次溴酸

次溴酸盐氧化法测定水中NH4-N的改进方法

Improved method of NH_4-N determined by hypobromite oxidation in water

在40～50℃，4乙酰基对三联苯经次溴酸钠氧化反应2h，得到4羧基对三联苯，收率为78%，熔点315～316℃。

ⅰ was oxidized by sodium hypobromite at 40-50 ℃ for 2 h to from 4 carboxy p terphenyl ( mp . 315-316 ℃) in 78 % yield .

本研究以浸酸牛皮为作用物，采用亚硝酸钠、次溴酸钠、甲醇及硫酸二甲酯分别对胶原侧链进行了修饰。

Using the pickled ox-hide collagen , the side-chain groups of collagen are modified with sodium nitrite , sodium hypobromite , methanol and dimethyl sulphate , respectively .

以百里酚的次溴酸钠溶液为显色剂，用正丁醇萃取显色产物，以分光光度计比色测定有机相的吸光度值。

Using thymol-sodium hypobromite as chromogenic reagent , and extracting the colour formed with butanol , a spectrophotometric method for the determination of arginine in fermentation broth was studied .

为了满足氨氮的水下现场自动分析的要求，作者对次溴酸盐氧化法测定海水中氨氮的规范分析方法进行了实验室系列条件优化；

In order to meet the demand of auto analyzing technology for ammonia in seawater , the routine ammonia analytical method ( NaBrO oxidation process ) was optimized , and the stability of reagents was improved by study of preservation methods .