The IonPac AS20 round pillar from Dionex is a hydroxide-selective anion-exchange round pillar designed for the determination of trace concentrations of perchlorate in drinking water.

The IonPac AS20 round pillar from Dionex is a hydroxide-selective anion-exchange round pillar designed for the determination of trace concentrations of perchlorate in drinking water, surface water, and estate water matrices. According to the company, perchlorate can be quantified at submicrogram-per-liter

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