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| 柑桔中DMF残留量测定方法的研究 | |
| 引用本文： | 鲁雁飞. 柑桔中DMF残留量测定方法的研究[J]. 卫生研究, 1992, 21(3): 145-148 |
| 作者姓名： | 鲁雁飞 |
| 作者单位： | 中国预防医学科学院劳动卫生与职业病研究所 北京 |
| 摘 要： | 本文介绍了新型防腐剂DMF(富马酸二甲酯)在柑桔中残留量的气相色谱测定方法。柑桔中的DMF用二氯甲烷提取,柱层析分离净化后,经HP-1柱分离,FID检测。本方法的最低检出限为0.018g/3L。 |
| 关 键 词： | 富马酸二甲酯 气相色谱法 残留量 杀菌剂 |
Determination of DMF Residue in Citrus Fruits |
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| Lu Yan-fei. Determination of DMF Residue in Citrus Fruits[J]. Journal of hygiene research, 1992, 21(3): 145-148 | |
| Authors: | Lu Yan-fei |
| Abstract: | A gas chromatographic method has been developed for the determination of DMF(dimethyl fumarate)residue in citrus fruits. The procedure is as follows: DMF in citrus fruits sample was extracted with CH_2Cl_2 and the extract was evaporated to 1.0ml or less. The solution was cleaned up through a silica gel column, and then, DMF in the extract was determined by GC with FID and linear temperature programmer. The extract was separated by HP-1 column(10m×0.53mm×2.65μm). The retention time and the peak area were used for qualitative and quantitative determination, respectively. The detection limit of DMF was 0.018μg/3μl. The recoveries were 62.8%～69.4%. The coefficients of variation were 6.4%～9.7%. |
| Keywords: | dimethyl fumarate gas chromatography residue fungicide |
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