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果蔬中仲丁胺残留检测衍生条件研究 被引量:2

Study on the condition for 2-aminobutance derivation dur- ing its quantification in fruit and vegetables
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摘要 以2,4-二硝基氟苯(DNFB)为衍生剂,与仲丁胺反应生成N-仲丁基-2,4-二硝基苯胺(BDNA),采用分光光度法检测果品蔬策中仲丁胺残留量。通过对衍生产物波长扫描、衍生产物的稳定性、衍生剂用量、缓冲液pH和用量、以及衍生时间和温度的研究,确定衍生反应的最佳条件,并通过正交实验进行技术优化。实验结果表明,衍生产物在332nm处有最大吸收峰,DNFB的最佳用量为2.5mL,硼酸盐缓冲液最适pH为8.8,最佳衍生反应温度为60℃,时间为20min。 The condition for the derivative reaction between DNF8 and 8DNA was studied for determination of 2 -aminobutance residue in fruit and vegetables. Results show that the absorbing peak of derivative products located in 332nm, the optimum pH value of buffer solution is 8.8, the optimum temperature and duration for the reaction are 60℃ for 20min.
出处 《食品工业科技》 CAS CSCD 北大核心 2005年第8期168-170,共3页 Science and Technology of Food Industry
基金 农业部农业行业标准制订资助项目(04137)
关键词 仲丁胺 残留 检测 衍生条件 2 -aminobutance residue determination derivative condition.
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参考文献7

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同被引文献23

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