Product code 63009
Overal raiting

IonPac AS21

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The AS21 hydroxide-selective anion-exchange column is specifically designed for determination of trace perchlorate in drinking water prior to MS/MS detection. The capacity and selectivity enable fast analysis of perchlorate at low μg/L concentrations. The AS21 is the specified column in US EPA Method 331.0.

  • Fast separation of perchlorate prior to MS/MS detection
  • Optimized for methylamine or hydroxide mobile phases
  • Specified column for US EPA Method 331.0
  • Optimum capacity: 45 μeq per column (2 × 250 mm)
  • Operates at ambient or elevated temperatures
  • Compatible with organic solvents

The AS21 2 × 250 mm column format was specifically developed for MS/MS compatibility to allow use of volatile mobile phases such as methylamine.

Specification Compare to others

Dionex 2000
IonPac AS21 0.0 - 14.0
Anion-Exchange 3000 / 207
Quaternary ammonium N/A
2.0 N/A
250 N/A
7.0 N/A

Similar columns

Vendor Brand Mode Modif. Int. diam. Lenght Particles Pores   Price, EUR
Dionex IonPac AS24 AX Quaternary ammonium 2 mm 250 mm 7.0 µm 2000 Å No price

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