[Contents of eleven phthalates and di(2-ethylhexyl) adipate in retail packed lunches after prohibition of DEHP-containing PVC gloves for cooking purposes].
Ten samples of retail packed lunches purchased from convenience stores were determined for 11 phthalates and di(2-ethylhexyl) adipate (DEHA) in August 2000, 2 months after the prohibition of DEHP-containing PVC gloves in Japan. Each homogenized sample was extracted with acetonitrile, partitioned with n-hexane, and cleaned up using Florisil and PSA columns. Phthalates in the extract were determined by GC/MS (SIM). The limits of detection were 14.9 ng/g for di(2-ethylhexyl) phthalate (DEHP) and 18.6 ng/g for dibutyl phthalate (DBP). Levels of phthalates in packed lunch samples were 45 to 517 ng DEHP/g (198 ng/g, average), ND to 90 ng DEHA/g, and ND to 10.0 ng BBP/g. Diisononyl phthalate (DINP) was detected in one sample at 76 ng/g. Average DEHP level in ten samples was 4% of that in 1999. The contents of other phthalates were also reduced. DBP was not detected in any sample. Recovery of deuterated isomers added as surrogates was 27.9% for DNP-d4, and 40.6 to 101.5% for the other phthalates.
Tsumura
Y
Y
National Institute of Health Sciences, Osaka Branch: 1-1-43, Hoenzaka, Chuo-ku, Osaka 540-0006, Japan.
Ishimitsu
S
S
Nakamura
Y
Y
Yoshii
K
K
Kaihara
A
A
Tonogai
Y
Y
D000272:Adipates / Q000032:analysis*; D004051:Diethylhexyl Phthalate / Q000032:analysis*; D005504:Food Analysis; D008401:Gas Chromatography-Mass Spectrometry; D017575:Gloves, Protective; D017633:Magnesium Silicates; D010795:Phthalic Acids / Q000032:analysis*
D000272:Adipates; D017633:Magnesium Silicates; D010795:Phthalic Acids; C005013:Florisil; C032279:phthalic acid; C029900:adipic acid; D004051:Diethylhexyl Phthalate