The best conditions in the lab under method of Nessler reagent spectrophotometry were: the best color-developing time is 0 minutes, the color-developing temperature is about ℃, the range of pH value is .8～., the dosage of color-developing is .ml.
The best conditions in the lab under method of Nessler reagent spectrophotometry were: the best color-developing time is 0 minutes, the color-developing temperature is about ℃, the range of pH value is .8～., the dosage of color-developing is .ml.
得出实验室用纳氏试剂分光光度法准确测试水体中凯氏氮含量的显色最佳条件为:显色时间为0min、显色温度为℃,pH值范围为.8～.,显色剂用量为.ml。