NMAM 7903 Acids, Inorganic - Centers for Disease Control ...
Formic acid has been determined by this method [3]. INTERFERENCES: Particulate salts of all the acids will give a positive interference. Chlorine or hypochlorite ion interfere with chloride determination and bromine interferes with bromide. Silica gel will collect ca. 30% of the free Cl. 2. and Br. 2. in an atmosphere [4].
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