| 食品包装材料中甲醛的极谱快速测定 |
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| 引用本文： | 张文德,孙仕萍,马志东,郭忠. 食品包装材料中甲醛的极谱快速测定[J]. 卫生研究, 2003, 32(4): 391-393 |
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| 作者姓名： | 张文德 孙仕萍 马志东 郭忠 |
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| 作者单位： | 河北省唐山市疾病预防控制中心,唐山,063000 |
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| 摘 要： | 研究发现在 0 0 1mol LH3 PO4底液中 ,甲醛与盐酸苯肼反应 ,生成的醛腙衍生物在峰电位Ep 0 76V(vs .SCE)处产生一个极为灵敏的二阶导数还原波 ,探讨该反应的最佳分析条件及共存物质的影响 ,并与国标法(盐酸苯肼比色法、变色酸比色法 )进行了对比。结果 ,本法线性范围为 0 0 0 5～ 0 2 5mg L ,检出限为0 0 0 5mg L。经实验样品分析 ,本法回收率为 92 3 %～ 1 0 4 6 % ,相对标准偏差为 1 1 %～ 3 0 % ,与国标法的结果均无显著性差异 (P >0 0 5)。
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| 关 键 词： | 甲醛 盐酸苯肼 单扫描示波极谱法 食品包装材料 |
| 文章编号： | 1000-8020(2003)04-0391-03 |
| 修稿时间： | 2002-08-14 |
Rapid determination of formaldehyde in food packaging material by oscilloscopic polarography |
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| Zhang Wende,Sun Shiping,Ma Zhidong,Guo Zhong Tangshan Center for Disease Prevention and Control,Tangshan ,China. Rapid determination of formaldehyde in food packaging material by oscilloscopic polarography[J]. Journal of hygiene research, 2003, 32(4): 391-393 |
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| Authors: | Zhang Wende Sun Shiping Ma Zhidong Guo Zhong Tangshan Center for Disease Prevention Control Tangshan China |
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| Affiliation: | Tangshan Center for Disease Prevention and Control, Tangshan 063000, China. |
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| Abstract: | The polarographic behavior of the reaction product of formaldehyde and phenyldrazine hydrochloride on the drop mercury electrode was investigated in a medium of 0 01mol/L H 3PO 4 and sensitive second order polarographic reduction wave was obtained at -0 76V(vs.SCE). The optimum conditions and disturbance of other co existing substances were also studied, and were compared with those of national standard method. In the study, the detectable range, detection limit, recovery rate, relative standard deviation(RSD) of the improved method were 0 005-0 25mg/L, 0 005mg/L, 92 3%-104 6%, 1 1%-3 0% respectively, revealing the accordance with the national standard method. |
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| Keywords: | formaldehyde phenylhydrazine hydrochloride oscilloscopic polarography food packaging material |
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