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.