韓寧娟,杜 瑋,常 春,傅 強*
(1.西安交通大學藥學院,西安 710061;2.西安培華學院,西安 710125)
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·藥物分析·
食品中β2受體激動劑快速檢測方法的建立與應用
韓寧娟1,2,杜 瑋1,常 春1,傅 強1*
(1.西安交通大學藥學院,西安 710061;2.西安培華學院,西安 710125)
目的 以4種β2受體激動劑為研究對象,建立薄層色譜法用于食品中非法添加的鹽酸克倫特羅、萊克多巴胺、沙丁胺醇和硫酸特布他林現場快速檢測。方法 考察不同固定相與展開劑,不同檢測方式對食品中β2受體激動劑薄層色譜行為的影響并進行方法學驗證。結果 以硅膠HPGF254為薄層色譜的固定相,以異丙醇-環己烷-甲酸(13∶10∶1)為展開劑,碘蒸氣熏蒸后,在紫外光燈254 nm下檢測4種β2受體激動劑鑒別特征明顯,內源性物質無干擾。結論 該方法靈敏度高,專屬性強,操作簡單,結果準確,可快速檢測出食品中非法添加的鹽酸克倫特羅、萊克多巴胺、沙丁胺醇和硫酸特布他林4種β2受體激動劑。
β2受體激動劑;快速分析;薄層色譜法
A.stract:Objective To develop a TLC method for rapid detection of 4 kinds ofβ2agonists illegal additives (clenbuterol hydrochloride,ractopamine,salbutamol,and terbutaline sulfate) in food. Methods The TLC conditions, such as the stationary phase, the mobile phase and the different detection methods were investigated. And the established TLC method was validated for the real sample analysis. Results The optimal conditions were as follows: high performance silica gel HPGF254as the stationary phase, alcohol-cyclohexane-formic acid (13∶10∶1) as the mobile phase. After developed and colorized with iodine vapor,the coloration spots of the 4 kinds ofβ2agonists were obvious and no internal interference was observed under 254 nm wavelength. The developed method was sensitive and specific. Conclusion The established method is simple and accurate, and could be used for the rapid detection of the 4 kinds ofβ2agonists in food.
β2受體激動劑是一類結構和功能都類似腎上腺素的苯乙胺類衍生物[1],臨床上可用于擴張支氣管和增加肺通氣量,治療支氣管哮喘、平滑肌痙攣和休克等癥[2],具有脂肪再分配作用。然而,不法商販將其添加于喂養動物的飼料中,以提高瘦肉產率,從中牟取暴利,這類肉制品或內臟被人食用后會在體內蓄積,產生心悸、四肢肌肉顫動、心律失常等不良反應[3]。因此,建立食品中這4種β2受體激動劑的檢測方法具有重要意義。
目前,有文獻報道檢測食品……