| 盐析效应结合顶空气相色谱质谱法测定香精香料中甲醇含量 |
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| 引用本文： | 康世平,孙赵麟,张凤霞,张萌萌,樊亚玲.盐析效应结合顶空气相色谱质谱法测定香精香料中甲醇含量[J].分析测试技术与仪器,2018(2):86-90. |
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| 作者姓名： | 康世平 孙赵麟 张凤霞 张萌萌 樊亚玲 |
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| 作者单位： | 陕西中烟工业有限责任公司技术中心 |
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| 摘 要： | 利用盐析效应结合顶空-气相色谱/质谱联用仪,建立了一种快速、准确检测香精香料中甲醇含量的方法.方法以5 mol/L NaCl溶液为顶空基质校正剂,试验得线性范围为0.8~200 ng/mL(r~2=0.999 9,n=6),检出限为0.25ng/mL,定量限为0.84 ng/mL,日内精密度1.8%,日间精密度4.2%,样品加标回收率为96.51%~114.98%.测得随机抽取的10个含有香精香料样品中甲醇的质量浓度在0.0~8.4 ng/mL之间.方法无需前处理,灵敏度高,选择性好,定性准确,适用于香精香料中甲醇含量的测定.
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| 关 键 词： | 盐析效应 甲醇 顶空-气相色谱/质谱 香精香料 |
| 收稿时间： | 2018/3/26 0:00:00 |
| 修稿时间： | 2018/5/21 0:00:00 |
Determination of Methanol in Essence and Perfume by Headspace-Gas Chromatography/Mass Spectrometry with Salting-Out Effect |
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| KANG Shi-ping,SUN Zhao-lin,ZHANG Feng-xi,ZHANG Meng-meng and FAN Ya-ling.Determination of Methanol in Essence and Perfume by Headspace-Gas Chromatography/Mass Spectrometry with Salting-Out Effect[J].Analysis and Testing Technology and Instruments,2018(2):86-90. |
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| Authors: | KANG Shi-ping SUN Zhao-lin ZHANG Feng-xi ZHANG Meng-meng and FAN Ya-ling |
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| Institution: | Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi China,Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi China,Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi China,Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi China and Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi China |
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| Abstract: | A rapid headspace-gas chromatography/mass(HP-GC/MS)spectrometric method was developed for the determination of methanol in essence and perfume using the salting-out effect. The experimental conditions were optimized. The linear range was from 0.8 ng/mL to 200 ng/mL (r2=0.999 9, n=6) with a detection limit of 0.25 ng/mL in 5 mol/L NaCl. The recovery ratio of the method was 96.75%~106.35%. The contents of methanol were 0.0~8.4 ng/mL in 10 samples by the developed method. The method is of high sensibility and selectivity and no sample pretreatment is needed. |
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| Keywords: | salting-out effect methanol HP-GC/MS fragrance and flavor |
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