摘要
研究了苏丹红Ⅰ-甲醇体系的共振光散射（RLS）光谱和作用机制，建立了测定苏丹红Ⅰ的RLS新方法。温度20℃时，苏丹红Ⅰ-甲醇体系的RLS强度降低值（△Ⅰ）与苏丹红Ⅰ的浓度在0．5～16．0g／mL具有良好的线性关系，方法检出限0．16μg／mL，相对标准偏差（RSD）为1．8％～2．4％（n=11），加标回收率为92．7％～103．8％。
A quantitative method was developed for the determination of sudan Ⅰ by resonance light scattering. The RLS quenched intensity was proporitional to the concentration of sudan I in the range of 0.53-16.00 μg/mL with the detection limit of 0.16 μg/mL. The quantification limit was 0. 53 μg/ mL, the RSD was 1.82%-2.41%, and the average recovery was 92.67%-103.80%.
出处
《分析科学学报》
CAS
CSCD
2007年第6期739-740,共2页
Journal of Analytical Science
关键词
苏丹红Ⅰ
共振光散射
甲醇
Resonance Light Scattering
Sudan Ⅰ
Methanol
