顶空进样法,headspace injection
1)headspace injection顶空进样法
英文短句/例句
1.Measurement of Nitrite Concentration in Grape Wine by Gas Chromatography-Headspace Sampling气相色谱-顶空进样法测定葡萄酒中的亚硝酸盐
2.Ferment liquid substance aroma analysis by Headspace-GC and titration methods全自动顶空进样法与回流-滴定法分析酿酒醪液中香气物质
3.Determination of Halohydrocarbons in Water by Headspace Capillary Gas Chromatography顶空进样气相色谱法测定水中10种卤代烃
4.Analysis of Perfume Constituents in Beer Using Headspace Capillary Gas Chromatography;顶空进样—毛细管柱气相色谱法分析啤酒的香味组分
5.Analysis of Chemical Constituents of Chinese Eaglewood Wood by Gas Chromatography-Mass Spectrometry Coupled with Dynamic Headspace Sampling动态顶空进样-气质联用法分析国产沉香化学成分
6.Determination of Ethanol in Blood by Headspace Capillary Gas Chromatography顶空进样毛细管柱气相色谱法测定血液中酒精含量
7.New Application of Headspace Sampler in Rapid Detection of Flavors from Maillard Reaction in Foods顶空进样器在快速检测食品美拉德反应风味物质中的新应用
8.uploading air cleaner顶部进气的空气滤清器
9.Analysis of solvent residues in raw material drug of glimepiride by head-space sampling-capillary gas chromatography顶空采样-毛细管气相色谱法分析格列美脲原料药中的溶剂残留
10.The technique requires multiple extractions from the sample vial. This is very useful for developing method and running special sample.对于同一样品瓶的多次顶空提取，得到多个样品色谱图，用于方法的开发和对特种样品的分析。
11.GC-MS Analysis for Volatile Compounds of Herba Asari from Jilin Province Obtained by Steam Distillation or Headspace Injection水蒸气蒸馏提取与粉末顶空直接进样GC-MS分析吉林细辛的挥发性成分
12.modified top-down testing改进型自顶向下测试法
13.Like the Clean Air Act, the FWPCA was amended in 1977.也像《洁净空气法案》一样，《联邦水污染控制法案》在1977年进行了修正。
14.This article is about the research of the conditions for determining the aro- matic hydrocarbon in the wastewater of eokin8 industry by static Headspace Gas Chro- matographic Method.本文采用静态顶空气相色谱法对焦化污水中的芳香烃的测定条件进行了研究。
15.Determination of furan in foods using headspace gas chromatography-mass spectrometry顶空气相色谱-质谱法测定食品中呋喃
16.Determination of sodium cyclamate in ice cream by headspace gas chromatography顶空气相色谱法测定冷饮中的甜蜜素
17.Investigation of tea aroma by static headspace GC-MS静态顶空-气质联用法测定茶叶香气
18.Determination of cyanide in grains by headspace gas chromatography顶空气相色谱法测定粮食中的氰化物
相关短句/例句
Manul Head Space Method手动顶空进样法
3)headspace injection顶空进样
1.A capillary columnheadspace injection method for the determination of residual methanol, tetrahydrofuran, dichloroethane, pyridine and toluene in reloxifene hydrochloride was established.采用毛细管柱顶空进样法 ,以二烷为内标 ,同时测量盐酸雷洛昔芬中甲醇、四氢呋喃、二氯乙烷、吡啶及甲苯等 5种溶剂的残留量。
