INTERFERENCE IN DETERMINATION OF AMMONIA WITH THE HYPOCHLORITE ALKALINE PHENOL METHOD OF BERTHELOT
INTERFERENCE IN DETERMINATION OF AMMONIA WITH THE HYPOCHLORITE ALKALINE PHENOL METHOD OF BERTHELOT
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DOI：
10.1021/ac00238a015
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发表时间：
1982-01-01
影响因子：
7.4
通讯作者：
LENHOFF, HM
中科院分区：
文献类型：
--
作者：
NGO, TT;PHAN, APH;LENHOFF, HM
伯氏胺、硫化物、硫醇和抗坏血酸可抑制伯胺、仲胺、硫化物、硫醇和抗坏血酸生成的蓝色，叔胺的抑制作用较小。将胺、硫醇和其他亲核试剂加到贝瑟洛特反应的喹类中间体上，可以减少吲哚酚的生成。也有可能是还原剂将次氯酸盐消耗到次优水平。
The blue color resulting from the formation of indophenol in the Berthelot method of determining ammonia was suppressed by primary and seconary amines, sulfides, thiols, and ascorbic acid, and to a lesser extent by tertiary amines. Nucleophilic additions of amines, thiols, and other nucleophiles to the quinoid intermediates of the Berthelot reaction may decrease the formation of indophenol. It is also possible that reducing agents deplete hypochlorite to suboptimal levels.