounds that might otherwise condense in the valve on the way into the canister. The ability to sample around the valve is unique to the Micro-QT2™ valve design. This valve can also be sampled “through the valve” using a Restricted or Time Integrated Sampler.The HDS Micro-QT2™ Valve is a two-piece valve that can be removed in the field to perform time integrated sampling from hours to weeks without requiring a separate sampling device.

Product Description： Silonite™ Female Micro-QT Valve to 1/16″ Compression Fitting The FQT-100S, is a Silonite™ Female Micro-QT™ Valve to /” Compression Fitting designed for air and gas sampling, laboratory gas line inlets, and more. See complete applications list below. For the uncoated equivalent of this valve simply remove the “S” from the part number. The Micro-QT is a next generation gas valve offering uncompromised leak-tight performance in an ergonomic design. The Micro-QT is also versatile, providing numerous connection options to cover a wide range of applications. After the Micro-QT valve is installed on tubing with a compression fitting, mating male and female valve ends is literally just a “snap”. Originally designed for environmental air sampling and analysis, the Micro-QT has found a place in numerous other applications. Micro-QT’s feature a distinctively bright and colorful Silonite™ coating that prevents gas phase compounds from interacting with the metal surface. The rugged, solid design stands up to thousands of connections while maintaining leak-tight operation. For scientists and professionals working with VOC and SVOCs, the Micro-QT’s compact internal volume reduces exposure to potentially contaminated surfaces and allows for easy cleaning. Entech Micro-QT & standard Micro Valves FeaturesFast ConnectionsZero WeldsLight and Compact DesignInexpensiveLow Inclusion VolumeAutomation FriendlyEasily CleanedClear Connection IndicationPopular ApplicationsLaboratory Gas LinesInstrument InletsSampling EquipmentCanister Field SamplingHeadspace Vials and ChambersGas Manifold Connections

Poly-pro self-aspirating雾化器 Poly-pro self-aspirating nebulizer with external 1/4-28 threaded connector

产品特点： Silonite® Coated TubingSilonite® greatly improves the chemical inertness of stainless steel tubing.Combining the durability of stainless steel with the inertness of a non-reactive ceramic coating creates the perfect solution for real world chemical applications. Unlike other coatings on the market, Silonite® provides the most consistent,high-density barrier available. Silonite® ’s consistency ensures chemicals never reach reactive metal oxides on interior tubing walls. The smooth coating layer provides an even, laminar flow, creating a lower pressure drop and discourages deposition of high molecular weight contaminants. This helps to maintain a clean flow path and preserve Silonite® ’s inert, non-adsorptive properties within the tubing. Silonite® tubing can be further deactivated in a proprietary process which results in an incredibly thin, low-bleed coating. Our deactivated Silonite® tubing provides the best inertness for chromatography applications. Polar and reactive compounds show even better GC injection proles with reduced tailing during analysis. Features● Silonite® Coating Inert and durable ceramic surface prevents interaction with reactive metal oxides on tubing walls.● Resists Cracking Silonite® is flexible enough to handle mild bending.● Even Better Recovery Including reactive organic compounds containing oxygen, nitrogen, sulfur and phosphorous.● Ultra-Smooth Surface Reduces internal surface area and porosity.● Superior Quality Assurance Batch tested for inertness.● Handles a Wide Temperature Range -200°C to 450°C Applications● GC Transfer Lines● Sample Loops● Chemical Analyzers● GC Inlet Systems (P&T, Headspace, Thermal Desorption)● Sulfur Compound Analysis订购信息：Silonite® Coated Tubing描述货号单位1/32 ” x 0.02”15-87020FT.1/32 ” x 0.02” Deactivated15-87020DFT.1/16 ” x 0.02”15-87120FT.1/16 ” x 0.02” Deactivated15-87120DFT.1/16 ” x 0.04”15-87140FT.1/16 ” x 0.04” Deactivated15-87140DFT.1/8 ” x 0.085”15-87280FT.1/8 ” x 0.085” Deactivated15-87280DFT.1/4 ” x 0.21”15-87421FT.1/4 ” x 0.21” Deactivated15-87421DFT.

