GB/T 24800.8-2009 Determination of methotrexate in cosmetics by high performance liquid chromatography method

GB/T 24800.1-2009 Determination of 9 tetracyclines in cosmetics by high performance liquid chromatography method GB/T 24800.2-2009 Determination of 41 glucocorticoids in cosmetics by LC-MS-MS and TLC method GB/T 24800.3-2009 Determination of spironolacton, benzoyl peroxide and tretinoin in cosmetics by high performance liquid chromatography method GB/T 24800.4-2009 Determination of chlortalidone and phenothiazine in cosmetics by high performance liquid chromatography method GB/T 24800.5-2009 Determination of nitrofurantoin and furazolidone in cosmetics by high performance liquid chromatography method GB/T 24800.6-2009 Determination of 21 sulfonamides in cosmetics by high performance liquid chromatography method GB/T 24800.7-2009 Determination of brucine and strychnine in cosmetics by high performance liquid chromatography method GB/T 24800.9-2009 Determination of citral,cinnamyl alcohol,anise alcohol,cinammal and coumarin in cosmetics by gas chromatography method GB/T 24800.10-2009 Determination of 19 flavors in cosmetics by gas chromatography-mass spectrometry method GB/T 24800.11-2009 Determination of benzyl alcohol as antiseptic in cosmetics by gas chromatography method GB/T 24800.12-2009 Determination of p-phenylenediamine,o-phenylenediamine and m-phenylenediamine in cosmetics GB/T 24800.13-2009 Determination of nitrite in cosmetics by ion chromatography method