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Dionex IonPac AS7 Column 阴离子交换填充柱简要描述：

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%。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、药物、食品和聚合物工业等领域得到广泛应用。

型号	美国戴安 P/N: 035394

Thermo Scientific DionexIonPac AS7 Specialty Anion-Exchange ColumnFor Separation of a Wide Range of Polyvalent Anions

The IonPacAS7 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 matricesDetermines cyanide and sulfide using amperometric detectionUseful 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.

IonPac AS7 Anion-Exchange Column Specifications
Maximum operating pressure	4000 psi (26 MPa)
phase compatibility	pH 0–14
Column construction	PEEKwith internal style 10-32 threaded ferrule-style end fittings.All components are nonmetallic.
Substrate characteristics	Particle Diameter: 10 mCross-Linking (%DVB): 2%
Latex characteristics	Functional Group: Alkyl quaternary ammoniumLatex Cross-Linking: 5%Latex Diameter: 530 nmCapacity (eq/column): 100 eq (4 x 250 mm) and 25 eq (2 x 250 mm) Hydrophobicity: Medium-high
Analytical column dimensions	IonPacAS7 Column: 4x250 and 2 x 250 mm
Guard column dimensions	IonPac AG7 Column: 4x50 and 2 x 50mm

Analytical Columns
IonPac AS7 Analytical Column (4 x 250 mm)	035393
IonPac AS7 Analytical Column (2 x 250 mm)	063097

Guard Columns
IonPac AG7 Guard Column (4 x 50 mm)	035394
IonPac AG7 Guard Column (2 x 50 mm)	063099

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