香加皮中杠柳毒甙的紫外光谱分析方法  

Research of Analytic Method UV on Glycoside G

作　　者：贾素云[1] 牛军玲[1] 夏寅寅[1] 张丽萍[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《山西化工》2006年第3期34-35,共2页Shanxi Chemical Industry

摘　　要：以70%的乙醇为提取剂,从香加皮中提取出杠柳毒甙。采用紫外光谱法,在波长为278 nm处测定杠柳毒甙的含量,提取液质量浓度在0.5×10-2mg/mL^4.0×10-2mg/mL,具有良好的线性关系。该方法快速、简便、易行,与原重量法相比,测定偏差在5%以内,成功地解决了植物农药工艺过程中的分析难题。A rapid and simple spectrophotcxnetry method was proposed for the determination of glycoside G. By testing different dissolvents＇s absorption curves of eortex periplocae, an absorption peak in 278 nm was found using 70% aleohol as the dissolvent. The method based on the absorption peak of glycoside G at 278 nm had a linear range of 0.5×10^-2mg/mL～4.0×10^-2mg/mL （γ = 0.98）. Compared with Gravimetry, the deviation was less than 5 %. A difficult problem on plant pesticide was suceessfully solved.

关 键 词：分光光度法 香加皮 杠柳毒甙 

分 类 号：S482[农业科学—农药学] O657.32[农业科学—植物保护]