| 第 40 卷第 6 期 |  | Vol. 40 No. 6 | | 2010 年 12 月 | Dec 2010 |
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所屬欄目：分析與測試
3，4-二甲氧基苯乙腈及其雜質(zhì)的氣相色譜分析 |
| 王樹(shù)娟，李 嬌，李 偉，范志先*
（青島科技大學(xué) 化工學(xué)院，山東 青島 266042） |
| 摘 要：采用GC-FID，采用內標法測定了3，4-二甲氧基苯乙腈含量，外標法測定了雜質(zhì)鄰苯二酚、藜蘆醇含量，對3，4-二甲氧基苯乙腈、鄰苯二酚和藜蘆醇的色譜分離條件進(jìn)行了優(yōu)化。3，4-二甲氧基苯乙腈的添加平均回收率為99.8% ~100.1%，RSD 0.96 %，準確度和精密度均能滿(mǎn)足常量分析的要求；鄰苯二酚和藜蘆醇的檢出限分別為100 mg／kg和50 mg／kg。 |
| 關(guān)鍵詞：3，4-二甲氧基苯乙腈；GC-FID；鄰苯二酚；藜蘆醇；內標法；外標法 |
| 中圖分類(lèi)號：TQ246.7 文獻標識碼：B 文章編號：1009-9212（2010）06-0067-03 |
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| Determination of 3，4-Dimethoxy Phenyl Acetonitrile and the Impurities by Gas Chromatography |
| WANG Shu-juan，LI Jiao，LI Wei，FAN Zhi-xian*
（College of Chemical Engineering，Qingdao University of Science and Technology，Qingdao 266042，China） |
| Abstract：An internal standard method were studied for quantitative analysis of 3，4-dimethoxy phenyl acetonitrile by GC-FID，and an external standard method for quantitatively determinate the impurities pyrocatechol and veratryl alcohol. The average recovery of 3，4-dimethoxy phenyl acetonitrile was 99.8~100.1%，and RSD was 0.96%. The accuracy and precision could meet the requirements of constant analysis. The chromatographic conditions of 3，4-dimethoxy phenyl acetonitrile，pyrocatechol and veratryl alcohol were defined. The LOD of pyrocatechol and veratryl alcohol was 100 mg／kg and 50 mg／kg，respectively. |
| Key words：3，4-dimethoxy phenyl acetonitrile；GC-FID；pyrocatechol；veratryl alcohol；internal standard method；external standard method |
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作者簡(jiǎn)介：王樹(shù)娟（1983―），女，山東濰坊人，碩士研究生。主要從事化工分析。（E-mail：focus-wang@163.com）
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聯(lián) 系 人：范志先（1957-），男，教授,博士。
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收稿日期： 2011-01-1
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