Use of isocyanates for assaying nucleophilic functions in the form of traces in wet medium
    3.
    发明授权
    Use of isocyanates for assaying nucleophilic functions in the form of traces in wet medium 失效
    使用异氰酸酯来测定在湿介质中痕量形式的亲核功能

    公开(公告)号:US06534317B1

    公开(公告)日:2003-03-18

    申请号:US09508787

    申请日:2000-05-08

    IPC分类号: G01N3300

    CPC分类号: G01N31/22 Y10T436/172307

    摘要: A method for detecting traces of pollutant in aqueous media, wherein the method includes the use of isocyanates to react on the nucleophilic functions in the form of trace amounts in a wet medium. The method for assaying nulceophilic functions in a wet medium includes the following steps: adding isocyanates to an aqueous solution of basic pH containing the nucleophilic functions to be tested; maintaining the solution for an interval ranging from a few minutes to several dozens of minutes at a temperature lower than 100° C.; and assaying the resulting carbamate, thiocarbamate or urea.

    摘要翻译: 一种用于检测水性介质中痕量污染物的方法,其中所述方法包括使用异氰酸酯以湿介质中痕量形式的亲核功能反应。 用于测定湿培养基中的亲脂性功能的方法包括以下步骤:将异氰酸酯加入含有待测试的亲核功能的碱性pH水溶液中; 在低于100℃的温度下将溶液保持几分钟至数十分钟的间隔; 并测定所得氨基甲酸酯,硫代氨基甲酸酯或尿素。