Price, Duncan M.; Bashir, Sajid; Derrick, Peter R.; Sublimation properties of x,y-dihydroxybenzoic acid isomers as model MALDI matrices. Thermochimica Acta 327(1-2) (1999) 167-171
The enthalpies of sublimation of the six isomers of dihydroxybenzoic acid were determined by thermogravimetry as part of a study to investigate their performance as model matrices in matrix assisted laser desorption/ionisation-mass spectrometry. The enthalpy of sublimation could be determined to within an error of ±7%. In the MALDI mechanism, sublimation is thought to play an important part, however in the present study no positive correlation between this parameter and the performance of the material as a matrix was found.
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