Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Simultaneous determination of parabens in cosmetics by LC/MS

LC/MS를 이용한 화장품 중의 parabens 동시 분석 방법 연구

  • Park, Gyo-Beom (Center for Chemical Analysis, Korea Research Institute of Chemical Technology) ;
  • Lee, Sueg-Geun (Center for Chemical Analysis, Korea Research Institute of Chemical Technology)
  • 박교범 (한국화학연구원 화학분석센터) ;
  • 이석근 (한국화학연구원 화학분석센터)
  • Received : 2009.12.07
  • Accepted : 2010.01.04
  • Published : 2010.02.25
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Abstract

The simultaneous analysis of parabens in cosmetic samples was carried out by LC/MS. The cosmetic samples are directly dissolved in methanol and filterated using $0.45\;{\mu}m$ filter. The methanol-water was used for the mobile phase of gradient conditions. An Extend $C_{18}$ reverse-phase column and the selected ion monitoring (SIM) mode were applied. The analysis results of LC/MS showed good linearity with correlation coefficient of $r^2$=0.9993 in the range of 0.05 to $10\;{\mu}g$/mL and detection limit of $0.01\;{\mu}g$/mL.

액체크로마토그래피/질량분석법(LC/MS)을 이용하여 화장품에 들어있는 파라벤류등을 동시 분석하였다. 화장품 시료를 메탄올에 직접 용해시키고 $0.45\;{\mu}m$ 필터로 여과하여 메탄올/물을 이동상으로 하여 Extend $C_{18}$의 비극성 컬럼을 사용하여 기울기 용리 조건에서 12분 안에 분리하여 SIM(selected ion monitoring)방법으로 정량하였다. LC/MS 분석결과 검량선은 $0.05-10\;{\mu}g$/mL 농도범위에서 $r^2$=0.9993의 상관계수를 갖는 좋은 직선성을 나타내었으며, 검출한계는 $0.01\;{\mu}g$/mL 이었다.

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