摘要
该文选取5种铜基营养保护剂,通过采用离心干燥法、比浊法、铜氨比色法测定其悬浮浓度,并分别与直接烘干法测得的悬浮浓度建立相关方程,探讨铜基营养保护剂悬浮浓度快速测定的方法。结果表明:铜氨比色法能够快速准确地测定铜基营养保护剂的悬浮浓度,平均相对误差小于5%,同时可较大缩短分析时间(检测时间由原来的24h缩短为30min),显示出了明显的优越性,为快速分析铜基营养保护剂提供了新方法。
In order to find the rapid determination methods of suspension concentration, five copper- based nutritional protective powders were studied by using three methods namely centrifuge drying method, turbid colorimetric method and copper ammonia colorimetric method to establish correlation equations with the results obtained from direct drying method. The results showed that the copper ammonia colorimetric method could accurately measure the suspension concentrations of copper-based nutritional protective powders, the average relative error was less than 5% and the test time was much less than before from the original 24 hours to 30 minutes. This method had outstanding advantages and provided new way for the determination of copper-based nutritional protective powders.
出处
《中国测试》
CAS
北大核心
2013年第4期36-39,共4页
China Measurement & Test
基金
十二五"国家科技支撑计划(2011BAD11B01
2011BAD11B02)
国家"948"重点项目(2011G30)
山东省农业科技成果转化资金项目(鲁科农字[2010]79号)
关键词
铜基营养保护剂
悬浮浓度
快速测定
铜氨比色法
copper -based nutritional protective powder
suspension concentration
rapid determination
copper ammonia colorimetric method