Restek 瑞思泰康 接头 Siltek Fittings 1/8" Port Connector Swagelok# SS-201-PC

Restek 瑞思泰康 接头 Siltek Fittings 1/4" Port Connector Swagelok# SS-401-PC

Product Description： Silonite Female Micro-QT Valve to 1/8 Compression The FQT-200S, is a Silonite™ Female Micro-QT™ Valve to 1/8” Compression Fitting designed for air and gas sampling, laboratory gas line inlets, and more. See complete applications list below. For the uncoated equivalent of this valve simply remove the “S” from the part number. The Micro-QT is a next generation gas valve offering uncompromised leak-tight performance in an ergonomic design. The Micro-QT is also versatile, providing numerous connection options to cover a wide range of applications. After the Micro-QT valve is installed on tubing with a compression fitting, mating male and female valve ends is literally just a “snap”. Originally designed for environmental air sampling and analysis, the Micro-QT has found a place in numerous other applications. Micro-QT’s feature a distinctively bright and colorful Silonite™ coating that prevents gas phase compounds from interacting with the metal surface. The rugged, solid design stands up to thousands of connections while maintaining leak-tight operation. For scientists and professionals working with VOC and SVOCs, the Micro-QT’s compact internal volume reduces exposure to potentially contaminated surfaces and allows for easy cleaning. Entech Micro-QT & standard Micro Valves FeaturesFast ConnectionsZero WeldsLight and Compact DesignInexpensiveLow Inclusion VolumeAutomation FriendlyEasily CleanedClear Connection IndicationPopular ApplicationsLaboratory Gas LinesInstrument InletsSampling EquipmentCanister Field SamplingHeadspace Vials and ChambersGas Manifold Connections

抗反膜：Anti-Reflection Coatings高反膜： High-Reflection Dielectric Mirror Coatings空间反射介质莫： Partial Reflecting Dielectric Coatings波长分离/结合膜： Wavelength Separating/Combining Coatings热/金膜： Hot/Cold mirrors金属膜： Metallic Coatings硬碳膜： Hard Carbon Coating (DLC: "Diamond-like Coating")太阳光盲区膜： Solar-Blind Coating 相关产品链接1.phasics高精度波前分析仪2.光学斩波器3.光束质量分析仪4.光电探测器5.激光功率能量计 6.激光波长计7.光谱仪8.单色仪/分光仪 9.红外激光观测仪与防护10.CCD相机和镜头

The OmniPac® PAX-500 column is a macroporous, low-capacity, solvent-compatible column designed to separate anionic and neutral species in a single run. This column combines both anion-exchange and polymeric reversed-phase retention mechanisms in a single column.Good for the simultaneous separation of neutral and anionic speciesUnique selectivity for polar and ionic organic analytesEffective for biological samples such as purines, pyrimidines, and vitaminsGood for drugs and pharmaceuticalsThe multimode separation mechanism of the OmniPac PAX-500 is achieved by coating a macroporous, hydrophobic core for reversed-phase retention, with an anion-exchange latex bead layer for anion-exchange retention. The macroporous structure provides an accessible hydrophobic core where reversed-phase retention occurs. The anion-exchange selectivity is provided by an anion-exchange MicroBead™ latex that coats the hydrophobic core. Since the anion-exchange layer is identical to that of the OmniPac PAX-100, the two columns exhibit similar ion-exchange selectivity. As a result, the OmniPac PAX-100 canbe used to develop the ion-exchange separation and the method can then be transferred to the OmniPac PAX-500 for refinement to include the reversed-phase separation. The OmniPac PAX-500 column is 100% solvent compatible and should always be run with at least 1% organic solvent in the mobile phase to maintain column life.The OmniPac PAX-500 may be used for the separation of compounds such as alcohols, alkanolamines, antihistamines, anti-inflammatory agents, aromatic acids, inorganic acids, peptides, purines and pyrimidines, sulfonamides, sulfonated anionic surfactants, and water-soluble vitamins.OmniPac PAX-500 Multimode Column SpecificationsDimensionsOmniPac PAX-500 Analytical Column:4 × 250 mmOmniPac PAX-500 Guard Column:4 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Recommended operating temperatureAmbientTypical operating conditions1.0 mL/min with at least 1% organic solventRecommended flow rate: 1.0 mL/minMobile phase compatibility100% compatible with common organic solvents.Recommended eluents: solvent for reversed-phase, anion, such as Cl– or OH– for anion-exchange.Resin composition8.5-μm-diameter ethylvinylbenzene/divinylbenzene macroporous substrate (55% cross-linked) agglomerated with 60-nm MicroBead alkanolquaternary amine-functionalized latex (4% cross-linked).Anion-exchange capacityApproximately 40 μeq/column (4 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded ferrule-style end fittings.All components are nonmetallic.Analytical ColumnsOmniPac PAX-500 Analytical Column (4 x 250 mm)042152Guard ColumnsOmniPac PAX-500 Guard Column (4 x 50 mm)042153

