中和废气冷凝液中硝酸铵的测定

Determination of Ammonium Nitrate from Neutralized Exhaust Gas Condensate

中和废气冷凝液经加热除氨后 ,纳氏试剂与NH4+显色反应 ,用分光光度法测定样品中微量NH4NO3 。测定波长 42 0nm。加标回收率 92 %～ 10 4% ,相对标准偏差 3.1%。

Determination of trace ammonium nitrate from neutralized exhaust gas condensate was achieved by reaction of ammonium ion with Nesslers reagent after removal of ammonia by heating, and then analyzed by spectrophotometry at 420 nm. The recovery rate was 92%～104% and the relative standard deviation was 3.1%.