O／W微乳液介质中冬虫夏草微量锌的分光光度分析

Spectrophotometric Determination of Trace of Zinc in Cordyceps in O/W Microemulsion Medium

本文研究了以十二烷基硫酸钠－正丁醇－正庚烷－水组成的负离子型Ｏ／Ｗ微乳液为介质，以１－（２－吡啶偶氮）－２－萘酚为显色剂，用分光光度法直接测定冬虫夏草中微量锌含量。方法灵敏、准确、简便。对微乳液在中药有效成分分析方面的应用进行了有益的尝试。

A sensitive, accurate and simple spectrophotometric method for the determination of trace of zinc in cordyceps was reported in the sodium dodecyl sulphate/n-butanol/n-heptane/water microemulsion medium (water content of 85%) . The color reagent was 1- (2-pyridylazo)-2-naphthol (PAN) .