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Concentrations and analytical methods for formaldehyde,acetaldehyde,and acrolein in air are reviewed.Much attention is paid on formaldehyde because of its high level concentration and of its toxicity.Reliable analytical methods are chromotropic acid method,pararosaniline method, AHMT method,and DNPH/HPLC methods.Among several continuous methods for formaldehyde analysis in air, AHMT method is very promissing.DNPH/HPLC method seems to be very useful for acetaldehyde analysis and 4-hexyl-resorcin method and oxazolidine derivatization/ GC method for acrolein analysis at the present time.
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Akio Yasuhara (1991) studied this question.
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