Dionex IonPac AS7 Column 阴离子交换填充柱

Dionex IonPac AS7 Column 阴离子交换填充柱



型号 美国戴安 P/N: 035393

Thermo Scientific Dionex

IonPac AS7 Specialty Anion-Exchange Column

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.

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

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