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高氯酸溶样在炉前快速测氮及成品分析中已得到普遍的应用,但需要适当控制试样的称量、高氯酸用量、高氯酸冒烟时的电炉温度与时间。现将我们的试验结果介绍如下: 一高氯酸冒烟时NH_3的氧化损失问题在高氯酸溶液中加入一定量的氮标液(用NH_4Cl
Perchloric acid solution has been widely used in rapid nitrogen measurement in the furnace and finished product analysis. However, it is necessary to properly control the weighing of the sample, the perchloric acid dosage and the temperature and time of the electric furnace when perchloric acid smokes. Now our test results are as follows: A perchloric acid smoke NH3 oxidation loss problem Perchloric acid solution by adding a certain amount of nitrogen standard solution (with NH4Cl