• 另一种2-巯基苯并噻唑先将甲烷氰化钠反应生成硫氰酸甲酯,然后硫氰酸甲酯与2-巯基苯并噻唑反应得到苯噻氰。

    It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.

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  • 目的建立芬酸原料氯甲烷甲苯1,2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法

    Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.

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  • 样品四丁基化铵氯甲烷离子萃取方法相离子对色谱分离联用,水体芳香族磺酸盐的检测提供了可靠的监测手段

    The combination of ion-pair extraction technology with reversed-phase ion-pair chromatography method provide a effective inspection measure for the sulfonates in water.

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  • 样品四丁基化铵氯甲烷离子萃取方法相离子对色谱分离联用,水体芳香族磺酸盐的检测提供了可靠的监测手段

    The combination of ion-pair extraction technology with reversed-phase ion-pair chromatography method provide a effective inspection measure for the sulfonates in water.

    youdao

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