[Detection of tris(2,4-di-tert-butylphenyl)phosphite (Irgafos 168, antioxidant in plastics) and its oxide in commercial frozen vegetables].
Two peaks, A and B, detected in chromatograms of commercial frozen vegetable extracts during analysis of organophosphorus pesticide residues by GC-FPD, were identified as tris(2,4-ditert-butylphenyl)phosphite (Irgafos 168) and Irgafos 168 oxide, respectively, from their mass spectra. Irgafos 168 is used as an antioxidant in plastics, and there has been no report of its detection in foods. We analyzed Irgafos 168 and its oxide in 38 samples of commercial frozen vegetables, and they were detected from 4 samples (0.02-0.80 microgram/g as total amount of Irgafos 168 and its oxide).
Tanaka
Yasuo
Y
Yokohama City Institute of Health: 1-2-17, Takigashira, Isogo-ku, Yokohama 235-0012, Japan.
Takahashi
Kyoko
K
Sasao
Tadayoshi
T
Kirigaya
Tadashi
T
Hosoi
Shiro
S
Nagaoka
Noboru
N
Kawamura
Taro
T
Nakazawa
Hiroyuki
H
D000975:Antioxidants / Q000032:analysis*; D005504:Food Analysis / Q000379:methods; D018857:Food Packaging; D005519:Food Preservation; D005628:Frozen Foods / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D017905:Phosphites / Q000032:analysis*; D010969:Plastics / Q000737:chemistry; D014675:Vegetables / Q000737:chemistry*
D000975:Antioxidants; D017905:Phosphites; D010969:Plastics; C083748:tris-(2,4-di-tert-butylphenyl) phosphite