The OmniPac® PAX-500 column is a macroporous, low-capacity, solvent-compatible column designed to separate anionic and neutral species in a single run. This column combines both anion-exchange and polymeric reversed-phase retention mechanisms in a single column.Good for the simultaneous separation of neutral and anionic speciesUnique selectivity for polar and ionic organic analytesEffective for biological samples such as purines, pyrimidines, and vitaminsGood for drugs and pharmaceuticalsThe multimode separation mechanism of the OmniPac PAX-500 is achieved by coating a macroporous, hydrophobic core for reversed-phase retention, with an anion-exchange latex bead layer for anion-exchange retention. The macroporous structure provides an accessible hydrophobic core where reversed-phase retention occurs. The anion-exchange selectivity is provided by an anion-exchange MicroBead™ latex that coats the hydrophobic core. Since the anion-exchange layer is identical to that of the OmniPac PAX-100, the two columns exhibit similar ion-exchange selectivity. As a result, the OmniPac PAX-100 canbe used to develop the ion-exchange separation and the method can then be transferred to the OmniPac PAX-500 for refinement to include the reversed-phase separation. The OmniPac PAX-500 column is 100% solvent compatible and should always be run with at least 1% organic solvent in the mobile phase to maintain column life.The OmniPac PAX-500 may be used for the separation of compounds such as alcohols, alkanolamines, antihistamines, anti-inflammatory agents, aromatic acids, inorganic acids, peptides, purines and pyrimidines, sulfonamides, sulfonated anionic surfactants, and water-soluble vitamins.OmniPac PAX-500 Multimode Column SpecificationsDimensionsOmniPac PAX-500 Analytical Column:4 × 250 mmOmniPac PAX-500 Guard Column:4 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Recommended operating temperatureAmbientTypical operating conditions1.0 mL/min with at least 1% organic solventRecommended flow rate: 1.0 mL/minMobile phase compatibility100% compatible with common organic solvents.Recommended eluents: solvent for reversed-phase, anion, such as Cl– or OH– for anion-exchange.Resin composition8.5-μm-diameter ethylvinylbenzene/divinylbenzene macroporous substrate (55% cross-linked) agglomerated with 60-nm MicroBead alkanolquaternary amine-functionalized latex (4% cross-linked).Anion-exchange capacityApproximately 40 μeq/column (4 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded ferrule-style end fittings.All components are nonmetallic.Analytical ColumnsOmniPac PAX-500 Analytical Column (4 x 250 mm)042152Guard ColumnsOmniPac PAX-500 Guard Column (4 x 50 mm)042153

Product Description： Silonite™ Male Micro-QT™ Valve to 1/4” Connector LongThe MQT-400LS is a Silonite™ Male Micro-QT™ Valve Long – to 1/4” Compression Fitting Recommended for 2.7, 3.2 & 6L Canisters designed for air and gas sampling, laboratory gas line inlets, and more. See complete applications list below. For the uncoated equivalent of this valve simply remove the “S” from the part number. The Micro-QT is a next generation gas valve offering uncompromised leak-tight performance in an ergonomic design. The Micro-QT is also versatile, providing numerous connection options to cover a wide range of applications. After the Micro-QT valve is installed on tubing with a compression fitting, mating male and female valve ends is literally just a “snap”. Originally designed for environmental air sampling and analysis, the Micro-QT has found a place in numerous other applications. Micro-QT’s feature a distinctively bright and colorful Silonite™ coating that prevents gas phase compounds from interacting with the metal surface. The rugged, solid design stands up to thousands of connections while maintaining leak-tight operation. For scientists and professionals working with VOC and SVOCs, the Micro-QT’s compact internal volume reduces exposure to potentially contaminated surfaces and allows for easy cleaning. Entech Micro-QT & standard Micro Valves Features Fast ConnectionsZero WeldsLight and Compact DesignInexpensiveLow Inclusion VolumeAutomation FriendlyEasily CleanedClear Connection IndicationPopular ApplicationsLaboratory Gas LinesInstrument InletsSampling EquipmentCanister Field SamplingHeadspace Vials and ChambersGas Manifold Connections

1/8″ Silonite TeeSKU: 37-02310Entech stocks a wide variety of Silonite coated fittings. We can also coat custom fittings upon request.NOTE: Nuts are not coated since they do not come in contact with a sample path. Ferrules are also not coated since Silonite coating would make the surface harder, resulting in variances in sealing characteristics. Additional InformationWeight1 lbsUnitEA

