Anions in Drinking Water Using the Eco IC

The entry-level ion chromatograph, Eco IC, is designed for routine water analysis. Fully equipped with a conductivity detector, the instrument can be run either with or without chemical suppression.

In this article, the Metrosep A Supp 17 - 150/4.0 column is used to determine the anion content in drinking water. This type of column is ideal for water analysis at ambient temperatures.

 

Results

Anion Conc. [mg/L]
1 Fluoride n.q.
2 Chloride 7.57
3 System peak (carbonate) n.d.
4 Nitrate 4.06
5 Sulfate 33.1

 

Sample

Drinking water

Sample Preparation

Metrohm Inline Ultrafiltration

Columns

. .
Metrosep A Supp 17 - 150/4.0 6.01032.420
Metrosep A Supp 17 Guard/4.0 6.01032.500

 

Solutions

Eluent 5.0 mmol/L sodium Carbonate;
0.2 mmol/L sodium hydrogen carbonate
Suppressor regenerant 100 mmol/L sulfuric acid
Rinsing solution Stream

 

Analysis

Conductivity detection after chemical suppression

Instrumentation

Eco IC 2.925.0020
863 Compact IC Autosampler 2.863.0010
IC equipment: Inline Ultrafiltration 6.5330.110

 

Parameters

Flow rate 0.6 mL/minutes
Injection volume 10 µL
Pmax 18 MPa
Recording time 20 minutes
Column temperature Ambient

 

This information has been sourced, reviewed and adapted from materials provided by Metrohm AG.

For more information on this source, please visit Metrohm AG.

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