Dionex IonPac AS7 阴离子交换柱 035393

Dionex IonPac AS7 阴离子交换柱

Thermo Scientific? Dionex? IonPac? AS7 阴离子交换柱可用于分离多种多价阴离子，包括多聚磷酸盐、多聚膦酸盐和其他多价络合剂，并提供可靠的分析结果。 该款色谱柱的独特聚合物填料在分离离子和极性化合物时性能卓越，可在中等反压条件下实现高速、高效和高载量。 不过，更新款的 Dionex IonPac AS16 色谱柱推荐用于测定多聚磷酸盐。

描述

多种基质中多价阴离子和螯合剂的分析

• 根据美国 EPA 方法 218.6 分析环境基质中的六价铬

• 使用柱后试剂和 UV 检测法分离复杂样品基质中的多价阴离子和螯合剂

• 利用安培检测器测定高离子强度基质中的氰化物、硫化物和碘化物

• 通常与柱后试剂配合用于光度检测

• 包含阴离子和阳离子交换能力

• 兼容多种淋洗液和检测器，以用于高灵敏度和选择性分析

提供多种规格，实现应用灵活性

• 4 x 250mm、2 x 250mm 分析柱

• 4 x 50m、2 x 50mm 保护柱

• 更长的 250 mm 柱，实现更复杂样品基质的更高分辨率分离

• 更小柱内径，提高质量灵敏度，节省洗脱液和试剂，并且降低运行成本

Dionex IonPac AS7 阴离子交换柱

订货信息：

For Separation of a Wide Range of Polyvalent Anions

The IonPac^? AS7 separates a wide variety of polyvalent anions, including polyphosphates, polyphosphonates, and other polyvalent complexing agents such as EDTA and NTA using acidic eluent (eliminating metal interferences) with postcolumn derivatization and UV-Vis detection.

• For polyvalent anions and chelating agents in complex sample matrices

• Determines cyanide and sulfide using amperometric detection

• Useful for hexavalent chromium in environmental matrices

The AS7 column has a unique polymer packing that provides superior performance for separating ionic and polar compounds. The patented packing offers high speed, high efficiency, and high loading capacity at moderate backpressures.

Note: The newer IonPac AS16 or AS20 column is recommended for polyphosphates.

Determination of polyphosphonate scale inhibitors using the IonPac AS7 4 mm column.

Chelating agents by UV detection with postcolumn ferric nitrate.

Determination of cyanide and sulfide using the IonPac AS7 2 mm column with amperometric detection and a disposable silver electrode.

Determination of hexavalent chromium using the IonPac AS7 column.

Determination of cyanide and sulfide in sodium hydroxide and wastewater samples using the IonPac AS7 column.

Product Data Sheets
	IonPac AS7 Anion Exchange Column Data Sheet
	IonPac AS7 Analytical Column Manual

Application Notes
	AN 295: Determination of Phytic Acid in Soybeans and Black Sesame Seeds
	AN 289: Evaluation of the USP Risedronate Sodium Assay
	AN: 268 Determination of Chelating Agents in Drinking Water and Wastewater Samples
	AN 80: Determination of Dissolved Hexavalent Chromium in Drinking Water, Groundwater and Industrial Waste Water Effluents by Ion Chromatography

Application Updates
	AU 144: Determination of Hexavalent Chromium in Drinking Water Using Ion Chromatography
	AU 107: Determination of Cyanide in Strongly Alkaline Solutions

Technical Notes
	TN 26: Determination of Cr(VI) in Water, Waste Water, and Solid Waste Extracts