TN62: Reducing Carbonate Interference in Anion Determinations with the Carbonate Removal Device (CRD): Perchlorate in Drinking Water

Instrument Type: IC

Carbonate can interfere with accurate quantification of adjoining anions, such as perchlorate and sulfate. Perchlorate is a highly regulated contaminate because of the health risks to pregnant women, prenatal and developing children. Here we show the efficient removal of the carbonate peak from a synthetic high ionic water sample using the Dionex CRD 200 device. In this example, the high ionic water matrix contains: 5 ppb perchlorate in a Sunnyvale drinking water sample.

AN1136: Determination of Perchlorate in Drinking Water using a Microbore Reagent Free Ion Chromatography System (Part C)

Instrument Type: IC

This Application Note expands the scope of the EPA Method 314.0 to the 2-mm column format. It evaluates and describes the linear range and initial demonstration of capability. Initial demonstration of capability includes determination of method accuracy, precision, detection limit (MDL), and matrix conductivity threshold (MCT). This document also describes perchlorate recovery in field samples. Overall, the results presented here meet or exceed the performance requirements specified in U.S. EPA Method 314.0. (This part has an one-click workflow for ICS5000 and AS-DV Autosampler).

AU148: Determination of Perchlorate in Drinking Water Using a Reagent-Free Ion Chromatography System (Part B)

Instrument Type: IC

This Application Update updates the EPA Method 314.0 for perchlorate determination in drinking water with an improved suppressor, the Dionex™ AERS 500 suppressor. The Dionex AERS 500 suppressor is a superior suppressor as it provides high capacity, low noise, high backpressure resilience, and fast startup. Moreover, the AERS 500 suppressor minimizes peak dispersion and improves peak efficiency. This document evaluates and describes the linear range and initial demonstration of capability (EPA Method 314.0, Section 9.2). (This part has a one-click workflow using ICS5000 and AS-DV autosampler).

AU148: Determination of Perchlorate in Drinking Water Using a Reagent-Free Ion Chromatography System (Part A)

Instrument Type: IC

This Application Update updates the EPA Method 314.0 for perchlorate determination in drinking water with an improved suppressor, the Dionex™ AERS 500 suppressor. The Dionex AERS 500 suppressor is a superior suppressor as it provides high capacity, low noise, high backpressure resilience, and fast startup. Moreover, the AERS 500 suppressor minimizes peak dispersion and improves peak efficiency. This document evaluates and describes the linear range and initial demonstration of capability (EPA Method 314.0, Section 9.2). (This part has a one-click workflow using ICS2100 and AS-AP autosampler).