茶条木挥发油的化学成分

采用毛细管气相色谱－质谱联用法对茶条木挥发油化学成分进行了研究,经毛细管普分离出１３４个峰,共确认了其中１０１种成分,所鉴定化合物的含量占全油的７８．０８％。用气相色谱面积归一化法测定了各成分的相对含量,其主要化学成分为二苯胺、棕榈酸甲酯、十六酸等。     

GC-MS分析大蒜中的挥发油和大蒜精油

采用气相色谱—质谱法,分析比较大蒜中的挥发油以及大蒜精油的化学成分,通过非负矩阵因子分解(NMF)方法解析色谱重叠峰,并用峰面积百分比法计算各化学成分的峰面积相对百分含量。确定了大蒜中37种化学成分,其中含硫化合物34种,大蒜精油中的32种化学成分,含硫化合物28种。     

白千层挥发油化学成分分析

用毛细管气相色谱、气相色谱－ 质谱－ 计算机分析技术, 对植物白千层枝叶挥发油化学成分进行了分析研究, 从这种植物挥发油中分离出８０ 个以上的组分, 确认了其中的３５ 种成分, 所鉴定的组分占挥发油色谱总峰面积的９０ ％ 以上。     

单叶蔓荆子挥发油成分的GC/MS分析

采用气相色谱／质谱（ＧＣ／ＭＳ）联用技术对山东泰山产单叶蔓荆子挥发油的化学成分进行了分析,分离出３０多个峰,确认了其中２８种成分,占总离子流的９５％以上,并对挥发油的主要化学成分Δ３－蒈烯,用气相色谱／傅里叶红外光谱（ＧＣ／ＦＴＩＲ）法进行了验证。     

马山前胡挥发油化学成分研究

本文用毛细管气相色谱、气相色谱／质谱／计算、气相色谱／红外光谱等现代仪器分析技术，对马山前胡挥发油的化学成分进行了分析研究，从毛细管色谱分离出８０多个峰，确认了其中３７种成分，占色谱总馏出峰面积的９７％以上，该挥发油的主要化学成分为蒎烯。     

桉树叶挥发油化学成分的研究

采用毛细管气相色谱-质谱（CGC-MS）联用技术对桉树叶挥发油的化学成分进行研究,经毛细管气相色谱分离出30个峰,共确认了其中21种成分,占总油量的97．57％。其主要成分是按油精、3,7,7-三甲基-二环[4．1．0]庚2-烯、α,α,4-三甲基-3-环已烯-1-甲醇、喇叭茶醇等。     

哈士蟆油中脂肪酸的GC、GC-MS分析

用气相色谱（ＧＣ）与气相色谱－质谱（ＧＣ－ＭＳ）联用技术对哈士蟆油中的脂肪酸组成进行了定性与定量分析,共鉴定出１０种脂肪酸并用气相色谱法作了定量,对所得的结果进行了讨论。     

沙枣花挥发油化学成分的研究

本文用自制的水蒸汽蒸馏－溶剂萃取装置从沙枣花鲜花中提取挥发油，测得其含量为0.1%,用毛细管气相色谱-质谱法对挥发油的化学成分进行了研究,色谱分离出85个组分,质谱鉴定了其中47个组分,主要组分为反式肉桂酸乙酯,占总色谱峰面积的78.88%,IR和NMR为主要成分的鉴定提供了佐证。     

香芸火绒草精油化学成分研究

用毛细管气相色谱／质谱、毛细管气相色谱／付里叶红外联用技术对青海产香芸火绒草精油化学成分进行分离。共鉴定出１１９个化俣物，占全部峰面积的９６．８％。     

艾纳香挥发油化学成分的气相色谱 -质谱分析

由黔产艾纳香（Blumea balsamifera DC.)的叶提取挥发油,分出结晶后的母液,用气相色谱－质谱进行定性分析和峰面积相对含量的测定,鉴定出41个化学成分;主要成分为L－龙脑、樟脑、β-石竹烯、桉叶油醇、古芸烯、芳樟醇等。     

气相色谱-质谱法测定姜黄挥发油化学成分

采用水蒸气蒸馏法提取姜黄挥发油,用气相色谱－质谱联用技术分离和鉴定姜黄挥发油的化学成分。经计算机ＮＢＳ谱库检索,发现姜黄挥发油中至少有１５个峰,鉴定出α－姜黄烯、α－姜烯、桉叶油素和球姜酮等１５种组分;另外还有１－（３－环戊基醛）－２,４－二甲基苯、β－倍半水芹烯、大根香叶酮、大根香叶烷、顺双环［３,３,１］酮－２－烯－９－醇等成分。姜黄挥发油中主要成分为α－姜黄烯。     

