摘要
将尿样消化引入ＦＩＡ流路，并与催化光度法相结合，建立了尿碘的流动在线消化催化光度法，从而实现了尿碘的快速自动测定。本法分析速度１３０／ｈ，检测范围宽达４０～１６００μｇ／ＬＩ＾－，重现性好，实际尿样测定ＲＳＤ≤６．９％（ｎ＝８），方法具有创新和实用性，对尿碘的快速准确定值及碘缺乏病的防治有重要意义。
A rapid FIA catalytic spectrophotomtric system coupled with on-line digeshon fordetermination of iodine in urine, combined with mergine zones and stopped-flow techniques, has beendeveloped. The urine sample was digested with KMnO4-K2Cr2O7-H2SO4 solution and introduced into thesystem to achieve on-line treatment. The method has been successfully applied to the determination ofiodine in urine samples. The calibration graph provides wide linear range from 40 μg/l to 16 mg/L, withcorrelation coefficient of over 0. 995, average recovery 91. 4% . The analyis rate is about over 130samples per hour. The determination result was agreement with routirne acid digestion method.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2000年第4期486-490,共5页
Chinese Journal of Analytical Chemistry
基金
四川省卫生厅资助
关键词
流动注射分析
催化光度法
尿碘
测定
Flow injection analysis, catalytic spectrophotometry, on-line digestion, urine iodine