Silonite Coated Thermo Finnigan Split/Splitless FocuslinerSKU: 37-44030Silonite Coated Thermo Finnigan Split/Splitless Focusliner 105 x 8mm, 5mm IDAdditional InformationWeight1 lbsDiameter/Length105 x 8mm, 5mmUnitEA

OmniPac PCX-500 Mixed-Mode ColumnThe OmniPac® PCX-500 column is a macroporous, high-capacity, solvent-compatible column designed to separate cationic and neutral species in a single run. This column combines cation-exchange and polymeric reversed-phase retention mechanisms in a single column.Good for the simultaneous separation of neutral and cationic speciesAcid and base compatible, pH 0–14100% solvent compatibleNot as effective as the CS12A for inorganic cationsThemultimode separation mechanism is achieved by coating a macroporous hydrophobic core for reversed-phase retention with a cation-exchange latex bead layer for cation-exchange retention. The macroporous structure provides an accessible hydrophobic core where reversed-phase retention occurs. The cation-exchange selectivity is provided by a cation-exchange MicroBead™ layer that coats the hydrophobic core. Since the cation-exchange layer is identical to that of the OmniPac PCX-100, the two columns exhibit similar ion-exchange selectivity. As a result, the OmniPac PXC-100 can be used to develop the ion-exchange separation, and the method can then be transferred to the OmniPac PXC-500 for further refinement to include solvent for the reversed-phase separation. The OmniPac PCX-500 is 100% solvent compatible and should always be run with at least 1% organic solvent in the mobile phase to maintain column life.The OmniPac PCX-500 may be used for the separation of compounds such as adrenergics, alcohols, anilines, antidepressants, anti-inflammatory agents, plating bath brighteners, cephalosporins, stains and dyes, herbicides, nucleotides and nucleosides, peptides, sulfonamides, and water-soluble vitamins.OmniPac PCX-500 Mixed-Mode Column SpecificationsDimensionsOmniPac PCX-500 Analytical Column:4 × 250 mmOmniPac PCX-500 Guard Column:4 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Recommended operating temperatureAmbientTypical operating conditions1.0 mL/min with at least 1% organic solventRecommended flow rate: 1.0 mL/minMobile phase compatibility100% compatible with common organic solvents. Recommended eluents: 1% solvent. Acid to maintain weak bases in the cationic form, salt (e.g., Na+ for cation exchange).Resin composition8.5-μm-diameter ethylvinylbenzene/divinylbenzene macroporous substrate (55% cross-linked) agglomerated with 200-nm MicroBead sulfonic acid-functionalized latex (5% cross-linked).Anion-exchange capacity120 μeq/column (4 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. Analytical ColumnsOmniPac PCX-500 Analytical Column (4 x 250 mm)042191Guard ColumnsOmniPac PCX-500 Guard Column (4 x 50 mm)042195

配件编号：119650-0422产品名称：Heater Lens产品规格：119650-0422仪器厂商：ThermoFisher/热电价格：面议库存：是配件编号：840-172400产品名称：Smart NIR Integrating Sphere for Nicolet FTIR适用于美国热电公司（Thermo Fisher Scientific） 仪器配件。配件编号：119650-0423产品名称：Lens 3 Ion Source产品规格：119650-0423仪器厂商：ThermoFisher/热电价格：面议库存：是

配件编号：AA26572产品名称：FITTING,STR,D3/5-M5,BRASS NI产品规格：AA26572仪器厂商：ThermoFisher/热电价格：面议库存：是配件编号：A036120产品名称：FITTING,BANJO,D3/5-M5,LT NI产品规格：A036120仪器厂商：ThermoFisher/热电价格：面议库存：是配件编号：A039279产品名称：O-RING,D132X3,N70产品规格：A039279仪器厂商：ThermoFisher/热电价格：面议库存：是

CDS Empore Chelating 螯合物固相萃取膜片 Empore 固相萃取盘片更适合于大体积水样的检测，它具有以下特点，是同传统SPE小柱无法媲美的：盘片上吸附剂的分布非常均一超低溶出，适合质谱检测PTFE的骨架，保证化学惰性动力学高效率（高流速不会影响回收率） 订货信息： CDS Empore Chelating (螯合物) 固相萃取膜片货号规格包装/片98-0604-0238-92271 Empore Chelating Disk， 47mm6098-0604-0238-9EA2271 Empore Chelating Disk，47mm20

