NGHIÊN CỨU XÁC ĐỊNH ĐỒNG THỜI HÀM LƯỢNG VẾT MỘT SỐ NGUYÊN TỐ TRONG MỸ PHẨM PHẤN MÁ HỒNG BẰNG PHƯƠNG PHÁP PHỔ KHỐI LƯỢNG PLASMA CAO TẦN CẢM ỨNG (ICP- MS)

Tóm tắt

Concentration of chromium, manganese, iron, cobalt, copper, zinc, arsenic, selenium, silver, cadmium,
mercury, lead (Cr, Mn, Fe, Co, Cu, Zn, As, Se, Ag, Cd, Hg, Pb) in some kinds of powder blush samples
were determined by inductively coupled plasma - mass spectrometry (ICP-MS) after dry ashing
digestion combination with wet ashing digestion. The results of analysis showed that most of the
elements are in the limited range of concentration according to cosmetic management regulations
(06/2011/TT-BYT; Agreement on the ASEAN harmonized Cosmetic Regulatory Scheme - appendix
III…). The method has low detection limits with ppt level, the relative standard deviations (% RSD) are
less than 7.5%, and the recovery of elements are in the range from 63.4 % to 95.5 %, which meets
AOAC requirements for trace.