DYNAMICS OF MATRIX-ASSISTED LASER-DESORPTION AS REVEALED BY THE ASSOCIATED ACOUSTIC-SIGNAL

被引：14
作者：
HEISE, TW
YEUNG, ES
机构：
[1] US DOE,AMES LAB,AMES,IA 50011
[2] IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011
来源：
ANALYTICA CHIMICA ACTA | 1995年 / 299卷 / 03期
关键词：
ACOUSTIC METHODS; PIEZOELECTRIC SENSORS; LASER DESORPTION;
D O I：
10.1016/0003-2670(94)00309-A
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Some characteristics of the commonly used ultraviolet matrices for matrix-assisted laser desorption were determined, including solubilities in methanol and solid-phase absorption spectra. Differences between frontside and rearside desorption geometries are observed. Acoustic and quartz crystal microbalance signals were investigated as possible means of quantification of the amount of material vaporized by each laser pulse. Evidence for the existence of desorption thresholds is presented. Threshold values were determined to be in the 2-3 MW/cm(2) range.
引用
收藏
页码：377 / 385
页数：9
相关论文
共 30 条
  • [1] MATRIX-ASSISTED ULTRAVIOLET-LASER DESORPTION - EVOLUTION AND PRINCIPLES
    BEAVIS, RC
    [J]. ORGANIC MASS SPECTROMETRY, 1992, 27 (06): : 653 - 659
  • [2] PHENOMENOLOGICAL MODELS FOR MATRIX-ASSISTED LASER DESORPTION ION YIELDS NEAR THE THRESHOLD FLUENCE
    BEAVIS, RC
    [J]. ORGANIC MASS SPECTROMETRY, 1992, 27 (08): : 864 - 868
  • [3] BEAVIS RC, 1991, METHODS MECHANISMS P, P227
  • [4] ACOUSTIC-SIGNAL AS AN INTERNAL STANDARD FOR QUANTITATION IN LASER-GENERATED PLUMES
    CHEN, GY
    YEUNG, ES
    [J]. ANALYTICAL CHEMISTRY, 1988, 60 (20) : 2258 - 2263
  • [5] MATRIX-ASSISTED LASER DESORPTION WITH ULTRA-SHORT LASER-PULSES
    DEMIREV, P
    WESTMAN, A
    REIMANN, CT
    HAKANSSON, P
    BAROFSKY, D
    SUNDQVIST, BUR
    CHENG, YD
    SEIBT, W
    SIEGBAHN, K
    [J]. RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 1992, 6 (03) : 187 - 191
  • [6] PROPERTIES OF MATRIX-ASSISTED LASER DESORPTION - MEASUREMENTS WITH A TIME-TO-DIGITAL CONVERTER
    ENS, W
    MAO, Y
    MAYER, F
    STANDING, KG
    [J]. RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 1991, 5 (03) : 117 - 123
  • [7] FLUORESCENCE IMAGING OF GAS-PHASE MOLECULES PRODUCED BY MATRIX-ASSISTED LASER DESORPTION
    HEISE, TW
    YEUNG, ES
    [J]. ANALYTICAL CHEMISTRY, 1992, 64 (18) : 2175 - 2179
  • [8] HILLENKAMP F, 1991, ANAL CHEM, V63, pA1193
  • [9] SCANNING ELECTROCHEMICAL MASS SENSITIVITY MAPPING OF THE QUARTZ CRYSTAL MICROBALANCE IN LIQUID-MEDIA
    HILLIER, AC
    WARD, MD
    [J]. ANALYTICAL CHEMISTRY, 1992, 64 (21) : 2539 - 2554
  • [10] HOUK RS, 1986, ANAL APPLICATIONS LA, P587
123