食品中含油核磁分析检测方案(核磁共振)

智能文字提取功能测试中

The Business of Science OXFORDINSTRUMENTSWHAT NEXT?* liquid variable temperature option available NMQC Easier faster， moreaccurate quality assurance Next generation benchtop NMR， today. OXFORD 4NSIUMINTS MQC+ WHAT DOES THEMQC*，ANALYSER DO? The MQC analyser measures oil， water， fluorine and solidfat in a variety of samples and is typically used for qualityassurance and quality control. MQC" is available as threemodels： MQC*23， MQC 5 and MQCF. MQC*23 is used forsmaller samples and high sensitivity applications； for exampleit is used to measure small amounts of oil applied to artificialfibres and fabrics to enhance their properties. MQC*5 is usedfor large samples， typically agricultural products； for example，it measures the oil， and moisture content in oilseeds. This isimportant because in some regions the higher the oil content，the more valuable the crop which affects the revenue receivedby farmers for their harvest. MQCF is used to measurefluorine in toothpaste and minerals， for example. The MQC is a compact benchtop Nuclear MagneticResonance (NMR) analyser. With over 35 years' experiencein the benchtop NMR business， we understand that the mostimportant qualities of a lab analyser are ease of use， accuracy，reliability and serviceability. The MQC* has been designed tofully meet all these requirements. WHERE IS IT USED? Industry Applications Food Oil in snack foods， total fat in chocolate，fat in foodstuffs and Solid Fat Content (SFC) Agriculture Oil and moisture in oilseeds and their residues，oil in dried olive paste and oil in dried palm mesocarp Textile Spin finish on fibre， also known as Oil Pick-Up (OPU)，Finish on Yarn (FoY)， lubricant and avivage Consumerproducts Lotion on fabric and fluorine in toothpaste Petroleum Hydrogen content in fuel， oil content in waxes andwax content in petroleum products Polymers Xylene solubles in polypropylene， plasticiser in PVC， polymer density & crystallinity， oil in rubber and fluorine content Other ADVANTAGES OFBENCHTOP |NMR ANALYSIS The MQCbenchtop NMR analyser offers several importantadvantages over other laboratory analytical techniques： Accuracy NMR signals are generated from allparts of the sample not just the surface，even if they are opaque， guaranteeingmoreaccurate measurements. Easy to use MQC is designed to make the jobof technicians working in QA/QClabs easier. It simplifies the analysisprocess and removes the need forextensive operator training. Non-destructive NMR measurements do not damagethe sample in any way， so samples canbe kept for repeat measurements or tobe analysed using other techniques. Cost-efficient Low maintenance and running costs，just requires mains power. Minimal samplepreparation Simply transfer the sample into a tube，condition it then analyse it. Grinding orother forms of sample preparation arerarely needed. No hazardous solventsor chemicals involved The NMR method doesn't require solventsor other chemicals， removing the need forfume cabinets， specially trained staff andexpensive disposal procedures. Rapid analysis Analysis takes from a few minutes toa few seconds， which means you canprocess a high volume of samples inthe lab quickly and efficiently. WHY CHOOSE THEMQC* ANALYSER? Easy to use The single biggest benefit of MQC is that it isso easy to use. Lab technicians will be productivein no time as minimal training is required. The software provides step by step operator guidancewith clear on-screen prompts； there are also status indicatorlights at the sample chamber entrance. Operator promptscan be customised， and displayed in any language. MQC* can be fitted with a variety of robust sample holders，commonly known as probes， to easily handle differentapplications and sample sizes. The sample holders canbe changed easily in a matter of minutes. MQC"'s space saving internal PC uses Windows-basedsoftware， a flat screen monitor and a standard PCkeyboard. USB ports are provided for easy softwareupgrades and to allow data to be saved externally. Every MQC"system is supplied with all software，hardware and sampling accessories for the applicationit will be used for. Reliable and easy to maintain MQC has been designed with the minimal number ofcomponent parts， making it easy to set up and maintain.Advanced electronics enables