OmniPac PCX-500 Mixed-Mode ColumnThe OmniPac® PCX-500 column is a macroporous, high-capacity, solvent-compatible column designed to separate cationic and neutral species in a single run. This column combines cation-exchange and polymeric reversed-phase retention mechanisms in a single column.Good for the simultaneous separation of neutral and cationic speciesAcid and base compatible, pH 0–14100% solvent compatibleNot as effective as the CS12A for inorganic cationsThemultimode separation mechanism is achieved by coating a macroporous hydrophobic core for reversed-phase retention with a cation-exchange latex bead layer for cation-exchange retention. The macroporous structure provides an accessible hydrophobic core where reversed-phase retention occurs. The cation-exchange selectivity is provided by a cation-exchange MicroBead™ layer that coats the hydrophobic core. Since the cation-exchange layer is identical to that of the OmniPac PCX-100, the two columns exhibit similar ion-exchange selectivity. As a result, the OmniPac PXC-100 can be used to develop the ion-exchange separation, and the method can then be transferred to the OmniPac PXC-500 for further refinement to include solvent for the reversed-phase separation. The OmniPac PCX-500 is 100% solvent compatible and should always be run with at least 1% organic solvent in the mobile phase to maintain column life.The OmniPac PCX-500 may be used for the separation of compounds such as adrenergics, alcohols, anilines, antidepressants, anti-inflammatory agents, plating bath brighteners, cephalosporins, stains and dyes, herbicides, nucleotides and nucleosides, peptides, sulfonamides, and water-soluble vitamins.OmniPac PCX-500 Mixed-Mode Column SpecificationsDimensionsOmniPac PCX-500 Analytical Column:4 × 250 mmOmniPac PCX-500 Guard Column:4 × 50 mmMaximum operating pressure4000 psi (27.9 MPa)Recommended operating temperatureAmbientTypical operating conditions1.0 mL/min with at least 1% organic solventRecommended flow rate: 1.0 mL/minMobile phase compatibility100% compatible with common organic solvents. Recommended eluents: 1% solvent. Acid to maintain weak bases in the cationic form, salt (e.g., Na+ for cation exchange).Resin composition8.5-μm-diameter ethylvinylbenzene/divinylbenzene macroporous substrate (55% cross-linked) agglomerated with 200-nm MicroBead sulfonic acid-functionalized latex (5% cross-linked).Anion-exchange capacity120 μeq/column (4 × 250 mm analytical column)Column constructionPEEK with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. Analytical ColumnsOmniPac PCX-500 Analytical Column (4 x 250 mm)042191Guard ColumnsOmniPac PCX-500 Guard Column (4 x 50 mm)042195

Tydex公司专业订制生产THz光学镜片，可以提供太赫兹专用离轴抛物镜、滤波片、偏振片、窗片、透镜、棱镜、波片、分束片、反射镜和菲涅尔透镜等，同时还提供太赫兹衰减器、太赫兹宽带相位变换器。 太赫兹这增透镀膜 THz AR CoatingsDownload THz AR Coatings Datasheet (PDF, 64 KB)As it is known THz transmittance of crystalline materials is not high (transmittance of HRFZ-Si is only ~54% and of THz-grade crystal quartz is ~70%) due to high reflection losses. However, reflection losses can be reduced by THz AR coating. We offer polyethylene and parylene coatings. We have developed polyethylene coating technology for plane surface. Polyethylene coatings are applied for windows only. The coated windows are mounted for easy handling. Parylene coating technology for plane surfaces is well known in microelectronics. We have improved it to achieve coating on optical surfaces (plane as well as spherical ones). So parylene coatings are used for windows as well as for lenses. AR coating wavelength range is specified by customer. It' s possible to make AR coatings for ranges within the wide interval from 60 &mu m to 1300 &mu m. The following AR coatings are offered:1. Two-sided AR coating It is used for windows and meniscus lenses. Currently AR coatings centered at the following ranges are developed: - polyethylene coatings - 60-80 &mu m, 110-160 &mu m, 160-220 &mu m, 320-430 &mu m, 375-510 &mu m, 480-650 & mu m, 535-725 &mu m, 645-870 &mu m, 695-940 &mu m, and 965-1305 &mu m - parylene coating 99-125 &mu m. HRFZ-Si can be coated by polyethylene as well as by parylene while crystal quartz - by parylene only. Due to AR coating transmittance is &ge 90% within any range mentioned above. Examples of transmission curves of polyethylene coated and uncoated HRFZ-Si windows as well as parylene coated and uncoated crystal quartz windows are shown below. Fig. 1. Transmission of uncoated and two-sided polyethylene coated HRFZ-Si windows. AR coating is centered at 160-220 &mu m.Fig. 2. Transmission of uncoated and two-sided parylene coated crystal quartz windows. AR coating is centered at 99-125 &mu m.2. One-sided AR coating Usually it is applied for hemispherical lenses. Plane lens surface is not coated since the lens is used as photoconductive antenna in THz TDS setup or in superconductive bolometer. Currently AR coating centered at the range of 99 um to 125 um is developed for some specific applications. AR coating increases transmittance of the hemispherical lens by 30 %. Since it' s enough difficult to measure transmission of hemispherical lens due to its shape we have simulated transmission curves of AR coated and uncoated lenses (please see them below). Fig.3. Simulated transmission of uncoated and one-sided (spherical surface) parylene coated hemispherical lenses. AR coating is centered at 99-125 &mu m. Experimental results achieved by one of our customers confirmed increasing of transmission due to AR coating. The gain in power in his instruments while using one-side coated hyper-hemispherical lens was about 30-50% at 111 um. As you see transmittance of uncoated HRFZ-Si hemispherical lens is 6 % only. It is connected with the effect of total internal reflection. The angle of total internal reflection is about 17 deg. Due to high refractive index of silicon and lens geometry major part of penetrated into the lens THz radiation is reflected from plane lens surface-air interface. Therefore clear aperture of the hemispherical lens is 40% only. Polyethylene AR coatings as well as parylene ones centered at wavelength ranges differing from mentioned above are in progress.筱晓（上海）光子技术有限公司Micro photons (Shanghai)Technology Co., LTDEmail：info@microphotons.com上海总部:电话：021－64149583地址：上海市闵行区春都路358弄27号楼504，201108

