质谱仪

A technique for the analysis of flavour compounds from fish muscle employing microwave distillation, solid phase microextraction coupled with gas chromatography-mass spectrometry and olfactometry is described, and 53 compounds responsible for the aroma of bighead carp were identified from NIST 02 MS data base.

用微波蒸馏-固相微萃取装置提取鳙鱼鱼肉中的挥发性成分，利用气相色谱-质谱联用仪对气味化合物成分进行了定性分析，同时利用嗅觉检测器鉴别了部分挥发性物质的气味特征。

Methods GC-MS was used to analyse the chemical constituents of the essential oil of Phlomis medicinalis Diels.

方法采用气相色谱-质谱联用仪对萝卜秦艽块根的挥发油成分进行了分析研究。

The fatty acids in the oil were esterified by sodium hydroxide-methanol, and then analyzed by gas chromatography-mass spectrometry.

方法采用索氏提取法提取其脂肪酸，再进行甲酯化处理，以气相色谱质谱联用仪进行了分离和鉴定。

A series of analogs of fatty acid amide and fatty nitrile have been identified in shell bar section, Qaidam Basin, Tibetan Plateau by using the gas chromatography-mass spectrometry.

中文摘要：利用气相色谱质谱联用仪对青藏高原柴达木盆地察尔汗湖区贝壳堤剖面古湖相沉积物样品进行了系统地分析，检测出系列脂肪酸酰胺与脂肪腈类含氮类脂物分子化石。

A series of analogs of fatty acid amide and fatty nitrile were identified along the shell bar section of the Qaidam Basin in Qinghai-Tibet Plateau by using the gas chromatography-mass spectrometry.

中文摘要：利用气相色谱质谱联用仪对青藏高原柴达木盆地察尔汗湖区贝壳堤剖面古湖相沉积物样品进行了系统地分析，检测出系列脂肪酸酰胺与脂肪腈类含氮类脂物分子化石。

The herbicides in the sample was extracted with ethyl acetate. The extract was decanted into a flask through a filter paper, then the filtered solution was concentrated to dry. The dry sample was dissolved and added to 5 mL with acetone-n-hexane (30:70, V/V). It was cleaned up by Florisil, concentrated again. The sample was dissolved and adjusted to 1mL with acetone.

匀浆后的草莓试样用乙酸乙酯进行提取，提取液经滤纸过滤后收集，再浓缩蒸干，用丙酮：正己烷(30：70， V/V)溶液溶解至5ml，经Florisil固相萃取柱净化，吹干后用丙酮定容，供气相色谱－质谱联用仪进行测定。

Gas ChromatographyIon Trap Mass Spectrometer was widely used in the analysis of pharmaceuticals, environment, pesticides, foodstuff, organic chemicals, drugs, medicine and biology, etc.

气相色谱离子阱质谱联用仪广泛地应用于药物分析、环境分析、农药检测和食品分析、有机化学品分析、毒品分析以及医学和生物分析等领域。

Effects of different pyrolytic temperatures on the formation of aromatic substances were investigated by pyrolysis chro-matography-mass chromatography when β-carotene was pyrolysed at high temperature under nitrogen protection.

利用裂解色谱-质谱联用仪对β-胡萝卜素在不同温度下进行裂解时所生成的香味物质进行了研究。

The structure of SRP was tested by PyGC-MS and FTIR. The results showed that the group of －SO3 was grafted onto the surface of the scrap rubber powder.

利用高分辨裂解气相色谱－质谱联用仪和FTIR对SRP的结构进行了分析，测试结果表明，SRP已接枝上磺酸基团。

It is important to understand the tar evolving and cracking behavior in the fluidized bed gasifier. With peanut shell, rice straw and saw dust as raw materials, the gasification was carried out in a pilot scale fluidized bed gasifier at variant temperatures (750℃~850℃), air equivalence ratio (0.15~0.35) and catalyst addition. Simultaneously, tar component was analyzed using gas chromatograph with mass selective detector.

为了了解生物质流化床气化过程中焦油的析出和脱除特性，以花生壳、稻草以及木屑为原料，采用流化床气化反应系统，研究了气化温度(750℃~850℃)、空气当量系数(0.15~0.35)以及催化剂（白云石、橄榄石与菱镁矿）的添加等对气体产物中焦油的析出组成特性的影响，并采用色谱-质谱联用仪对焦油的主要成分进行了分析。

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。