质谱仪

The pyrolysis characteristics and sulfur release characteristics during coal pyrolysis of three different coals, which include high volatile, were studied by TG-GC-MS(Thermal gravimetry-Gas Chromatography-Mass spectrum), tube furnace of pyrolysis reactor and intelligent fixup sulfur equipment.

本文应用热重—质谱—色谱联用系统、管式炉热解反应器和快速智能定硫仪，研究三种高挥发分煤种的热解特性和热解硫析出特性，对热解硫析出的两种主要产物(H_2S和COS)进行了监测分析，得到硫的赋存形态、粒径大小以及矿物质对各种形态含硫气体析出的影响规律。

A novel method for the determination of 5 pyrethroid pesticide residues in tobacco leaf and tea samples was established.

应用搅拌棒吸附萃取技术分别萃取烟叶和茶叶中的5种拟除虫菊酯，并利用热脱附系统将萃取到的物质进行热脱附，然后通过气相色谱-质谱联用仪进行分析测定。

Volatile flavor components of unfermented smelly tofu were extracted by a simultaneous distillation-extraction apparatus and analyzed by gas chromatography-mass spectrometry.

通过同时蒸馏萃取得到非发酵臭豆腐的挥发性风味物质，并通过气相色谱-质谱联用仪进行分析，共有49种化合物被检出。

The height of plant was measured every 15 days. The essential oil of the lemon verbena was obtained by steam distillation in different period of growth and analyzed by GC and GC-MS.

测定了株高变化，用水蒸汽蒸馏装置提取精油，用气相色谱仪和气相色谱质谱联用仪分析了不同时期精油含有率与成分的变化，对比不同器官、不同部位和不同采样时间的精油含有率的差异。

The acquisition method of volatile compounds, from different mechanical damage exent of oriental arborvitae, are the dynamic headspace body of improved air circulation Acquisition Act.

利用改进了的动态顶空气体循环采集法，对受不同程度机械损伤侧柏木释放的挥发物进行了采集粗提，通过热脱附冷阱-气相色谱-质谱联用仪进行了提取分析鉴定。

Methods Essential oil from the fresh Canarium album Raeusch leaves was extracted by steam distillation and were analyzed by gas chromatography-mass spectrometry.

方法采用水蒸气蒸馏法提取新鲜橄榄叶的挥发油，经气相色谱-质谱联用仪分析，归一化法测得各组分的相对含量。

The essential oil of Chimonanthus nitens was extracted by the volatile oil extractor, and analyzed by capillary gas chromatograph-mass spectrometry.

采用挥发油萃取器蒸馏法提取山腊梅叶的挥发油性成分，经毛细管气相色谱－质谱联用仪分析，鉴定了其中的72个挥发性化合物。

To extract the fatty acids compounds from Laurencia tristicha and Rhodomela confervoides, the fatty acid contents of the two kinds of seaweeds were separated and identified by gas chromatography/mass spectrometry method.

摘要制备三列凹顶藻和松节藻醇提物，采用气相色谱－质谱联用仪对这两种海藻提取物脂肪酸进行了分析，各分离出17个和18个峰，鉴定了12种脂肪酸。

MethodsWith chloroform as solvent, the liposoluble constituents in Ligularia fischeri were extracted by ultrasonic extraction. The extracted substances were isolated and identified by GC-MS.

方法以氯仿为溶剂超声提取蹄叶橐吾的脂溶性成分，利用气相色谱-质谱联用仪对提得物质进行分离和鉴定。

Samples were subjected to high pressure ranging from 100 to 500 MPa. After high pressure treatments, the flavour compounds were extracted by Solid-Phase Microextraction. Analysis was carried out by Gas Chromatography-Mass Spectrometry. The key flavour compounds of orange juice were three alkenes (namely limonene, myrcene and α-pinene), two alcohols (linalool and α-terpineol), three aldehydes, one ketone and two esters (ethyl butyrate and 3-OH-ethyl hexanoate).

采用固相微萃取（Solid Phase Microextraction，SPME）方法对不同压力（100～500 MPa）超高压处理的鲜榨橙汁中的香气成分进行富集，并经气相色谱-质谱联用仪（Gas Chromatography-Mass Spectrometry，GC-MS）检测分析，橙汁中的主要香气成分有：3种烯（柠檬烯、月桂烯、α-蒎烯）；2种醇；3种醛；1种酮；2种酯（丁酸乙酯、3-OH-己酸乙酯），它们是构成橙汁的主要特征致香成分。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。