摘要
该文对目前测定水中硫酸盐的铬酸钡分光光度法(HJ/T 342-2007)进行了改进,对改进后的方法进行了检出限、精密度和准确度的检验。结果表明:改进后方法的检出限大大降低,为0.3mg/L,测定下限为1.2mg/L;对不同浓度样品多次重复测定得到实验精密度小于5%;用低浓度标准样品进行准确度检验,测定结果合格。
Improving barium chromate spectrophotometry （HJ/T 342-2007 ）, the detection limit, precision and the ac- curacy of the improved method were studied. The results show that the detection limit of the improved method was 0.3mg/L, reduced greatly and the determination limit was 1.2mg/L. The precision was less than 5% by determining different samples. The accuracy determination results was qualified.
出处
《安徽农学通报》
2015年第23期22-22,25,共2页
Anhui Agricultural Science Bulletin
关键词
分光光度法
硫酸盐
浓缩
检出限
测定下限
Spectrophotometricmethod
Sulfate
Concentration
Detection limit
Determination limit
