KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
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A Study on the Migration of Heavy Metals from Polycarbonate Food Contact Materials Using an Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

식품용 폴리카보네이트 기구류 중 ICP-MS를 이용한 중금속 이행량 조사

  • Park, Se-Jong (Food Additives and Packaging Division, National Institute of Food and Drug Safety Evaluation) ;
  • Park, So-Ra (Food Additives and Packaging Division, National Institute of Food and Drug Safety Evaluation) ;
  • Kim, MeeKyung (Food Additives and Packaging Division, National Institute of Food and Drug Safety Evaluation) ;
  • Choi, Jae Chun (Food Additives and Packaging Division, National Institute of Food and Drug Safety Evaluation)
  • 박세종 (식품의약품안전평가원 첨가물포장과) ;
  • 박소라 (식품의약품안전평가원 첨가물포장과) ;
  • 김미경 (식품의약품안전평가원 첨가물포장과) ;
  • 최재천 (식품의약품안전평가원 첨가물포장과)
  • Received : 2018.10.15
  • Accepted : 2018.11.14
  • Published : 2018.12.31
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Abstract

The purpose of this study was to investigate the migration levels of lead (Pb), cadmium (Cd) and arsenic (As) from polycarbonate food contact materials into food simulant at different temperatures ($70^{\circ}C$ and $100^{\circ}C$). The method was validated by linearity of calibration curves, limit of detection (LOD), limit of quantification (LOQ), recovery, precision and uncertainty. All of 200 samples, including bottles, cups, containers, ladles, spoons and tongs were purchased from domestic markets and analyzed by inductively coupled plasma mass spectrometry (ICP-MS). Mean concentrations of positive samples were higher at $100^{\circ}C$ than $70^{\circ}C$ as showing a dependency of migration temperature. The migration concentrations ranged from not-detected (ND) to $4.67{\mu}g/L$, ND to $0.49{\mu}g/L$L and ND to $2.91{\mu}g/L$ for Pb, Cd and As, respectively, which were far below the migration limits of Korea standards and specifications for food utensils, containers and packages.

납, 카드뮴 및 비소의 폴리카보네이트 기구류에서 식품으로의 이행 수준을 ICP-MS로 조사하였다. 분석법을 확립 및 검증(검량선, 검출한계, 정량한계, 회수율, 정밀성 및 측정불확도)하고 식품모사용매(4% 초산)로 용출시켜 이행량을 분석하였다. 폴리카보네이트 재질 기구인 컵 63종, 용기 62종, 물병 55종, 스푼 9종, 국자 6종 및 집게 5종으로 총 200종의 시료를 $70^{\circ}C$와 $100^{\circ}C$에서 30분간 용출한 결과, 납, 카드뮴 및 비소가 각각 $ND{\sim}4.67{\mu}g/L$, $ND{\sim}0.49{\mu}g/L$및 $ND{\sim}2.91{\mu}g/L$수준으로 용출되었다. 또한, 온도에 따른 이행량 차이를 관찰한 결과, $70^{\circ}C$보다는 $100^{\circ}C$에서 용출되는 이행량이 다소 높았다. 결론적으로 현재 국내에 유통 중인 폴리카보네이트 기구류 중 납, 카드뮴 및 비소는 식품용 기구 및 용기 포장 공전에 명시된 용출규격 이하로서 안전하게 관리되고 있는 것으로 판단되었다.

Keywords

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