南方马尾松松针挥发油成分的气相色谱/质谱分析

采用水蒸了蒸馏方法从中国南方新鲜马尾松松针中提取出挥发油,利用气相色谱／质谱（ＧＣ／ＭＳ）联用技术对其化学成分进行了分析,共分离出９１个峰,各组分经数据库标准图谱核对,得到分子结构。其中３６种化合物的含量较高,占总离子流的８３．０５％,主要是单萜和倍半萜,以及少量萜烯的醇、酯类化合物。     

Essential oil composition of Rydingia michauxii (Briq.) Scheen & V.A. Albert endemic of Iran

The chemical composition of the essential oil (EO) obtained from the aerial parts of Rydingia michauxii (Briq.) Scheen & V.A. Albert was analysed by gas chromatography and gas chromatography/mass spectrometry (GC/MS). Eighty components were identified in the oil with caryophyllene oxide (20.1%), trans-verbenol (10.2%), linalool (5.3%) and humulene epoxide II (4.6%) as main constituents. We reported here the chemical compositions of R. michauxii EOs from southern Zagros of Iran with a distinct chemical profile for the first time.     

Phytochemical analysis of the essential oil from botanically certified oleogum resin of Boswellia sacra (Omani Luban)

The yield of hydrodistillation of a botanically certified Oleogum Resin of Boswellia sacra essential oil (5.5%); and its chemical constituents were determined. The GC/MS technique was used for the analysis of the oil. Several oil components were identified based upon comparison of their mass spectral data with those of reference compounds published in literature or stored in a computer library. The oil was characterized by the high content of the monoterpenes (34) which constituted 97.3% in which E-beta-ocimene and limonene were the major constituents. The remaining 2.7% was accounted for the sesquiterpenes (16) in which the E-caryophyllene was the major constituent. The analysis proved the complete absence of the diterpenes.     

气相色谱-质谱联用分析花椒挥发油的成分

 采用气相色谱 质谱联用技术对陕西富平产花椒挥发油的成分进行了分析 ,分离出了 17个峰 ,鉴定出了相对峰面积大于 1 0 %的组分共 16个 ,用峰面积归一化法定量测定了已确定组分的相对含量 ,其占挥发油总质量的95 %以上。     

Study on essential oils from the leaves of two Vietnamese plants: Jasminum subtriplinerve C.L. Blume and Vitex quinata (Lour) F.N. Williams

The essential oil constituents of the leaves of Jasminum subtriplinerve (Oleaceae) and Vitex quinata (Verbanaceae) cultivated in Vietnam were analysed by gas chromatography – flame ionisation detector (GC–FID) and gas chromatography – mass spectrometry (GC–MS) techniques. The main constituents identified in J. subtriplinerve were mainly oxygenated monoterpenes represented by linalool (44.2%), α-terpineol (15.5%), geraniol (19.4%) and cis-linalool oxide (8.8%). The quantitative significant components of V. quinata were terpene hydrocarbons comprising of β-pinene (30.1%), β-caryophyllene (26.9%) and β-elemene (7.4%). The chemical compositions of the essential oils are being reported for the first time.     

杂多酸催化裂解松香产物中挥发油成分分析

杂多酸（ＨＰＡ）催化松香裂解的产物为油状物,本文利用气相色谱／质谱（ＧＣ／ＭＳ）联用技术对该产物的挥发组分进行了分析,共分离出１７７个峰,通过与数据库标准图谱对照鉴定出绝大部分组分。其中有２８种组分含量较高,占挥发成分总含量的５１．５２％,主要为松香裂解产生的Ｃ６～Ｃ２０的烯烃、芳香烃及酮类。     

Chemical composition of the essential oil of Croton gossypiifolius from Venezuela

The essential oil from leaves of Croton gossypiifolius Vahl. (Euphorbiaceae) was obtained by hydrodistillation, and analyzed by GC/FID and GC/MS. The constituents were identified by their mass spectra and Kovats' indices. Fifty-one compounds accounting for 92% of the oil were detected, and 47 of them were identified. The oil was dominated by oxygenated sesquiterpenes with the major presence of alpha-cedrene oxide (18.6%), spathulenol (16.3%), valencene (5.8%), geranyl-pentanoate (5.3%), alpha-cadinol (4.0%), germacrene D (3.5%) and longifolene (3.3%).