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ionization mode
相关语句
  电离方式
     Ionization mode: positive ionization, IE70eV;
     电离方式:正离子电离,IE70eV;
短句来源
     Mass spectrometer conditions were: ionization mode: El, electron energy 70 eV , interface temperature: 280C , ion source temperature: 200℃ , quadropole temperature 100℃ , mass scan range: 35-500 AMU, solvent delay 3.0 min.
     质谱条件:电离方式EI,电子能量70eV,接口温度280℃,离子源温度200℃,四极杆温度100℃,质量扫描范围 35~500AMU,溶剂延迟3.0min。
短句来源
     The mobile phase was a mixture of methanol and water(11,V/V) at a flow rate of 0.2 ml·min~(-1). The influence of CapEx voltage,pH of sample solution,temperature of a counter flow of neutral,heated dying gas(T) and ionization mode on the mass spectra of BTTN and NG was studied.
     乙醇 水(1 1,V/V)混合液为流动相,流速为0.2ml·min-1.研究了CapEx电压、pH值的变化、反吹气温度、电离方式对BTTN和NG质谱的影响。
短句来源
     Mass spectrometer conditions were; ionization mode: EI, electron energy 70 eV, interface temperature 280℃, ion source temperature 200℃,quadropole temperature 100℃,mass scan range; 29-450AMU,solvent delay 2. 0 min.
     质谱条件:电离方式EI,电子能量70 eV,接口温度280℃,离子源温度230℃,四级杆温度100℃,质量扫描范围29-450AMU,溶剂延迟2.0 min。
短句来源
     Atmospheric pressure ionization(API), including atmospheric pressure chemical ionization(APCI) and electrospray ionization(ESI), is a new ionization mode and ion source. It has been gradually developed since 1980. As the most soft ionizaion technology, its ionization process generates at atmospheric pressure and its ionization efficiency is very high. Atmospheric pressure ionization technology is now routinely applied as liquid chromatography-mass spectrometry interface .
     大气压电离(atmospheric pressure inization, API)包括大气压化学电离(atmospheric pressure chemical ionzation, APCI)和电喷雾电离(eleotrospray ionization, ESI),是二十世纪八十年代发展成熟起来的一种新的电离方式和离子源,是目前最软的离子化技术。
短句来源
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  “ionization mode”译为未确定词的双语例句
     In this paper we studied the collision induced dissociation(CID) conditions,involving the MS/MS fragmentation effects by different ionization mode(FAB and ESI).
     本文报告考察了 FAB与 ESI碰撞诱导解离 ( CID)对 MS/MS裂解的影响。
短句来源
     HPLC_MS and HPLC_MS/MS were performed on an ion trap instrument in both positive and negative ionization mode.
     流速为0 5mL·min-1。 HPLC_MS与HPLC_MS/MS以离子阱为检测器,采用正、负2种离子检测模式进行检测。
短句来源
     The RSD of 2.6% for the method was found. The relation of sensitivity of method on amount of reaction gas and ionization mode was studied.
     该法的线性方程为Y=9.6691X +0.02357 ,r=0.999,方法精密度试验RSD为2.6 % ;
短句来源
     In our research, we have also tested the ESI and APCI method in positive and negative ionization mode and detected the ESI in negative ionization. As a result, it was more reproducible and sensitive than the others. At the 0.2-200 mg/kg residue level, the average recoveries prove to be between 78%-93% and the coefficient variation ranged from 3.7% to 3.9%.
     在0.2~200μg/kg添加浓度下,添加回收率水平在78%~93%间,变异系数在3.9%以下。
短句来源
     Pesticides were extracted from honey with hexane/ethyl acetate(5/1,V/V),in an ultrasonic bath and cleaned up on a Florisil column,then were determined by using a gas chromatography-mass spectrometry operated in electron ionization mode and quantified in selective ion monitoring mode,and with PCB103 as internal standard. Meanwhile,fracture mechanism of some organochlorines electronic ionization mass spectrometry were evaluated.
     蜂蜜试样用V(正己烷)∶V(乙酸乙酯)=5∶1混合提取剂超声提取和Florisil硅藻土层析柱净化后,以PCB 103为内标物,采用GC-EI-MS的选择离子监测方式(SIM)分析,同时探讨了一些有机氯农药EI-MS特征离子的结构与断裂机理。
短句来源
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  相似匹配句对
     Ionization mode: positive ionization, IE70eV;
     电离方式:正离子电离,IE70eV;
短句来源
     Electrospray ionization source was applied and operated in positive ion mode.
     采用电喷雾离子源三级四极杆串联质谱,以选择反应监测(SRM)方式进行检测。
短句来源
     Parking mode;
     停车场设计模式;
短句来源
     Communication mode;
     通信模式;
短句来源
     ④ characteristic ionization;
     ④膦酸类化合物电离特性 ;
短句来源
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  ionization mode
The results obtained for the dynamics of the transition from a beam-controlled discharge to the cascade ionization mode are given.
      
