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Dionex IonPac AS7 Column 阴离子交换填充柱简要描述:
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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 |
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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 |
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IonPac AS7 Analytical Column (4 x 250 mm) | 035393 |
IonPac AS7 Analytical Column (2 x 250 mm) | 063097 |
Guard Columns |
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IonPac AG7 Guard Column (4 x 50 mm) | 035394 |
IonPac AG7 Guard Column (2 x 50 mm) | 063099 |
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