Structural effects on polyether cationization by alkali metal ions in matrix-assisted laser desorption/ionization

被引：42

作者：

Wang, YQ ^{[1
]}

Rashidzadeh, H ^{[1
]}

Guo, BC ^{[1
]}

机构：

[1] Cleveland State Univ, Dept Chem, Cleveland, OH 44115 USA

来源：

JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY | 2000年 / 11卷 / 07期

关键词：

D O I：

10.1016/S1044-0305(00)00119-7

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Structural effects on polyether cationization in matrix-assisted laser desorption/ionization (MALDI) are investigated using three different polyethers: PEG (polyethylene glycol), PPG (polypropylene glycol), and PTHF (polytetrahydrofuran). This study was performed using equimolar cesium and lithium chlorides as the cationizing agent. It was observed that the polyether structure variation led to a substantial change in polyether selectivity for alkali metal ion complexation. Moreover, it was found that like PEG, PPG displays a different selectivity for Cs+ and Li+ with different matrices. Discussion of these results and their implication in MALDI are given. CT Am Soc Mass Spectrom 2000, 11, 639-643) (C) 2000 American Society for Mass Spectrometry.

引用

页码：639 / 643

页数：5

共 37 条

[1] MASS-SPECTROMETRY OF SYNTHETIC-POLYMERS BY UV MATRIX-ASSISTED LASER DESORPTION IONIZATION [J].

BAHR, U ;

DEPPE, A ;

KARAS, M ;

HILLENKAMP, F ;

GIESSMANN, U .

ANALYTICAL CHEMISTRY, 1992, 64 (22) :2866-2869

[2] MATRIX-ASSISTED ULTRAVIOLET-LASER DESORPTION - EVOLUTION AND PRINCIPLES [J].

BEAVIS, RC .

ORGANIC MASS SPECTROMETRY, 1992, 27 (06) :653-659

[3] Evaluation of matrix-assisted laser desorption ionization mass spectrometry for polymer characterization [J].

Belu, AM ;

DeSimone, JM ;

Linton, RW ;

Lange, GW ;

Friedman, RM .

JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, 1996, 7 (01) :11-24

[4] MASS-SPECTROMETRIC STUDY OF INTERACTIONS BETWEEN POLY(ETHYLENE GLYCOLS) AND ALKALI-METALS IN SOLUTION [J].

CHAN, KWS ;

COOK, KD .

MACROMOLECULES, 1983, 16 (11) :1736-1740

[5] Use of binary solvent systems in the MALDI-TOF analysis of poly(methyl methacrylate) [J].

Chen, HR ;

Guo, BC .

ANALYTICAL CHEMISTRY, 1997, 69 (21) :4399-4404

[6] MATRIX-ASSISTED LASER-DESORPTION IONIZATION TIME-OF-FLIGHT MASS-SPECTROMETRY CHARACTERIZATION OF POLY(BUTYL METHACRYLATE) SYNTHESIZED BY GROUP-TRANSFER POLYMERIZATION [J].

DANIS, PO ;

KARR, DE ;

SIMONSICK, WJ ;

WU, DT .

MACROMOLECULES, 1995, 28 (04) :1229-1232

[7] THE ANALYSIS OF WATER-SOLUBLE POLYMERS BY MATRIX-ASSISTED LASER DESORPTION TIME-OF-FLIGHT MASS-SPECTROMETRY [J].

DANIS, PO ;

KARR, DE ;

MAYER, F ;

HOLLE, A ;

WATSON, CH .

ORGANIC MASS SPECTROMETRY, 1992, 27 (07) :843-846

[8]

Deery MJ, 1997, RAPID COMMUN MASS SP, V11, P57, DOI 10.1002/(SICI)1097-0231(19970115)11:1<57::AID-RCM772>3.0.CO

[9]

2-G

[10]

Dogruel D, 1996, RAPID COMMUN MASS SP, V10, P801

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