Abstract
Formic and acetic acids in aqueous solution are analyzed by gas chromatography using the flame ionization detector. A specially conditioned four-foot glass column packed with Porapak Q coated with 3% phosphoric acid is used. The lower detectable limits for formic and acetic acids in solution are 100 µ g and 3.0 µ g [micrograms] respectively. By combining steam distillation and concentration steps, concentrations of 1.0 mg/l of formic acid and 0.03 mg/l of acetic acid can be measured.
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