摘要
铜与新铜试剂和曙红Y形成有色缔合络合物。在氯仿中当λ=544nm时,络合物的表观摩尔吸光系数ε=6.83×10~4Imol^(-1)cm^(-1)。我们运用这一体系对某些中药和中药针剂中微量铜的含量进行测定。本法简便,灵敏度高,选择性好。
Cu reacts with neo-cuproin and eosin Y to form a coloured associated complex. In chloroform its apparent E value is 6.83×10~4 1 mol^(-1) cm^(-1) at λ=544nm. We used this system to determine the contents of trace copper in some tablets and injections of Chinese medicine. This method is simple, highly sensitive and selective.
出处
《中国中药杂志》
CAS
CSCD
北大核心
1989年第2期23-24,共2页
China Journal of Chinese Materia Medica
关键词
中药
针剂
铜
萃取光度法
饮片
injections of Chinese medicine
copper
extraction-spectrophotometric mthod
