美国戴安Dionex IonPac AS21A Column 063071阴离子交换色谱柱

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产品名称: 美国戴安Dionex IonPac AS21A Column 063071阴离子交换色谱柱

产品型号: 063071

产品展商: 戴安Dionex

产品文档: 无相关文档

简单介绍

戴安公司生产的仪器主要有离子色谱仪、高效液相色谱仪、快速溶剂萃取仪和氨基酸直接分析仪。其中离子色谱仪凭借着雄厚的技术优势和方法已广泛地应用于各个领域，其市场占有率达80%。全球与离子色谱相关的文章有90%均出自戴安公司生产的离子色谱仪。　　戴安公司的快速溶剂萃取仪15分钟之内仅用15毫升溶剂既可完成对10g样品的萃取，该技术已在环境、**、食品和聚合物工业等领域得到广泛应用。

美国戴安Dionex IonPac AS21A Column 063071阴离子交换色谱柱 的详细介绍

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 Å) 11 µm (2 × 50 mm); microporous resin (<1 Å) 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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