食品研究与开发
食品研究與開髮
식품연구여개발
FOOD RESEARCH AND CEVELOPMENT
2014年
19期
95-97,132
,共4页
食品%铝%超声波提取%快速检测%方法
食品%鋁%超聲波提取%快速檢測%方法
식품%려%초성파제취%쾌속검측%방법
food%aluminum%ultrasonic extraction%rapid detection%method
研究了面制食品中铝含量的快速检测方法。根据实验特点，样品经超声波提取后，三价铝离子、溴代十六烷基吡啶、聚乙二醇辛基苯醚在乙二胺-盐酸缓冲溶液中与铬天青S反应形成蓝色四元混合胶束，该混合胶束物的最大吸收波长为620 nm，其吸光度与铝的含量在0～0.5μg/2.5 mL浓度范围内呈良好线性关系.相关系数r=0.9994，精密度以其相对标准偏差RSD来估计，RSD为2.03%，重复性以其RSD来估计，RSD为1.72%，回收率在82.08%～97.02%；国际通用方法是湿法消解，该法消解液中会残留一定量的HClO4，造成灵敏度低、空白值高、显色反应性差等弊端。本文采用超声波提取法，操作简单，所需试剂少，绿色环保，减小了强酸给人体带来的损害，且重现性好，灵敏度高。因此，超声波提取法在面制食品中铝含量的快速检测方面具有较好的应用前景。
研究瞭麵製食品中鋁含量的快速檢測方法。根據實驗特點，樣品經超聲波提取後，三價鋁離子、溴代十六烷基吡啶、聚乙二醇辛基苯醚在乙二胺-鹽痠緩遲溶液中與鉻天青S反應形成藍色四元混閤膠束，該混閤膠束物的最大吸收波長為620 nm，其吸光度與鋁的含量在0～0.5μg/2.5 mL濃度範圍內呈良好線性關繫.相關繫數r=0.9994，精密度以其相對標準偏差RSD來估計，RSD為2.03%，重複性以其RSD來估計，RSD為1.72%，迴收率在82.08%～97.02%；國際通用方法是濕法消解，該法消解液中會殘留一定量的HClO4，造成靈敏度低、空白值高、顯色反應性差等弊耑。本文採用超聲波提取法，操作簡單，所需試劑少，綠色環保，減小瞭彊痠給人體帶來的損害，且重現性好，靈敏度高。因此，超聲波提取法在麵製食品中鋁含量的快速檢測方麵具有較好的應用前景。
연구료면제식품중려함량적쾌속검측방법。근거실험특점，양품경초성파제취후，삼개려리자、추대십륙완기필정、취을이순신기분미재을이알-염산완충용액중여락천청S반응형성람색사원혼합효속，해혼합효속물적최대흡수파장위620 nm，기흡광도여려적함량재0～0.5μg/2.5 mL농도범위내정량호선성관계.상관계수r=0.9994，정밀도이기상대표준편차RSD래고계，RSD위2.03%，중복성이기RSD래고계，RSD위1.72%，회수솔재82.08%～97.02%；국제통용방법시습법소해，해법소해액중회잔류일정량적HClO4，조성령민도저、공백치고、현색반응성차등폐단。본문채용초성파제취법，조작간단，소수시제소，록색배보，감소료강산급인체대래적손해，차중현성호，령민도고。인차，초성파제취법재면제식품중려함량적쾌속검측방면구유교호적응용전경。
This paper developed the content of aluminum in flour products for rapid detection method. According to the experimental characteristics ,the sample by ultrasonic extraction, Trivalent aluminum ion, cetylpyridinium bromide, polyethlene glycol mono-(P) octyl phengl ether (OP), ether in ethylenediamine-HCl buffer solution with chromazurol S react to form a blue quaternion-association. The mixed micelles maximum absorption wavelength is 620 nm. The absorbance with aluminum content in the range of 0-0.5 μg/2.5 mL concentration showed a good linear relationship. Correlation coefficient r = 0.999 4. Precision and repeatability have been estimated by the relative standard deviation (RSD), RSD is 2.03%and 1.72%respectively, and the recovery was in the range of 82.08%-97.02%. International common method was to wet digestion, this method will be left a certain amount of HClO4 in digestion solution, resulting in low sensitivity, the blank value was high, and poor color reaction drawbacks. However, using ultrasonic extraction, this method was applied to detect the content of simple operation, less reagent was added, green, reduced the acid to human body harm, and demonstrated favorable sensitivity, high selectivity and excellent reproducibility. As a conclusion, this method is promising for use in many applications of aluminum content in flour products.
