| 分光光度法测定水发产品中甲醛 |
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| 引用本文： | 杨晓凤,罗玲,张义蓉.分光光度法测定水发产品中甲醛[J].西南农业学报,2008,21(5). |
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| 作者姓名： | 杨晓凤 罗玲 张义蓉 |
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| 作者单位： | 四川省农业科学院分析测试中心,四川成都,610066 |
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| 摘 要： | 在磷酸酸性条件下,用凯氏定氮仪代替传统的蒸馏装置对样品进行蒸馏,吸收液中的甲醛与乙酰丙酮作用生成稳定的黄色化合物,在波长435 nm处进行比色定量。用该法测定水发产品中的甲醛含量,测定的相对标准偏差≤2.31%(n=5),回收率为95.9%~101.0%,结果满意。
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| 关 键 词： | 光度法 甲醛 乙酰丙酮 水产食品 |
Photometric determination of formaldehyde content in waterishlogged product |
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| YANG Xiao-feng,LUO Ling,ZHANG Yi-rong.Photometric determination of formaldehyde content in waterishlogged product[J].Southwest China Journal of Agricultural Sciences,2008,21(5). |
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| Authors: | YANG Xiao-feng LUO Ling ZHANG Yi-rong |
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| Abstract: | Formaldehyde product was distilled using by distillation unit and an aliquot of the distillate was treated with acetylacetone to form a stable yellow colored compound which had its absorption maxima at 435 nm.It was successfully applied in the determination of formaldehyde content in waterishlogged product. |
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| Keywords: | spectrophotometry formaldehyde acetylacetone waterishlogged product |
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