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    刘壮峻, 陈卫东, 朱凤英, 王复. 聚氧乙烯型非离子表面活性剂的电喷雾质谱行为[J]. 华东理工大学学报（自然科学版）, 2005, (6): 825-828.
    引用本文: 刘壮峻, 陈卫东, 朱凤英, 王复. 聚氧乙烯型非离子表面活性剂的电喷雾质谱行为[J]. 华东理工大学学报（自然科学版）, 2005, (6): 825-828.
    shu
    LIU Zhuang-jun, CHEN Wei-dong, ZHU Feng-ying, WANG Fu. Electrospray Ionization Mass Spectrometric Behavior of Ethoxylates Surfactant[J]. Journal of East China University of Science and Technology, 2005, (6): 825-828.
    Citation: LIU Zhuang-jun, CHEN Wei-dong, ZHU Feng-ying, WANG Fu. Electrospray Ionization Mass Spectrometric Behavior of Ethoxylates Surfactant[J]. Journal of East China University of Science and Technology, 2005, (6): 825-828.
    shu

    聚氧乙烯型非离子表面活性剂的电喷雾质谱行为

    Electrospray Ionization Mass Spectrometric Behavior of Ethoxylates Surfactant

      摘要
    • 摘要: 聚氧乙烯型表面活性剂是一类重要的非离子型表面活性剂，易与阳离子形成加合离子M＋X^＋。应用电喷雾飞行时间质谱仪（ESI—TOF—MS），以直接进样的方式，对壬基酚聚氧乙烯醚加合离子进行了研究。通常在谱图中可见钠、钾加合离子M＋-Na^＋、M＋K^＋。样品中的钠、钾离子的浓度影响对应加合离子的谱峰强度。样品中加入．MgCl2，可在谱图上观察到M＋MgCl^＋离子的谱峰。用高分辨电喷雾质谱确定M＋18^＋峰对应于M＋NH4^＋。

       

      Abstract: Etyoxylates are an important group of nonionic surfactants.A method of direct infusion analysis by electrospray ionization(ESI) time-of-flight(TOF) mass spectrometry(MS) has been used to determine nonylphenol ethoxylates(NPEO) adducts. Common sodium and potassium adducts~+,~+ were observed in spectrum.With the addition of MgCl_2,NPEO form the adduct of M+MgCl~+.Through comparison of spectra,addtion of various amount of K~+ into NPEO samples could display the change of peak intensity between ~+ and ~+.ESI/MS high-resolution spectrum was used to confirm corresponding to M+NH_4~+.

       

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