The silver diethyl dithiocarbamate ( Ag-DDC) and the new silver salt spectrophotometry were used to determine arsenic in thirteen kinds of Guangdong native herbs. And then comparing the results with relevant standards to find out the arsenic content level in Guangdong native herbs. 本文采用Ag-DDC分光光度法和新银盐法对广东地产13种中药材的砷含量进行测定,参考相关的限量标准,了解广东地产中药材砷的含量情况。
The Discovery of Spherulitic Native Arsenic in Mercury Ore 汞矿石中球粒状自然砷的发现