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Dionex IonPac AS7 Column 陰離子交換填充柱簡要描述：

戴安公司生產(chǎn)的儀器主要有離子色譜儀、高效液相色譜儀、快速溶劑萃取儀和氨基酸直接分析儀。其中離子色譜儀憑借著雄厚的技術優(yōu)勢和方法已廣泛地應用于各個領域，其市場占有率達80%。與離子色譜相關的文章有90%均出自戴安公司生產(chǎn)的離子色譜儀。 　　戴安公司的快速溶劑萃取儀15分鐘之內僅用15毫升溶劑既可完成對10g樣品的萃取，該技術已在環(huán)境、藥物、食品和聚合物工業(yè)等領域得到廣泛應用。

型號	美國戴安 P/N: 063097

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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