摘要
本文描述了用2,3-二氨基萘荧光分光光度法测定水样中亚硝酸盐的最佳测定条件,并测定了井水和湖水中的亚硝酸盐。测定样品的检出限为0.4μg/L,线性范围是1.0~1500μg/L,相对标准偏差为1.6%,加标回收率为95%~106%。本法简便、快速,准确度高,共存离子干扰小,样品无须萃取步骤。
A rapid and sensitive spectrofluorometric method for the determination of trace nitrite is described.The method is besed on the reaction of nitrite with 2,3-diaminonaphthalene in acidic solution to form 1-[H]-naphthotriazole. The detection limit is 0.4μg/L. The linear range is 1.0~150.0μg/L, and the recovery of standard addition is in the range of 95~106%.The method has been applied to the determination of nitrite in well-water and lake-water samples
出处
《分析测试学报》
CAS
CSCD
1994年第3期67-70,共4页
Journal of Instrumental Analysis
关键词
亚硝酸盐
分光光度法
水质分析
Nitrite
2,3-Diaminonaphthalene
Spectrofluorometry.