3M Empore Chelating螯合固相萃取膜片 Empore 固相萃取盘片更适合于大体积水样的检测，它具有以下特点，是同传统SPE小柱无法媲美的：盘片上吸附剂的分布非常均一超低溶出，适合质谱检测PTFE的骨架，保证化学惰性动力学高效率（高流速不会影响回收率） 订货信息：3M Empore Chelating 固相萃取盘片(螯合物)产品编号产品描述固定相描述应用包装2271Chelating 47mm双醋酸亚胺钠盐键合SDB铀,重金属等分析60片/盒( 20片/包x3包)

Restek 瑞思泰康 接头 Fitting CGA 350 Nickel Plated Brass 1/4"NPT Hydrogen

产品特点：OV-351 (Polyglycol-Nitroterephthalic), 10 gramsSKU: 1058 Categories: GC Stationary Phases, OV-Stationary Phases, Standard OV-Stationary Phases描述：● Polyglycol-Nitroterephthalic● Recommended solvents for OV-351: Dichloromethane, chloroform● Viscosity: Solid● Maximum operating temperature: 350℃● McReynold’s Constants: Benzene: 335 Butanol: 552 2-Pentanone: 382 Nitropropane: 583 Pyridine: 540

第一支进入欧洲药典的国产色谱柱 Venusil MP C18Venusil MP C18 色谱柱专门用于分析亲水性化合物，由于它采用硅胶表面的双层处理专利技术，在硅胶表面多了一层保护，从而降低了硅胶表面的活性，键合的更加均匀，更加适用水溶性化合物的测定。Venusil MP C18 柱以卓越的品质，良好的重现性和耐受性以及对强极性化合物的特异选择性，成为众多色谱分析中的佼佼者。2009 欧洲药典将Venusil MP C18柱列入药典方法，应用于泼尼松龙（Prednisolone）的检测，成功将主要成分Prednisolone 与其它三个杂质完全分离，完全满足欧洲药典对泼尼松原料药及制剂的质量控制要求。注：此名称仅在国外使用，国内统一命名为Venusil MP C18。色谱条件：色谱柱：Venusil MP C18，4.6×150 mm，3 μm，100 ?，4.6×150 mm；流动相：A：水；B：乙腈: 甲醇（50:50,V/V） 流 速：1 mL/min 柱 温：40 ℃ 检测波长：254 nm梯度条件：时间(min)流动相A (V%)流动相B (V%)0-14604014-2060 → 2040 → 8020-252080

Restek 瑞思泰康 接头 Fitting CGA 580 Nickel Plated Brass 1/4"NPT Inert Gas

Restek 瑞思泰康 接头 Fitting CGA 590 Nickel Plated Brass 1/4"NPT Air