2.A GCheadspace injection method for the determination of residual organic solvents such as methanol, ethanol, acetonitrile, dichloromethane, ethylacetate, 4 methyl 2 pentanone, toluene, DMF, chloroform and tetrahydrofuran in tazobactam was established.建立了气相色谱顶空进样法测定三唑巴坦中甲醇、乙醇、乙腈、二氯甲烷、乙酸乙酯、甲基异丁基酮、甲苯、N ,N′-二甲基甲酰胺、氯仿和四氢呋喃等有机溶剂的残留量。
3.Methods The volatile compounds obtained by steam distillation or directheadspace injection were analyzed by GC-MS.方法采用传统的水蒸气蒸馏提取挥发油,和顶空进样直接采集挥发性成分2种方法,对吉林细辛中的挥发性成分进行GC-MS分析。
4)Headspace[英]["hedspeis][美]["h?d,spes]顶空进样
1.A method for the determination of volatile constituents in adhesive by headspace GC/MS was proposed.报道利用顶空进样 -GC/MS技术鉴定物质中挥发性成份的方法 ,鉴定出XY挥发性成份。
2.Determination of residual solvent in medicine by wide-bore capillaryHeadspace-Gas Chromatography(HS-GC)is a rapid,simple and high-efficient method,it is widely applicated to determinate residual solvent in medicine.本文通过建立原料药肝素钠、烟酸占替诺、福辛普利钠和盐酸头孢唑兰中残留溶剂分析测定方法,阐述了顶空进样一大口径毛细管气相色谱法检测药物中残留溶剂的应用,通过研究建立方法,探讨了顶空进样大口径毛细管气相色谱法应用开发和实际应用问题。
3.METHODS The headspace GC system consisted of a capillary column,polymerization or cross linking polyethylene glycol as the solid phase,and FID as the detector.方法以聚乙二醇为固定相的毛细管色谱柱,氢火焰离子检测器,顶空进样方式,柱温:起始温度为60℃,程序升温起始温度为60℃,保持16 min,以每分钟20℃的升温速率升至200℃,保持2 min。
5)Headspace Sampling顶空进样
1.Determination of the residual organic volatile solvents in block cream by gas chromatography with headspace sampling;气相色谱顶空进样法测定防晒霜中有机溶剂残留量
2.Determination of three residual organic volatile solvents in cefepime by gas chromatography with headspace sampling;气相色谱顶空进样法测定头孢吡肟中3种有机物残留量
3.In concentrated sulfuric acid TFA may change into MTFA with dimethyl sulfate(DMS),so it is possible to obtain the mass concentration of TFA in water samples by determining the mass concentration of MTFA with headspace sampling and GC-MS,using the volatility of MTFA.笔者建立了测定TFA质量浓度的实验方法:将样品中的三氟乙酸与硫酸二甲酯在浓硫酸介质中衍生为三氟乙酸甲酯(MTFA),利用MTFA的易挥发性,以顶空进样和气相色谱-质谱联用的方法检测样品中MTFA的质量浓度,进而得到环境水样中TFA的质量浓度。
6)headspace sampler顶空进样
1.Theheadspace sampler of Agilent 7694E was equilibrated at 85℃ for 40min.min-1,分流比为2∶1,柱温为50℃;检测器为FID,检测器温度250℃;Agilent6890NGC仪和7694E顶空进样器,顶空瓶加热温度为85℃,加热40 min;进样口温度为200℃。
2.By using distilled water as absorbing liquid to absorb acetone,methanol,ethanol and isopropanol in ambient air,and usingheadspace sampler in Gas chromatography and then separating them by capillary column,FID was used as detector.采用蒸馏水为吸收液,吸收大气中的丙酮、甲醇、乙醇和异丙醇,在气相色谱仪上顶空进样,经毛细管柱分离,以FID为检测器,可以准确地测出大气中的丙酮、甲醇、乙醇和异丙醇,以保留时间定性,峰高定量。
延伸阅读
顶空分析法(headspace analysis)分子式：CAS号：性质：又称顶空分析法(headspace analysis)。顶端空间的取样方法和气相色谱分析相结合的联用技术。将液体或固体试样置于有一定空间的密闭系统中，待达到热力学平衡后，取其顶端气相组分进行色谱分析。是间接测定试样中挥发性组分的一种方法。
