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See Chinese contents: QB/T 5291-2018 QB/T 5291-2018: Determination of hexavalent chromium in cosmetics
This standard specifies the methods for the determination of hexavalent chromium in cosmetics, by diphenylcarbazide spectrophotometry and ion chromatography-inductively coupled plasma mass spectrometry. This standard applies to the determination of hexavalent chromium in cosmetics. When the sample weight is 2 g, the detection limit of diphenylcarbazide spectrophotometry is 0.25 mg/kg, the quantification limit is 0.83 mg/kg; the detection limit of ion chromatography-inductively coupled plasma mass spectrometry is 0.010 mg/kg, the quantification limit is 0.033 mg/kg.
