Analysis of vinylidene chloride and 1-chlorobutane in foods packaged with polyvinylidene chloride casing films by headspace gas chromatography/mass spectrometry (GC/MS).
A headspace gas chromatography/mass spectrometry method was developed for the simultaneous determination of vinylidene chloride and 1-chlorobutane in foods packaged with polyvinylidene chloride casing films. The solid foodstuff was homogenized with an equal mass of distilled water. The homogenate was incubated for 1 h at 90 degrees C in a sealed headspace vial, and the headspace gas was then analysed by gas chromatography/mass spectrometry in selected ion-monitoring mode using a bonded porous polymer-coated capillary column. The recovery rates of vinylidene chloride and 1-chlorobutane in foodstuffs were 94.5-103.9 and 85.8-120.3%, respectively. Among 13 samples tested, vinylidene chloride was detected at 0.001-0.020 microg g(-1) in 11 foodstuffs, and 1-chlorobutane was detected at 0.004-0.040 microg g(-1) in all 13 foodstuffs. Furthermore, vinylidene chloride was detected at 0.04 microg g(-1) in one casing film, and 1-chlorobutane was detected in all casing films. The results indicate that these compounds migrated from the casing films into the foodstuffs.
Ohno
H
H
Environmental Health Department, Nagoya City Public Health Research Institute, 1-11, Hagiyama-cho, Mizuho-ku, Nagoya 467-8615, Japan. ehdeiken@sa.starcat.ne.jp
Kawamura
Y
Y
D002073:Butanes / Q000032:analysis*; D002138:Calibration; D004000:Dichloroethylenes / Q000032:analysis*; D004350:Drug Residues / Q000032:analysis; D005504:Food Analysis; D005506:Food Contamination / Q000032:analysis*; D018857:Food Packaging / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D011143:Polyvinyl Chloride / Q000031:analogs & derivatives*
D002073:Butanes; D004000:Dichloroethylenes; C029297:vinylidene chloride; C029547:polyvinylidene chloride; D011143:Polyvinyl Chloride; C006854:butyl chloride