環境試料中塩化アルキルジメチルベンジルアンモニウムの定量

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書誌事項

タイトル別名
  • Determination of Alkylbenzyldimethylammonium Chlorides in Environmental Samples
  • カンキョウ シリョウチュウ エンカ アルキルジメチルベンジルアンモニウム ノ テイリョウ

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抄録

Alkylbenzyldimethylammonium chlorides (BACs) have been widely used as cationic surfactants with antiseptic properties, as disinfectants and in hair cosmetics. We developed a method for determining BACs in wastewater and sediment samples by liquid chromatography — mass spectrometry. C12, C14, and C16 alkyl BACs are the major components in commercial products, and we therefore developed a determination method for these compounds. The detection limit for water samples was less than 0.01 μg · l-1. Instrumental detection limits (IDLs), calculated from replicate analyses of standards, ranged from 0.00066 (C14BAC) to 0.00284 (C12BAC) μg · l-1. Method detection limits (MDLs), calculated from replicate analyses of spiked purified water, were 0.00609 (C12BAC) to 0.00803 (C16BAC) μg · l-1. Total method recoveries of purified water, ranged from 71.3% (C16BAC) to 86.0% (C12BAC) with relative standard deviations of 3.7% (C12BAC) to 5.9% (C16BAC). Recoveries of river water and sea water, ranged from 62.7% (C16BAC) to 83.9% (C12BAC). MDLs for sediments ranged from 0.821 (C12BAC) to 0.963 (C16BAC) μg · kg-1 and recoveries of sediment, ranged from 63.9% (C16BAC) to 87.6% (C16BAC).

収録刊行物

  • 水環境学会誌

    水環境学会誌 31 (4), 203-208, 2008

    公益社団法人 日本水環境学会

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