Ex Lind1. Methods: The chemical compositions of volatile oil of the plant which were obtained by steam distillation with hexane were analyzed by GC-MS equipped with a elastic quartz capillary column-HP-5MS5% Phenyl Methyl Siloxane (30 m× 0.25 mm ×0.25 μm).
利用有机溶剂-水蒸气蒸馏法提取挥发油，用气相色谱-质谱联用进行测定，色谱柱为HP-5MS5%Phenyl Methyl Siloxane(30m×0.25mm×0.25μm)弹性石英毛细管柱，结合计算机检索技术对分离的化合物进行结构鉴定，应用色谱峰面积归一化法计算各成分的相对百分含量。
By analyzing the GC-MS, author confirms three photolysis products: l-(2, 2-diethylhydrazino)-2-methylpropyl diazene, 2, 4-bis -6-methyl-s-triazine, 6-chloro-N-propyl-s-triazine, and discusses the process and mechanism of photolysis.
通过对阿特拉津光解产物的GC-MS鉴定与谱图解析确认了1-（2，2-二乙基联胺基）-2-异丁基二氮烯、2，4-二-6-甲基-均三嗪和6-氯-N-丙基-1，3，5-三嗪-2，4-二胺三种可能的光降解产物，进而对光解过程和机理进行了研究。
A new method for the quantification of volatile compounds in cider was developed using stir bar sorptive extraction followed by GC-MS.
研究了检测苹果酒中挥发性物质的一种新方法—搅拌棒吸附萃取气质联用技术。
Nopol was ozonized in methanol and ethanol respectively, followed by reductive hydrolyzation and GCMS analysis.
将诺卜醇分别在甲醇和乙醇中臭氧化后，再进行还原性水解，溶液经处理后进行了GC-MS分析。
The structures of 6 main products of ozonization of nopol were identified by GC-MS, and they are all four-ring compounds, the result suggests that the double bond, tertiary hydrogen can be oxidized, and there was other further oxidation.
通过GC-MS分析确定了6个诺卜醇臭氧化主要产物的结构，它们均为四元环类化合物，这表明诺卜醇臭氧化时碳碳双键、叔氢都会被氧化，还伴有其它更深层次的反应。
The method was based on the extraction of the herbicides residues with acetonitrile and a cleanup with a Florisil column followed by elution with a mixture of n-hexane and acetone (6:4 by volume) and GC-MS/SIM detection.
粮谷与油籽中二苯醚除草剂残留通过乙腈提取，浓缩后过弗罗里硅土柱净化，采用正己烷－丙酮（体积比6：4）溶液淋洗，淋洗液吹氮至干后以正己烷定容，GC-MS选择离子监测模式测定。
METHODS GC-MS was used to analyse the chemical constituents of the essential oil of Thymus quinquelostatus Celak.
采用气相色谱-质谱联用仪对五脉地椒全草挥发油化学成分进行了分析鉴定。
The chemical constituents of extracts of Tamarindus indica L were determined by GC-MS. The relative contents of constitutes were determined by area normalizing method. 48 compounds were identified, amounting to total mass fraction 98.5%. The main compounds were 5-methyl-2(3H)-furanone, diethyl succinate, furfural, hexadecanoic acid, linolenic acid, 5-methylfurfural, oleic acid, linoleic acid, etc.
并利用气相色谱仪-质谱仪对罗望子萃取物的化学组成进行了分析鉴定，并用面积归一化法测定了各种成分的质量分数，共鉴定了48种成分，占总质量分数为98.35%，其中主要成分为：5-甲基-2(3H)-呋喃酮、丁二酸二乙酯、糠醛、十六酸、亚麻酸、5-甲基糠醛、油酸、亚油酸等。
The analyses of groups, elements, and GC-MS on tar products are presented in the paper.
对热解焦油进行了族分分析、元素分析和GC-MS分析。
The fatty acids in the mixtures of 60% and 40%, 70% and 40%, 80% and 20% linseed oil with rapeseed oil were separated and identified by GC-MS.
