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- This paper reports the electron ionization mass spectra(EIMS)of eight 2,4,6trisubstituted pyrimidines derivatives. 本文报道了8个2，4，6-三取代嘧啶衍生物的电子轰击电离质谱。
- Methods For further study on it, the mass spectrometry techniques of electron ionization mass spectrometry(EI-MS) and electron spray ionization mass spectrometry(ESI-MS) were used for the elucidations of the structure and fragmentation pathway of TC. 方法采用电子轰击质谱(EI-MS)、电喷雾电离质谱(ESI-MS)2种质谱技术分别对TC的结构和裂解途径进行实验。
- electron ionization mass spectrometry 电子电离质谱分析
- electron ionization mass spectrum 电子电离质谱
- electron ionization mass spectrometry(EI-MS) 电喷雾电离质谱（ESI-MS）
- High performance liquid chromatography (HPLC) and electron ionizing mass spectrometry ( EI-MS) were used to analyze the oily contaminant in continuous tinplating electrolyte. 高速镀锡电解槽液表面常会出现"油污"现象,严重影响了镀锡件的产品质量,增加了原料消耗和镀液排放量。
- In 2002, we develop Photo-catalyst &electronic Ionizer Air Purifier. 2002年以光触媒及电子式离子发生器技术;发展空气净化器.
- electronic ionization coefficient 电子电离系数
- Ionization energy (ie) 3.894 electron volts. 电离能3.;894电子伏特。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- Analysis of Cryptotanshinone by Electron Spray Ionization Mass Spectrometry and Electron Ionization Mass Spectrometry 隐丹参酮的电子电离和电喷雾电离质谱分析
- Analysis of Phencynonate by Electron Ionization Mass Spectrometry and Electron Spray Ionization Mass Spectrometry 苯环壬酯及其代谢物的电子轰击和电喷雾电离质谱分析
- Study on Fragment Characteristics of Melatonin by Electron Ionization Mass Spectrometry 褪黑激素的电子轰击质谱及其裂解途径的解析
- An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
- Study on Thiencynonate by Electron Ionization and Electron Spray Ionization Mass Spectrometry 噻环壬酯的电子轰击和电喷雾电离质谱分析
- An atom is stripped of all electrons by ionization. 电离可剥掉一个原子的全部电子。
- A Comparison of Fast Atom Bombardment and Electron Ionization Mass Spectra of DiisopropylPhosphoryl Protected Amino Acids N-二异丙基磷酰基氨基酸的电子电离和快原子轰击质谱的比较
- The number of electron pairs an atom can share with other atoms. 共用电子对数，共价一个原子与其他原子共用的电子的对数
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- A gas-filled ionization chamber uses this principle. 充气电离室就是利用这一原理。
