IonPac AS21氢氧化物选择性阴离子交换柱

IonPac AS21氢氧化物选择性阴离子交换柱

品牌戴安

货号 63071 价格 面议

产品介绍

IonPac AS21 Hydroxide-Selective Anion-Exchange Column

For Fast Analysis of Trace Perchlorate in Drinking Water Prior to Detection with MS/MS

The AS21 hydroxide-selective anion-exchange column is specifically designed for determination of trace perchlorate in drinking water prior to MS/MS detection. The capacity and selectivity enable fast analysis of perchlorate at low μg/L concentrations. The AS21 is the specified column in US EPA Method 331.0.

  • Fast separation of perchlorate prior to MS/MS detection

  • Optimized for methylamine or hydroxide mobile phases

  • Specified column for US EPA Method 331.0

  • Optimum capacity: 45 μeq per column (2 × 250 mm)

  • Operates at ambient or elevated temperatures

  • Compatible with organic solvents

The AS21 2 × 250 mm column format was specifically developed for MS/MS compatibility to allow use of volatile mobile phases such as methylamine.

IonPac AS21 Anion-Exchange Column Specifications
Dimensions:IonPac AS21 Analytical Column:
2 × 250 mm
IonPac AG21 Guard Column:
2 × 50 mm
Maximum Operating Pressure:3000 psi
Mobile Phase Compatibility:pH 0–14; 0–100% HPLC solvents
Substrate Characteristics:Bead Diameter and Pore Size:
7 μm (2 × 250 mm); super macroporous resin (2000 ?)
11 μm (2 × 50 mm); microporous resin (<1 ?)
Crosslinking (%DVB): 55%
Ion Exchange Group:Functional Group: Alkanol quaternary ammonium ion
Functional Group Characteristics:Ultralow Hydrophobicity
Capacity:45 μeq (2 × 250-mm analytical column)
1.5 μeq* (2 × 50-mm guard column)
*Guards are packed with a low-capacity microporous resin.
Column Construction:PEEK with 10–32 threaded ferrule style end fittings.
All components are nonmetallic.
Analytical Columns
IonPac AS21 Analytical Column (2 x 250 mm)063009
Guard Columns
IonPac AG21 Guard Column (2 x 50 mm)063071


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