Optimization of the determination of ortho-phthalaldehyde in air by derivatization with 2,4-dinitorophenylhyrazine (DNPH).

Received Mar 2, 2009; Accepted May 14, 2009 Published online in J-STAGE Jun 18, 2009 Correspondence to: A. Takeuchi, Osaka Occupational Health Service Center, Japan Industrial Safety and Health Association, 2–3–8 Tosabori, Nishi-ku, Osaka 550-0001, Japan (e-mail: a-takeuchi@jisha.or.jp) Optimization of the Determination of Orthophthalaldehyde in Air by Derivatization with 2,4-dinitorophenylhyrazine (DNPH)