I was able to construct a standard curve for acetic acid using above-mentioned method for 200-1000ppm. But I failed many a time for the same for concentrations 20-100ppm. After the entire reaction was completed some suspended particles or gas bubbles built up observed irrespective of the usage of distilled water for reagent preparation. Is it possible to use the method below 100ppm?
Bruce Neagle
Not really. The LOQ of these method was 28 mg/L or ppm. See the attached article;
http://www.pjoes.com/pdf/17.3/351-356.pdf
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