PMID- 18841308 OWN - NLM STAT- MEDLINE DCOM- 20081216 LR - 20081008 IS - 1525-7886 (Print) IS - 1525-7886 (Linking) VI - 59 IP - 5 DP - 2008 Sep-Oct TI - Simultaneous determination of heavy metals in cosmetic products. PG - 441-8 AB - An extremely small amount of several heavy metals have been detected in cosmetic products as impurities, which can cause skin allergies through percutaneous adsorption on the skin. We present here a fast, accurate, and highly sensitive method for simultaneous determination of Pb2+, Fe2+, Cu2+, Ni2+, Zn2+, Co2+, Cd2+ and Mn2+ in coloring agents and cosmetic products, to be evaluated by 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 (r2 > 0.999), in the range 0.1-1000 microg/ml. Detection limits for a 200-microl sample solution are at the mug/l level, 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 97-104%. The result shows that the proposed determination method is more sensitive, more accurate, and faster than current methods such as HPLC, ICP-MS and Flame-AAS. The new method was applied to analyze the amount of heavy metals contained in 22 cosmetic products and 11 coloring agents. FAU - Lee, So-Mi AU - Lee SM AD - Amore Pacific Corporation, 314-1 Bora-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-729, Republic of Korea. FAU - Jeong, Hye-Jin AU - Jeong HJ FAU - Chang, Ih Seop AU - Chang IS LA - eng PT - Journal Article PL - United States TA - J Cosmet Sci JT - Journal of cosmetic science JID - 9814276 RN - 0 (Cosmetics) RN - 0 (Metals, Heavy) SB - IM MH - Cosmetics/*chemistry MH - Metals, Heavy/*analysis EDAT- 2008/10/09 09:00 MHDA- 2008/12/17 09:00 CRDT- 2008/10/09 09:00 PHST- 2008/04/09 00:00 [accepted] PHST- 2008/10/09 09:00 [pubmed] PHST- 2008/12/17 09:00 [medline] PHST- 2008/10/09 09:00 [entrez] PST - ppublish SO - J Cosmet Sci. 2008 Sep-Oct;59(5):441-8.