Organo mineral compound fertilizers are digested with sulfuric acid hydrogen peroxide and nitric acidperchloricacid respectively and then their total potassium content is determined.
用硫酸—过氧化氢和硝酸—高氯酸分别对有机—无机复混肥料进行消化处理，然后进行总钾含量的测定。
2
Methods: the sample, after the nitric acid and the perchloricacid digestion was induced in the flame atom absorption spectrophotometer with standard series comparison quota.
方法：样品用硝酸和高氯酸消化后，导入火焰原子吸收分光光度计中，与标准系列比较定量。
3
Sample preparation consisted of protein precipitation with perchloricacid.