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KMID : 0604520080340010057
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Journal of the Society of Cosmetic Scientists of Korea
2008 Volume.34 No. 1 p.57 ~ p.62
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Simultaneous Determination of Heavy Metals in Cosmetic Products by Ion Chromatography
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Lee So-Mi
Jung Hye-Jin
Kim Han-Kon
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Abstract
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No matter how small amount of heavy metals it may be cause skin allergies through percutaneous adsorption when existing in cosmetic products as impurities. In order to develop a highly sensitive method for simultaneous determination of in coloring agents and cosmetic products with rapidity and accuracy, we carried out the determination on ion chromatography. All of these metals are well separated through a bifunctional ion-exchange column(IonPac CS5A) and detected by post-column reaction and spectrophotometric detection. The calibration graphs are linear(>) in the range . Detection limits for 200 of sample solution are at the level of , which is sufficient for judging whether the product is safe or not. The relative standard deviations(RSDs) of the retention time and the peak area are less than 0.21 and 1.24%, respectively. The recovery rates are . The new method was applied to analyze the amount of heavy metals which were contained in 22 cosmetic products and 11 coloring agents.
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KEYWORD
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heavy metals, cosmetic products, ion chromatography, simultaneous determination, coloring agents
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