COMPUTER-CONTROLLED ACTIVATION OF 25-MU-M DIAMETER TUNGSTEN WIRE FOR FIELD DESORPTION

被引:2
作者
CHAN, TWD [1 ]
COLBURN, AW [1 ]
ALDERDICE, DS [1 ]
DERRICK, PJ [1 ]
机构
[1] UNIV WARWICK,DEPT CHEM,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND
来源
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1991年 / 107卷 / 03期
关键词
D O I
10.1016/0168-1176(91)80043-M
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
An attempt has been made to translate the "art" of growing carbon microneedles on tungsten wires into an automated procedure by means of microcomputer control. The concept of a power-resistance isotherm is introduced, as a means of characterizing the activation process for the purpose of automation. As well as freedom from the requirement for an operator to monitor activation, high degrees of reproducibility for the activation processes and easier optimization of conditions when, for example, different diameter wires are used have been found to be important benefits resulting from automation.
引用
收藏
页码:491 / 501
页数:11
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