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Standard Test Methods for Trace Anions in High Purity Water by Ion Chromatography
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 01-06-2016
Publisher: American Society for Testing and Materials
These test methods cover the determination of trace (μg/L) levels of fluoride, acetate, formate, chloride, phosphate, and sulfate in high purity water using ion chromatography in combination with sample preconcentration.
1.1These test methods cover the determination of trace (μg/L) levels of fluoride, acetate, formate, chloride, phosphate, and sulfate in high purity water using ion chromatography in combination with sample preconcentration. Other anions, such as bromide, nitrite, nitrate, sulfite, and iodide can be determined by this method. However, since they are rarely present in significant concentrations in high purity water, they are not included in this test method. Two test methods are presented and their ranges of application, as determined by a collaborative study, are as follows:
Range Tested (μg/L Added)
Limit of DetectionA (Single Operator) (μg/L)
Sections
Test Method A:
7–16
Chloride
0–24
0.8
Phosphate
0–39
B
Sulfate
0–55
1.8
Test Method B:
17–24
Fluoride
0–14
0.7
Acetate
0–414
6.8
Formate
0–346
5.6
1.2It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.3The common practical range of Test Method A is as follows: chloride, 1 to 100 μg/L, phosphate, 3 to 100 μg/L, and sulfate, 2 to 100 μg/L.
1.4The common practical range of Test Method B is as follows: fluoride, 1 to 100 μg/L, acetate, 10 to 200 μg/L, and formate, 5 to 200 μg/L.
1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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