利用GC-MS分析60%与40%，70%与30%、80%与20%三种不同配比胡麻油和菜籽油混合油脂肪酸组成。
Var aurantiacus Mak. MethodsThe essential oil was extracted by steam distillation and analyzed qualitatively and quantitatively by gas chromatography by GC-MS combined with chemometric resolution method.
方法采用水蒸气蒸馏法从丹桂中提取挥发油，利用GC-MS联用技术，结合化学计量学方法对其化学成分进行定性和定量分析。
The features of molecular structure of aromatics, resins and asphaltenes were investigated by ruthenium-ion-catalyzed oxidation, where involatile acid products were methylated with excess diazomethaneether and volatile acids were esterified with phenacyl bromide.
利用钌离子催化氧化方法对大港减压渣油芳香分、胶质和庚烷沥青质进行了选择性降解，通过GC、GC-MS等分析手段对降解反应产物中一元正构脂肪酸、α，ω-二元正构脂肪酸和苯二～六元羧酸的含量和分布分别进行了定量分析。
In this method, the conditions for extracting solvent, pH of the reaction environment and GC-MS were investigated and optimized.
通过对提取溶剂、酸度等预处理条件及GC-MS分析条件的优化，可以同时检测尼可刹米、利多卡因、苯巴比妥、安乃近、阿托品、异丙嗪、卡马西平、地西泮、氯丙嗪及氯氮平这10种常见的精神类药物。
Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO(superscript 2- subscript 4)/TiO2-ZrO2 solid superacid was investigated.
研究了SO(上标 2-下标 4)/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应，通过GC、GC-MS和红外分析，确定其主产物为4-（4-甲基－3-戊烯基）－4-环己烯-1，2-酸酐。
Synthesis and Structural Analysis of New Monoterpene Derivatives from β-myrcene; 2. Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO2-4/TiO2-ZrO2 solid superacid was investigated.
研究了SO42-/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应，通过GC、GC-MS和红外分析，确定其主产物为4-(4-甲基-3-戊烯基)-4-环己烯-1，2-酸酐。
Objective: To analyze the compounds of the oils from Swida wilsoniana`seeds with three methods by GC-MS.
目的：利用GC-MS分析了三种方法提取的光皮树籽油化学成分。
Different wavenumber ranges and spectrum preprocessing method were investigated according to the root mean squsre error of cross-validation values.
以交叉验证误差均方根为指标，确定各组分用于建模的最优近红外波段和光谱预处理方法，采用偏最小二乘算法建立近红外光谱与这三组分GC-MS分析值之间的校正模型，并以此预测了35个白粉样本。
GC-MS analysis suggests that the second part contains phenol sour and sulfur alcohol, which best suits further purification and identification.
GC-MS分析表明，鸭粪的抑菌物质主要为酚酸类和含硫醇有机物质，进一步纯化和鉴定有待研究。
By means of GC-MS-Ms method, the multiple series of age-related and taxon specific biomarkers are tested in source rocks and oil samples from Liaohe oilfield and Tarim basin, which are hard to be detected by conventional GC-MS method. They are steranes, methylsteranes, Tricyclic and tetracyclic diterpanes, methyl hopanoid alkanes and hexacyclic hopanoid alkanes, etc.
利用色谱－质普－质普方法在辽河与塔里木盆地源岩和原油样品中，检测出了多个系列时代相关及特定种属生物标志物，包括：降胆甾烷系列、甲基甾烷及甲藻甾烷系列、三环二萜烷及四环二萜烷系列、六环蒮烷及甲基藿烷系列等等，这些化合物很难用常规GC-MS形方法检测到。
The constituents of the essential oil of peppermint（Mentha piperita L.）from Ganquan/Linyou/Xinyi/Qianyang/ Kuyu /Shibianyu and Fengshan and so on different elevation areas in Shaanxi were analyzed by GC-MS, 38 kinds of compounds were respectively identified and quantified, which accounted for 96% of the total peak area respectly.
本文以美国样品为对照，用GC-MS法分析了陕西甘泉、麟游、旬邑、千阳及长安库峪、石砭峪、冯三等不同海拔高度地区椒样薄荷精油的组成成分及相对含量，分别鉴定出38种化学成分，其含量分别占组分总量的96%以上。