Abstract:

A method was developed for the determination of formaldehyde in smoked meat using gas chromatograph-mass
spectrometer (GC-MS). The optimal derivatization and extraction conditions were determined as the follows: derivatization
with 0.3 mL of 2,4-dinitrophenylhydrazine at 60 ℃ for 30 min, and two repeated extractions with dichloromethane. The
average recoveries at low, moderate, and high spiked levels were 79.8%, 84.0% and 89.4%, repeatability. The repeatability
expressed as relative standard deviation was 2.89%, and the detection limit was 0.50 mg/kg. The method is simple, rapid,
accurate, and sensitive and can be used for the determination of formaldehyde in smoked meat.

Key words: formaldehyde, gas chromatograph-mass spectrometer (GC-MS), extraction, derivatization