Forensic Discrimination of Dishwashing Detergents by High-Performance Liquid Chromatography/Mass Spectrometry
Forensic Discrimination of Dishwashing Detergents by High-Performance Liquid Chromatography/Mass Spectrometry
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通过高效液相色谱/质谱法对餐具洗涤剂进行法医鉴别
DOI：
10.3408/jafst.10.99
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Tomoyuki Takahashi
中科院分区：
文献类型：
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作者：
Y. Adachi;Tomoyuki Takahashi
将高效液相色谱/质谱联用技术应用于餐具洗涤剂的法医学鉴定。在日本市售的每种餐具洗涤剂由阴离子、非离子、两性表面活性剂或这些表面活性剂的组合组成。这些表面活性剂在反相C18柱上用甲醇/10 mM乙酸铵梯度移动的相分离，并根据其分子相关离子和保留时间进行鉴定。对63种商业产品进行了分析，在所有可能的1,953对产品中，有1,928对（约1000对）进行了分析。99%），而不使用其他分析方法区分。所有不可区分的产品（25对）是来自具有不同香味和/或浓度的相同制造商的产品的变体，以及原始设备制造商（OEM）的产品。这些结果表明，LC/MS是一个可靠的工具，用于法医鉴别餐具洗涤剂中的表面活性剂。
High-performance liquid chromatography/mass spectrometry (LC/MS) was applied to the forensic discrimination of dishwashing detergents. Each dishwashing detergent, commercialy available in Japan, consists of anionic, nonionic, amphoteric surfactants or a combination of these surfactants. These surfactants were separated on a reversed-phase C18 column with methanol/10 mM ammonium acetate gradient mobile phase and were identified according to their molecular-related ions and retention times. Sixty-three commercial products were analyzed and 1,928 of all possible 1,953 pairs (ca. 99%) were distinguished without using other analytical methods. All of the indistinguishable products (25 pairs) were variation of products from a same manufacture with different fragrance, and/or concentration, and a product of original equipment manufacturer (OEM). These results indicate that LC/MS is a reliable tool for the forensic discrimination of surfactants in dishwashing detergents.