KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
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Determination of Antioxidants in Polyolefin Packaging Materials

폴리올레핀계 포장재 중의 항산화제 분석

  • Lee, Keun-Taik (Department of Food Science, Kangnung National University) ;
  • Park, Young-Ju (Department of Food Science, Kangnung National University)
  • Published : 1995.11.01
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Abstract

The conditions of Soxhlet extraction and HPLC analysis were examined for the determination of antioxidants used for polyolefins manufacturing. The extraction with methylene chloride in a Soxhlet apparatus for 10 hours and above provides almost complete recovery of the additives from polyolefins. The determination of the antioxidants including BHT, Irganox 1076, Irganox 1010 and Irgafos 168 could be successfully performed by using reversed-phase HPLC under gradient elution where the baseline separation of all four antioxidants in a single run was possible. In addition, the antioxidants inherently contained in commercial LLDPE and OPP films were identified and quantitatively determined.

폴리올레핀계 포장재에 첨가된 항산화제를 분석하기 위하여 Soxhlet 추출과 HPLC에 의한 분석방법을 검토하였다. Soxhlet에 의한 폴리올레핀계 포장재에서의 첨가제 추출은 약 10시간 이내에 거의 완료되는 것으로 나타났다. 또한 BHT, Irganox 1076, Irganox 1010, Irgafos 168 등 4가지 항산화제의 동시검색은 역상 HPLC를 이용하여 gradient elution으로 baseline resolution의 분리가 가능하였다. 또한 LLDPE와 OPP 필름 중에 첨가된 4가지 항산화제의 확인 및 정량도 가능하였다.

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