流动注射化学发光法测定青霉素G钾  

Determination of potassium penicillin G by flow injection analysis with chemiluminescence detection

作　　者：张志娟[1] 范荣亮[2] 

机构地区：[1]贵州大学化学工程学院,贵阳550003 [2]贵州大学资源与环境工程学院,贵阳550003

出　　处：《分析试验室》2007年第4期97-99,共3页Chinese Journal of Analysis Laboratory

摘　　要：在甲醛的存在下,酸性KMnO4与青霉素G钾能够产生很强的化学发光,从而建立了KMnO4-甲醛-青霉素G钾化学发光体系来测定青霉素G钾。青霉素G钾的测定线性范围为2.0×10-7～1.0×10-5g/mL,方法的检出限为1.4×10-7g/mL,对4.0×10-7g/mL的青霉素G钾进行11次平行测定,相对标准偏差为1.0%,用此法测定青霉素G钾取得了较好的结果。　In the presence of formaldehyde,acidic potassium permanganate and potassium penicillin G could produce strong chemiluminescence,so the chemiluminescent system of potassium permanganate-formaldehyde-potassium penicillin G was built.The linear range was 2.0×10^-7～1.0×10^-5 g/mL,the detection limit was 1.4×10^-7 g/mL,the relative standard deviation （RSD） for the determination of 4.0×10^-7 g/mL potassium penicillin G is 1.0%.This method was applied to the determination of potassium penicillin G with satisfactory results.

关 键 词：流动注射 化学发光 青霉素G钾 KMNO4 甲醛 

分 类 号：O657.3[理学—分析化学]