Neutral excitations generated in a discharge near a sharp tungsten tip operated in either the field emission or field ionization mode in liquid helium were detected with a surface ionization detector submerged in the liquid.
      
Chlorofluorocarbon in expanded polystyrene ware was analysed using headspace gas chromatography in the flame ionization mode, and confirmed by gas chromatography-mass spectrometry.
      
The mutagenic activity (TA98) was higher in presence of S9 and was recovered in the more polar fractions, where several mutagenic agents were identified by capillary GC-MS in the negative ion chemical ionization mode (NICI).
      
The molecular species were identified by means of the [MH]+ and the [MH-RCOOH]+ ions in positive chemical ionization mode.
      
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Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI). The result shows that EI fragmentation process of cholesterol esters is determined mostly by the steroid nucleus, and there is almost no difference among the mass spectra of various compounds. FD-MS can supply both clear imformation of molecular weights of compounds and a fragment ion at m/e 369 due to the steriod nucleus. Besides having the same feafures...

Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI). The result shows that EI fragmentation process of cholesterol esters is determined mostly by the steroid nucleus, and there is almost no difference among the mass spectra of various compounds. FD-MS can supply both clear imformation of molecular weights of compounds and a fragment ion at m/e 369 due to the steriod nucleus. Besides having the same feafures as that of FD-MS, CI-MS of most compounds yield information of RGOOH structure. Therefore, mass spectra gained by these three ionization modes are satisfactorily used to analyse liquid crystals.

研究了胆甾醇酯类和胆甾醇卤代物的电子轰击电离(EI)、场解吸电离(FD)、化学电离(CI)的质谱。结果表明:胆甾醇酯的EI质谱裂解途径主要由甾环决定,各化合物谱图之间几乎无差别;FD质谱能提供清晰的分子量信息和表征甾环结构的碎片离子峰(m/e 369);CI质谱除了具有FD质谱特征外,大部分还能提供RCOOH结构信息。三种质谱并用,能有效地测试液晶化合物。

The chemical ionization(CI)mass spectra of a series of terpene functional group positional isomers and stereoisomers have been studied using ammonia and isobutane as reagent gases.By investigating their ionization mechanisms,we suggested that a low energy electron impact (LEEI)ionization mode exists in CI processes.Based on the depe- ndence of the LEEI ionization mode on the reagent gas pressure and substrate moleculal structure,the best characterization of the structural differences between above...

The chemical ionization(CI)mass spectra of a series of terpene functional group positional isomers and stereoisomers have been studied using ammonia and isobutane as reagent gases.By investigating their ionization mechanisms,we suggested that a low energy electron impact (LEEI)ionization mode exists in CI processes.Based on the depe- ndence of the LEEI ionization mode on the reagent gas pressure and substrate moleculal structure,the best characterization of the structural differences between above terpene iso- mers was realized by selecting suitable reagent gas pressure.These isomers were efficien- tly distinguished by the proposed method.

本文研究了一系列萜类官能团位置异构体和立体异构体的氨及异丁烷化学电离质谱;讨论了它们的化学电离过程及其反应气压力因素的影响,提出了一辨析上述异构体的有效方法.

A new type of ferrocenyl thia crown ethers used as selective ligands to some poisonous metals was synthesized, and the features of their mass spectra in electron ionization mode were summarized as: (1) the strong molecular ion peaks; (2) a characteristic homologous ion series with sequential loss of C 2H 4S or C 2H 4O from M C 5H 5; (3) a new rearrangement reaction of Fe migration; (4) the uncommon loss of alcohol or thiol from the fragments of Fe rearrangement. Some typical fragmentation patterns...

A new type of ferrocenyl thia crown ethers used as selective ligands to some poisonous metals was synthesized, and the features of their mass spectra in electron ionization mode were summarized as: (1) the strong molecular ion peaks; (2) a characteristic homologous ion series with sequential loss of C 2H 4S or C 2H 4O from M C 5H 5; (3) a new rearrangement reaction of Fe migration; (4) the uncommon loss of alcohol or thiol from the fragments of Fe rearrangement. Some typical fragmentation patterns were discussed in detail with the aid of exact mass measurement and MS/MS technique.

ElectronIonizationMasSpectrometryofSomeFerrocenylThia┐crownEthersSUJing-zheandJUYing(BeijingInstituteofChemicalReagents,Beiji...

 
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