【摘要】 基于除草剂甲磺草胺对Ag（Ⅲ）配合物-鲁米诺体系的化学发光强度增敏作用，结合流动注射，建立了以流动注射化学发光分析测定甲磺草胺的方法。在碱性条件下，当Ag（Ⅲ）配合物的浓度为3.00×10^-5 mol·L^-1,鲁米诺溶液的浓度为8.0×10^-7 mol·L^-1,流速为3.3 mL·min^-1时，测定甲磺草胺的灵敏度最高。在最佳实验条件下，甲磺草胺浓度在7.0×10^-8～3.0×10^-6 mol·L^-1范围内，与发光强度及空白发光强度的比值呈良好的线性关系，方法的检出限为2.6×10^-10 mol·L^-1,相关系数为0.9942。对浓度为8.0×10^-8 mol·L^-1的甲磺草胺溶液9次平行测定的相对标准偏差为0.34%。更多还原

【Abstract】 Combined with flow injection, the Ag（III）complex-luminol chemiluminescent system in alkaline condition which was applied to the determination of sulfentrazone was firstly reported, based on the enhancing effect of sulfentrazone on the chemiluminescence reaction of luminol with[Ag（HIO₆）₂]^5-.The main factors affecting the determination were investigated.Under the optimum conditions, the ratio of CL intensity was proportional to concentration of sulfentrazone in the range of 5.0×10^-8～3.0×10^-6 mol·L^-1.The detection limit of sulfonamide was 2.6×10^-10 mol·L^-1.RSD was 0.34% for 9 parallel measurements of sulfonamide solution with concentration of 8.0×10^-8 mol·L^-1.The results were satisfactory for analysis.更多还原