the spectrometer's firmwareto be upgraded so the instrument can be kept up to datewith the latest improvements. It also incorporates advancedself diagnostic routines so that any faults can be quicklylocalised to save time and monev. The spectrometer continuously logs all diagnosticparameters in a database which means that it ispossible to monitor the history and health of theinstrument indefinitely. Diagnostics data can beaccessed either over the internet or saved to a fileand emailed to a service engineer. Low maintenance MQC is easy to look after： the PC fan filter is easilyaccessible for cleaning. The robust sample holders arealso easy to remove and all MQC*23 holders have openended bottoms for easy cleaning. MQChas an automaticmagnetic field optimisation routine， which ensures the bestresults whilst also reducing costs and increasing uptime asit means a service visit is not required. Easy to calibrate MQCmeasurements are generally insensitive to colour，particle size and other physical properties of the sample.Calibrations are always linear so you only need a handfulof samples. Once established， the calibrations are robustand rarely need to be repeated. Saves space Despite its small magnet size， MQC*23 has a large samplespace and high field strength， so it can be used to measurelarger samples as well as offering high sensitivity. Fast and efficient MQC*can make over 100 measurements a day，which isup to 250 times faster than using wet chemical analysis.Switching to MQC* will save you time and money thanksto its speed and efficiency. Aplatform for the future The MQC analyser builds on the success of itspredecessor by retaining many of its features，including reliable easy-to-use quality control software.However MQChas been designed with the potentialfor enhanced capability. It belongs to a new generationof magnetic resonance instruments incorporating a highperformance spectrometer. This means it will benefit fromfuture enhancements to the platform for years to come. OXFORD INSTRUMENTSSUPPORT'& 9SERVICE MQC users are often working in demanding， high pressureindustries where every minute counts. To make sure our usersget effective support when they need it， we have establisheda worldwide network of subsidiary companies and traineddistributors who are there to help you. As well as this network of local support， we also maintain a central emailand telephone support function which can often provide immediate answersto common questions. Using the advanced diagnostic and control features ofthe MQC， our engineers can log in directly to your MQC and even operateit remotely to assist with set-up questions or to diagnose faults. Choose the model OiServic、eQ OXFORDINSTRUMEN T S The Business of Science" We’re here to help you! OiService aims to keep your MQC"working as hard as you do. Our globalnetwork of service hubs provides a fullrange of technical support： Consumables and accessoriesRange of sample tubes and otheraccessories available. Extended warrantiesAvoid unplanned costs. Online diagnostics In-depth support over the internet. Maintenance contracts Ensures your analyser produces the right result every time. RepairsFast and efficient turnaround. Telephone help-desksFor a fast response to your problem. Training OXFORD Understand your analyserand its features. MQC+ The Business ofScience" We’re very proud of MQC and believe it delivers the ease of use，accuracy， reliability and serviceability that you are looking for. The MQC* works much faster than wet chemical analysis methods， enables you to measurea larger number of samples and is non-destructive. The analyser is easy to set up and maintain， simple to calibrate and won’t take up much roomin the lab. We believe it will prove to be an exceptional asset for any laboratory requiring easy，fast， accurate measurement of fat， oil， water and fluorine in a wide range of samples. Want to put MQC to the test? Contact one of our experts in analysis and request a demo. MORE INFORMATION Contact one of our experts at： www.oxford-instruments.com/mqcor you can email us at mqc@oxinst.com Pulsar： high resolutionbenchtop NMRspectrometer Pulsar 仪器检测法是牛津仪器与英国诺维奇食品研究所（IFR）联合开发的。这种甘油三酯分析是通过分析油脂样品的高分辨60 MHz 核磁共振谱实现的；所用油脂样品为液体形式，或者是从食品样品中经氯仿提取而来。对大多数样品而言，包括样品制备在内的总测定时间通常不超过 5 分钟，对于油脂含量很低的样品可能需要一个小时。