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用分光光度法测定5批胎脑注射液中的总氮含量,并与凯氏定氮法(药典法)比较,结果经t检验,P>0.05,两法间无显著性差异。
The contents of total nitrogen in five batches of fetal brain injection were determined by spectrophotometry and compared with Kjeldahl method (Pharmacopoeia method). The results of t test showed that there was no significant difference between the two methods.