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題名 | Determination of Formaldehyde in Cosmetics by HPLC Method and Acetylacetone Method=以高效液相層析法及乙醯丙酮比色法分析化粧品中甲醛含量之探討 |
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作者 | 吳白玟; 鄭秋真; 周薰修; | 書刊名 | 藥物食品分析 |
卷期 | 11:1 2003.03[民92.03] |
頁次 | 頁8-15+73 |
分類號 | 412.36 |
關鍵詞 | 化粧品; 甲醛; 甲醛供體; 高效液相層析法; 乙醯丙酮比色法; Cosmetics; Formaldehyde; Formaldehyde donor; HPLC; Acetylacetone; |
語文 | 英文(English) |
中文摘要 | 本篇論文以高效液相層析法,檢測化粧品中游離甲醛含量,即樣品先衍生化,取注射量為10μL,經乙腈和水 (45:55,v/v) 為移動相,流速1.0 mL/min,RP8層析管柱分離,於UV 345 nm檢測,所得甲醛最低檢出限量為0.2ppm。此外,比較兩種檢測方法對0.2%之五種甲醛供體溶液進行分析,所測得之甲醛含量,以乙醯丙酮比色法較高效液相層析法高出1.62-17.35倍,顯示乙醯丙酮比色法不適用於游離甲醛之分析。依上述兩種方法檢測1995-1996年間一百件市售化粧品,其中53%之檢體檢出甲醛呈陽性反應,總游離甲醛基含量為3-165ppm,均低於行政院衛生署公告規定之1000ppm。 |
英文摘要 | This paper describes an assay method to determine free formaldehyde in cosmetics using High Performance Liquid Chromatography (HPLC), with a pre-column derivation with 2,4-dinitrophenylhydrazine. The derivatives were analyzed using a RP8 column with 45% acetonitrile solution as mobile phase and detected at the wavelength of 345 nm. The detection limit of derived formaldehyde in this HPLC system was 0.2 ppm. Compared with the amounts of formaldehyde analyzed from the 0.2% formaldehyde donors, the results obtained by acetylacetone method were 1.62~17.35 times higher than that of HPLC method. One hundred cosmetic products purchased during 1995-1996 were investigated. None of those products was labeled formaldehyde. The results showed that 53% of the samples were formaldehyde positive. The amounts of total free formaldehyde were between 3~165 ppm. All of them were less than 1000 ppm. |
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