摘要
在β-环糊精和曲拉通X-100联合作用于5-Br-PADAP显色体系时，采用分光光度法测定人发中的锌。配合物的最大吸收波长为564nm，表观摩尔吸光系数为1．18×10^5L／（mol·cm），锌含量在0～24μg/（25mL）范围内服从比耳定律。测定结果的相对标准偏差为1．1％（n=5），加标回收率为98．0％-102．0％。
Based on the colour reaction of Zn^＋5-Br-PADAP system, in the presence of β-CD and Triton X-100, zinc in hair was determined by spetrophotometry. The maximum absorbance was at 564 nm with apparent molar absorption of 1.18 × 10^5 L / （mol·cm）. The beer＇s law was obeyed in the range of 0 -24 μg/（25mL）. The RSD was 1. 1% （n = 5 ） , and recoveries were 98.0% - 102%.
出处
《化学分析计量》
CAS
2006年第5期43-44,共2页
Chemical Analysis And Meterage
关键词
锌
Β-环糊精
分光光度法
zinc,β-cyclodextrin, spectrophotometry
