篇名 | 可移除性衍生之液相層析法分析藥酒中微量甲醇含量 |
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卷期 | 10:2 |
並列篇名 | A Removable Derivatization HPLC for Analysis of Methanol in Chinese Liquor Medicine |
作者 | 郭家綺 、 溫燕霞 、 黃絜民 、 吳信隆 、 吳信昇 |
頁次 | 101-106 |
關鍵字 | 可移除性衍生 、 甲醇 、 高效能液相層析 、 藥酒 、 Removable derivatization 、 Methanol 、 HPLC 、 Chinese liquor medicine 、 MEDLINE 、 Scopus 、 SCIE |
出刊日期 | 200206 |
A high performance liquid chromatography (HPLC) method for the determination of trace methanol in high water content sample has been established. Using 4-[N-methyl, N-(1-naphthylmethyl)]-amino-4 oxobutanoic acid (NAOB), 4-dimethylaminopyridine (DMAP) and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) under a mild condition, the derivatization of methanol in aqueous solution was smoothly carried out before HPLC analysis. After derivatization, acidic or basic interfering substances and excess reagents can be easily removed from organic layer by simple acid-base shake-out. The condition for optimal derivatization of methanol in aqueous solution was established and applicable to the analysis of commercial Chinese liquor medicine (ethanol content 8~55%, v/v), the range of trace methanol in the above samples was 2.20 × 10-4~ 3.28 × 10-3% (v/v). The result showed that methanol contents in all samples were below regulation standard (< 0.1%, v/v).