摘要
研究采用硫酸铵-氨水溶解氧化锌试样,EDTA滴定法测定氧化锌含量。结果表明,用200 g.L-1硫酸铵溶液10 mL,5 mL氨水溶解分析试样,搅拌5 min后试样中氧化锌溶解完全,金属锌、氧化铁等杂质不溶,氧化锌的测定不受这些杂质的干扰,测定结果与传统溶样方法的测定结果相吻合,相对标准偏差小于0.11%。
Applied 200 g/L ammonium sulphate solution 10 mL and 5 mL ammonia water as dissolvent,EDTA titration method was used to determine zinc oxide,and after 5min,the sample was dissolved completely.The impurities of zinc and iron oxide did not interferes with the determination of zinc oxide.The result was identical with the traditional method,and the RSD was less than 0.11%.
出处
《化工技术与开发》
CAS
2011年第5期40-41,共2页
Technology & Development of Chemical Industry
关键词
氧化锌
溶样
硫酸铵-氨水
zinc oxide
dissolve sample
ammonium sulphate-ammonia water
