摘要
本文建立了基于在稀盐酸介质中氯胺T氧化孔雀绿这一新指示反应催化光度法测定痕量碘的新方法。该法的检出限为 4 9× 10 -10 g·mL-1,线性范围为 0～ 4 8μg·L-1。此法灵敏、简便、选择性好、用于食品中微量碘的测定 ,结果满意。
In this paper, a new kinetic-spectrophotometric method for the determination of trace amount of iodine has been proposed. It is based on the iodine catalysed the reaction of malachite green oxidized by chloramine T in hydrochloric acid medium. The method is sensitive, simple and with good selectivity. The linear range of determination of iodine is 0-48 mug-L-1, the detection limit is 4.9 X 10(-10) g.mL(-1). The method has been used for the determination of trace amount of iodine in food with satisfactory results.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2001年第5期726-728,共3页
Spectroscopy and Spectral Analysis
