Control samples for the determination of pH in low ionic strength waters: consensus values from interlaboratory tests |
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Authors: | Gardner M J Ravenscroft J E Ackers C |
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Institution: | WRC, Henley Road Medmenham, Marlow SL7 2HD, UK. |
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Abstract: | The results of a series of interlaboratory tests using low ionic strength buffer solutions are reported. The test data and other background information are presented as the basis for more realistic quality control materials for pH determination in low ionic strength waters. The effect of atmospheric carbon dioxide on the pH of low ionic strength reference samples is discussed. Several control samples are recommended for routine use. |
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