火焰原子吸收法测定水中的总铬  

Discussion on Determination of Total Chromium in Water by FAAS

作　　者：姜秋俚[1,2] 孙铁珩[1,3] 张见昕[2] 刘畅[2] 付友生[2] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110004 [2]辽宁省环境监测实验中心,沈阳110031 [3]沈阳大学环境工程重点实验室,沈阳110044

出　　处：《环境保护科学》2011年第6期94-97,共4页Environmental Protection Science

摘　　要：用火焰原子吸收光谱法测定水中总铬,乙炔流量100L/h、燃烧头高度为9mm、狭缝宽度0.2nm时,灵敏度和重现性最好。1mg/L铬溶液中盐酸含量5%、氯化铵含量0.5%时,吸光度较高,相对标准偏差最低。该方法操作简便,灵敏度好,精确度和准确度高,便于推广,适合水中总铬的测定。Based on determination of total chromium in water by FAAS （Flame Atomic Absorption Spectrometry）, sensitivity and reproducibility are best under the conditon of acetylene flux is 100 L/h, burner height is 9mm, slit width is 0.2 nm. Absorbency is higher and relative standard deviation is the lowest while hydrochloric acid in 1mg/L chromium solution is 5% and ammonium chloride is 0.5%. This method is easy to spread for determination of total chromium in water owe to its easy operation, high sensitivity, precision and accuracy.

关 键 词：火焰原子吸收法 水 总铬 

分 类 号：X832.02[环境科学与工程—环境工程]