第二阶段使用气质联用对可疑样本进一步检测；
In the second phase, GC-MS is employed for further testing of those suspicious samples.
TBA法、碘值、氧化指数和气质联用分析法进行鉴定。
TBA, iodometric method, oxidative index and gas liquid chromatography.
产品纯度和结构由气相色谱、气质联用仪及核磁共振仪确定。
The purity and structure of the product was examined by GC GC-MS and NMR.
借助气质联用仪，对苦楝粗多糖和组分mp1进行了成分分析。
The compositions of polysaccharide from Melia azedarach fruit and MP1 were also determined and quantified by GC-MS and IR spectrum.
采用同时蒸馏法提取并用气质联用检测绍兴霉干菜中挥发性香气成分。
Volatile oil of Shaoxing black dried pickle was obtained by simultaneous distillation-extraction (SDE) and analyzed for chemical constituents by GC-MS.
产品经色谱、红外、质谱及气质联用证实，最终的加氢产品为2-庚酮。
The ultimate product was proved to be 2-heptanone by IR, GC, MS and GC associate with MS.
方法：利用GC-MS气质联用仪对香附炮制前后的挥发油进行成分分析。
Methods: GC-MS machine was used to analyze the chemical composition in volatile oils.
以气质联用对化学组分进行分离和鉴定，通过标准图谱对照确定化合物名称。
The components were separated and identified by gas chromatography mass spectrometry and elucidated on the standard mass spectral data.
采用同位素稀释-高分辨气质联用技术对京杭运河杭州市区段表层沉积物中二恶的分布进行研究。
The PCDD/Fs in surface sediments of Great Canal in Hangzhou city were analyzed by isotope Dilution HRGC/HRMS method.
目的建立一种高效实用快速的工作场所空气中丙烯酸甲酯等6种有害物质气质联用同时测定方法。
Objective To establish a efficient, applicable, rapid method for determination of 2- Propenoic acid methyl ester etc 6 kinds of hazardous substance in air of workplace at one time.
针对疑似含有甲缩醛的车用汽油样品，常见分析方法有红外光谱法，气质联用法，多维气相色谱法。
For suspected of containing methylal car with gasoline samples, the common analysis methods with infrared spectroscopy, temperament spectrometry, multidimensional gas chromatography.
以42日龄AA肉鸡的胸肉为样品，采用固相微萃取气质联用法分析了AA肉鸡的挥发性香气成分。
Volatile flavour compounds in the breast meat of 42-day-old AA chicken were analyzed by headspace solid phase microextraction(HS-SPME) combined with GC/MS method.
该文叙述了黄酒香味的来源，采用气质联用法对黄酒香味进行了分析研究，鉴定了其中一些香味物质组分。
The paper presented the origin of rice wine flavor, analyzed and studied the aroma of rice wine by the method of GS-MS analysis, and determined some aroma compositions.
以黄豆、亚麻籽、棉籽为例，利用气质联用色谱法分析其脂肪酸的组成及含量，并着重讨论其中必须脂肪酸的含量。
The component and content of fatty acids in fermented soybean, flaxseed, and cottonseed were analyzed by GC-MS. Especially, the essential fatty acid was emphasized.
论文选择目前暂无研究的塑料包装西式火腿作为研究对象，采用气质联用法对火腿中的邻苯二甲酸酯类增塑剂进行定性定量分析。
No research paper has chosen the plastic packaging Ham for the study, using GC on the ham phthalate plasticizers qualitative and quantitative analysis.
方法：采用水蒸气蒸馏法和气质联用技术对新疆引种玛咖中的挥发油成分进行分析，并研究提取时间、缓冲液浓度对玛咖挥发油主成分的影响。
Methods:Essential oil was extracted from Xinjiang maca by steam distillation, and then was subjected to chemical component analysis by gas chromatography-mass spectrometry(GC-MS).
采用同时蒸馏萃取的方法提取新鲜洋葱、真空冷冻干燥洋葱和热风干燥洋葱的挥发性成分，并经气质联用分析，分别析出36、33、27种物质。
Volatile components of fresh onion, vacuum freeze-drying onion and hot-air drying onion were obtained by simultaneous distillation-extraction(SDE), 36,33,27substances were analyzed by GC-MS.
以46种白酒为样本，以每个样本的乙酸乙酯、己酸乙酯等17种香味成分的气相色谱、气质联用定性定量分析数据和感官评价结果为指标，用聚类分析研究了白酒香型数据。
Based on the data of 17 flavor components in 46 samples that were obtained by GC, GC-MS and sensory evaluation the cluster analysis was used in the aroma recognition of the samples.
以46种白酒为样本，以每个样本的乙酸乙酯、己酸乙酯等17种香味成分的气相色谱、气质联用定性定量分析数据和感官评价结果为指标，用聚类分析研究了白酒香型数据。
Based on the data of 17 flavor components in 46 samples that were obtained by GC, GC-MS and sensory evaluation the cluster analysis was used in the aroma recognition of the samples.
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