高效液相色谱法测定食品中铝元素的含量
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摘要
目的建立食品中铝的高效液相色谱含量测定方法,测定瓜子中铝的含量.方法铝与8-羟基喹啉的衍生物具有荧光吸收,可在高效液相色谱仪的荧光检测器上检测.以明矾标准品外标法建立标准曲线,从而计算瓜子中铝的含量.结果高效液相色谱法测定铝元素含量的精密度(0.541%)、重复性(0.437%)、稳定性(0.550%)的RSD值均小于1%,且其加标回收率良好.同时检测过程中挑选的真心瓜子,洽洽瓜子及散装瓜子2均未检出铝成分,而散装瓜子1中铝的含量则超出国家标准.结论采用高效液相色谱法分析并测定瓜子中铝的含量准确且易操作,为食品中铝元素含量测定提供有效的检测方法.
Objective To develop a method for determination of aluminum in food by high performance liquid chromatography,especially determinating the content of aluminum in melon seeds. Methods Both the aluminum and the derivatives of 8-hydroxyquinolone have fluorescence absorption which can be detected though the high performance liquid chromatography. In order to calculate the content of melon seeds,we established a standard curve based on alum standard.Results The RSD of the precision(0. 541%),repeatability(0. 437%) and stability(0. 550%) is less than 1%,and the tagged recoveries are well. Conclusions This method is accurate and simple,it provides an efficient method for determination of aluminum in food.
Objective To develop a method for determination of aluminum in food by high performance liquid chromatography,especially determinating the content of aluminum in melon seeds. Methods Both the aluminum and the derivatives of 8-hydroxyquinolone have fluorescence absorption which can be detected though the high performance liquid chromatography. In order to calculate the content of melon seeds,we established a standard curve based on alum standard.Results The RSD of the precision(0. 541%),repeatability(0. 437%) and stability(0. 550%) is less than 1%,and the tagged recoveries are well. Conclusions This method is accurate and simple,it provides an efficient method for determination of aluminum in food.
引文
[1]王红,张兰天.食品中铝含量检测方法的研究[J].食品工业,2012(11):191-194.
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[7]李群.高铝食品中铝含量的检测方法[J].粮食流通技术,2017,2(3):89-92.
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[10]马翛然,高丽华,安薪憬,等.食品中铝元素的测定方法[J].中国酿造,2015,34(12):5-9.
[2]史晓红,王红乐.食品中铝含量测定方法研究[J].现代商贸工业,2015,36(16):221-222.
[3]张华,孟云彩.坚果及炒货食品中铝的检测方法研究[J].现代仪器与医疗,2013,19(3):65-67.
[4]马森.南平地区若干食品和饮水中铝含量的检测[J].武夷学院学报,2007,26(2):30-32.
[5]曹利慧.食品中铝含量测定方法的研究进展[J].河南科技,2012(22):105
[6]曹艳秋,张瑞.浅析加强食品铝残留量检验的重要性和对检验方法修改意见[J].商场现代化,2013(21):50.
[7]李群.高铝食品中铝含量的检测方法[J].粮食流通技术,2017,2(3):89-92.
[8]周红亮,荣晓夙,庹见伟.食品中重金属检验新方法[J].食品安全导刊,2016(12X).
[9]韩健.食品中铝的检测及对人体的危害[J].食品安全导刊,2016(21):76.
[10]马翛然,高丽华,安薪憬,等.食品中铝元素的测定方法[J].中国酿造,2015,34(12):5-9.