高等学校化学学报

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (4): 627.

• 研究简报 • 上一篇    下一篇

辅助电极对纳升电喷雾影响的研究

许雪姣, 翟建军, 水雯箐, 徐国宾, 杨芃原   

  1. 1. 复旦大学化学系, 上海 200433;
    2. 兰州大学化学系, 兰州 730000
  • 收稿日期:2002-06-18 出版日期:2004-04-24 发布日期:2004-04-24
  • 通讯作者: 杨芃原(1949年出生),男,博士,教授,博士生导师,从事生物质谱研究.E-mail:pyyang@fudan.edu.cn E-mail:pyyang@fudan.edu.cn
  • 基金资助:

    国家“九七三”项目(批准号:001CB510202);“八六三”项目(批准号:2001AA233031);国家自然科学基金(批准号:20299030)资助

Influence of Auxiliary Electrode on Nanoliter Electrospray

XU Xue-Jiao, ZHAI Jian-Jun, SHUI Wen-Qing, XU Guo-Bin, YANG Peng-Yuan   

  1. 1. Department of Chemistry, Fudan University, Shanghai 200433, China;
    2. Department of Chemistry, Lanzhou University, Lanzhou 730000, China
  • Received:2002-06-18 Online:2004-04-24 Published:2004-04-24

PDF (PC)

关键词: 辅助电极, 纳升电喷雾, 利血平

Abstract: An auxiliary electrode was used to improve the electric field distribution between the nESI emitter and the MS sampler. The results show an improvement in the ratio of signal to noise for nanoliter electrospray using a home-made nanoliter electrospray tip, evaluated by spraying a 25 pg/μL reserpine solution. In addition, the average ratios of signal to noise of reserpine acquired within 30 min at different concentrations were compared with those obtained with an auxiliary electrode. The experimental results suggest that an auxiliary electrode could dramatically improve the ratio of signal to noise and provide confident trends for future application of auxiliary electrode in nanoliter electrospray.

Key words: Auxiliary electrode, Nanoliter electrospray, Reserpine

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