摘要
建立了一种测定交警头发中痕量铅的新方法。研究了在T w een-80存在下,铅与非水溶性试剂meso-四(4-氯苯基)卟啉的显色反应条件,提出了一个高灵敏度测定铅的分光光度法。络合物的最大吸收波长为466nm,组成摩尔比为1∶1,铅含量在0—6Lg/10mL范围内有较好的线性关系,表观摩尔吸光系数为1.74×105L·mol-1·cm-1,并将其应用于交警头发中痕量铅的测定。
This article establishes a determination of traffic police in the hair of a new method of traces of lead. It describes a chromogenic reaction of Pb （ Ⅱ ） with T （4-CIP）P in the presence of Tween-80. A highly sensitive and selective method for the determination of Pb （ Ⅱ ） has been developed. The Sorer band of the complex lies at 466nm. Beer＇s law is obeyed for lead in the range of 0-6μg/10mL. The molar ratio of complex is 1 ： 1 ,apparent molar absorptivity is 1.74×105L·mol-1·cm^-1. Results of the Dezhou City traffic content of lead in hair is much higher than that of the normal human.
出处
《光谱实验室》
CAS
2013年第6期2855-2857,共3页
Chinese Journal of Spectroscopy Laboratory
关键词
铅
卟啉
分光光度法
Lead
Porphyrin
Spectrophotometry
