The use of pencil lead as a matrix and calibrant for matrix-assisted laser desorption/ionisation

被引：74

作者：

Black, C ^{[1
]}

Poile, C

Langley, J

Herniman, J

机构：

[1] AWE Aldermaston, Reading RG7 4PR, Berks, England

[2] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 2006年 / 20卷 / 07期

关键词：

D O I：

10.1002/rcm.2408

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Pencil lead is shown to be an effective matrix and calibrant in matrix-assisted laser desorption/ ionisation (MALDI) mass spectrometry. Various groups of analytes, including peptides, polymers and actinide metals, can be readily ionised using MALDI when deposited onto a pencil lead matrix. The matrix is seen to have advantages in sample preparation relating to its hydrophobic properties and almost complete suppression of the matrix during analysis. Using pencil lead as a matrix is a quick and convenient method of qualitative analysis and has been shown to be quantitative for the isotope ratio analysis of actinide metals. (c) Crown copyright 2006. Reproduced with the permission of Her Majesty's Stationery Office. Published by John Wiley & Sons, Ltd.

引用

页码：1053 / 1060

页数：8

共 14 条

[1] Isotope ratio measurements by secondary ion mass spectrometry (SIMS) and glow discharge mass spectrometry (GDMS) [J].