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- Abstract : The electron impact mass spectra of ten new C2-symmetric chiral bis(oxazoline) and bis(thiazoline) have been studied. 摘要 ： 本文研究了十个新的C2对称的手性双恶唑啉和双噻唑啉等两个系列的电子轰击质谱。
- Computer Aided Search for Molecular Formula and Bond Breaking Rules in an Electron Impact Mass Spectrum 电脑辅助解析电子轰击质谱的分子式和断键规律
- electron impact mass spectra (EI-MS) 电子轰击质谱
- Electron impact mass spectrum 电子轰击质谱
- Keywords anhydro-sugars;electron impact mass spectra;metastable scanning; 内醚糖;电子轰击质谱;亚稳离子扫描;
- The electron impact mass spectral fragmentations of Hainansensine analogs werereported. 本文对17个海南新碱类似物的电子轰击质谱裂解机理进行了探讨。
- Study on Raceanisodamine by Electron Impact Mass Spectrometry 消旋山莨菪碱的电子轰击质谱研究
- Identification of Organic Compounds in Water by Combined Gas Chromatography and Electron Impact Mass Spectrometry 用综合气体色层分离法和电子冲击光谱法鉴别水中有机化合物的规程
- Its stucture was investigated through IR,1H NMR and mass spectrum. 用红外光谱、核磁共振氢谱和质谱推测了产物的结构。
- Screening of Steroidal Saponins from the Bulbs of Lilium Brownii var. Colchesteri by Combination of High Performance Liquid Chromatography-Electrospray Ionization Mass Spectrometry and Electron Impact Mass Spectrometry 液相色谱-电喷雾电离质谱与电子轰击质谱联用筛选百合中的甾体皂甙
- A new electron impact storage ion source has been designed for time of flight mass spectrometers with a high mass resolving power and high sensitivity. 电子轰击存贮型脉冲离子源是为高分辨率、高灵敏度飞行时间质谱仪设计的新型离子源。
- The properties of jet fuel fractions at different time and their impact on discoloration performance of particulate clay are analyzed by infrared spectrum, chromatography and mass spectrum. 分析了不同时期喷气燃料馏分油的性质及其对颗粒白土吸附脱色性能的影响。
- Meanwhile, MS peaks with +3, +4, +5, +6 and +7 charges were formed in mass spectrum under the ESI positive scan mode. 同时在ESI正离子全范围扫描中主要形成带有+3、+4、+5、+6、+7等不同电荷数的质谱峰。
- Dipentene of different origin were analysed by GC-MC and computer autometic request mass spectrum. 采用气质联用仪，微机图谱自动检索对不同来源的双戊烯的化学组成进行了分析。
- Aim:To determine the mass spectrum and the mass spectrometric decomposition process of azodiisobutyronitrile. 目的：确定偶氮二异丁腈的质谱图及其质谱碎裂机理。
- The HPLC was subjected to gradient elution and negtive ion mode was adopted in mass spectrum. 高效液相色谱用梯度洗脱,质谱用负离子模式。
- By using a distorted-wave Born exchange approximation, the direct ionizarion cross section of boron-like ions by electron impact have been calculated. 运用扭曲波玻恩交换近似对处于Hartree-Fock基态的类硼离子的电子碰撞直接电离截面进行了计算。
- The application of FAB-MIKES mass spectrum to the determination of amino acid sequenceof peptides was reported. 本文报道了用快原子轰击与质量分离离子动能谱(FAB-MIKES)技术测定三个多肽(七肽、八肽和九肽)中氨基酸的顺序。
- Multiphoton ionization mass spectrum of ammonia-methanol complex cluster and ab initio calculation[J]. 引用该论文 许明坤;张树东;孔祥和;蔡廷栋;姜素蓉.
- On one hand, many C,N-containingneutral species such as C2N2, CH3CN, HC3N, CCN, etc. can effectively produce the C2N+ ion upon electron impact and radiation. 一方面，很多含有C,N原子的中性分子如C2N2、CH3CN、HC3N、CCN等经电子撞击电离或辐射后能很有效的电离出C2N+离子；
