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Dionex IonPac AS21 陰離子交換柱 063009

更新時間：2019-11-20

簡要描述：

Dionex IonPac AS21 陰離子交換柱 063009
柱的容量和選擇性使快速分析高氯酸鹽在低μg/L濃度。

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Dionex IonPac AS21 陰離子交換柱 063009

當(dāng)你需要快速分離飲用水中高氯酸鹽與質(zhì)譜檢測之前，Thermo Scientific? Dionex IonPac AS21氫氧化物選擇性陰離子交換柱柱的選擇。本專欄是具體列出在美國環(huán)保局的方法331。柱的容量和選擇性使快速分析高氯酸鹽在低μg/L濃度。此外，該2x250毫米列格式設(shè)計和LC-MS和LC-MS/MS兼容性方便使用如jia胺揮發(fā)性流動相優(yōu)化

 

Dionex IonPac AS21 陰離子交換柱 063009

訂貨信息：

Dionex IonPac AS21 陰離子交換柱

分析柱
IonPac AS21 Analytical Column (2 x 250 mm)63009
保護(hù)柱
IonPac AG21 Guard Column (2 x 50 mm)63071

 

 

 

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.

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