井冈山大学学报（自然科学版）Issue(6)：21-24,4.DOI:10.3969/j.issn.1674-8085.2013.06.005
浊点萃取-石墨炉原子吸收光谱法测定药物胶囊中的痕量铬（VI）
DETERMINATION OF CHROMIUM(VI) IN DRUG CAPSULES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY AFTER CLOUD POINT EXTRACTION
摘要
Abstract
A method was developed for determining trace Cr(VI) and total chromium in drug capsules by graphite furnace atomic absorption spectrometry after cloud point extraction with Cupferron and ammonium pyrrolidine dithiocarbamate(APDC) as complexing agent, triton X-114 as surfactant. The main factors affecting the cloud point extraction, such as pH, concentrations of APDC, Cupferron and Triton X-114, equilibrium temperature and time were studied. Under the optimal conditions, the detection limit of Cr(VI) is 0.031μg/L (S/N=3) with RSD of 1.2% and recovery rate of 98.4% to 102.1%. It is satisfactory to apply the method to the determine trace Chromium in drug capsules samples.关键词
药物胶囊/铬/浊点萃取/石墨炉原子吸收光谱法Key words
drug capsules/Cr/cloud point extraction/graphite furnace atomic absorption spectrometry分类
化学化工引用本文复制引用
杨平,陈为键,陈婷,温茂云,陈春凤..浊点萃取-石墨炉原子吸收光谱法测定药物胶囊中的痕量铬（VI）[J].井冈山大学学报（自然科学版）,2013,(6):21-24,4.基金项目
“福建省一般本科院校办学水平提升计划”建设项目（闽教高〔2012〕160号）；“闽江学院大学生创新创业训练计划”项目 （）
