摘要
基于铁(Ⅲ)-硫氰酸根络合物褪色动力学反应,利用流动注射分析停流技术,建立了流动注射动力学分析法同时测定碘离子和亚硝酸根离子的新方法.方法对碘离子的线性范围为2×10^(-5)～1.6×10^(-4)mol/L.对亚硝酸根的线性范围为4×10^(-7)～1×10^(-5)mol/L.应用于合成混合液中碘离子和亚硝酸根的测定,结果满意.
A stopped flow injection analysis for the simultaneous determination of iodide and nitrite is developed based on their kinetic effect on the colour fading of iron(Ⅲ)-thiocyanate complex in nitric acid solution. The linear range for iodide is 2×10-5 -1. 6 × 10-4 mol/L, and that for nitrite is 4-10-7-1-10-5 mol/L.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1995年第4期407-409,共3页
Chinese Journal of Analytical Chemistry
关键词
流动流射分析
碘离子
亚硝酸根
Flow injection analysis, kinetic catalytic method, simultaneous determination, iodide, nitrite
