Determination of Water Loss Mechanism in Amine Terminous Amino Acids Using Laser Mass Spectrometry

作者: Kenneth J. Rosnack , Kasi V. Somayajula , Andrew G. Sharkey , Nancy J. Jensen , David M. Hercules

DOI: 10.1366/0003702894203949

关键词:

摘要: The water loss process in Laser Mass Spectrometry of amine terminal amino acids was studied. Water is proposed to occur via a thermal decomposition mechanism for protonated acid forming lactam ring. magnitude the peak correlated with stability Semi-empirical MNDO calculations heat reaction ring and support correlation. substrate (matrix) appears have little effect on process; results are essentially same use different substrates sample preparation methods.

参考文章(32)
W. H. Schröder, Quantitative LAMMA analysis of biological specimens I. Standards. II. Isotope labeling Fresenius Journal of Analytical Chemistry. ,vol. 308, pp. 212- 217 ,(1981) , 10.1007/BF00479626
U. Seydel, B. Lindner, Qualitative and quantitative investigations on mycobacteria with LAMMA Fresenius Journal of Analytical Chemistry. ,vol. 308, pp. 253- 257 ,(1981) , 10.1007/BF00479635
B C Ho, C Fenselau, G Hansen, J Larsen, A Daniel, Dipalmitoylphosphatidylcholine in amniotic fluid quantified by fast-atom-bombardment mass spectrometry. Clinical Chemistry. ,vol. 29, pp. 1349- 1353 ,(1983) , 10.1093/CLINCHEM/29.7.1349
R.J. Conzemius, J.M. Capellen, A review of the applications to solids of the laser ion source in mass spectrometry International Journal of Mass Spectrometry and Ion Physics. ,vol. 34, pp. 197- 271 ,(1980) , 10.1016/0020-7381(80)85040-6
H.J. Heinen, S. Meier, H. Vogt, R. Wechsung, LAMMA 1000, a new laser microprobe mass analyzer for bulk samples International Journal of Mass Spectrometry and Ion Physics. ,vol. 47, pp. 19- 22 ,(1983) , 10.1016/0020-7381(83)87126-5
Tetsuya Komori, Toshio Kawasaki, Hans-Rolf Schulten, Field desorption and fast atom bombardment mass spectrometry of biologically active natural oligoglycosides Mass Spectrometry Reviews. ,vol. 4, pp. 255- 293 ,(1985) , 10.1002/MAS.1280040302
Xuejun. Tang, Werner. Ens, Kenneth G. Standing, John B. Westmore, Daughter ion mass spectra from cationized molecules of small oligopeptides in a reflecting time-of-flight mass spectrometer. Analytical Chemistry. ,vol. 60, pp. 1791- 1799 ,(1988) , 10.1021/AC00168A029
A. Benninghoven, D. Jaspers, W. Sichtermann, Secondary-ion emission of amino acids Applied Physics. ,vol. 11, pp. 35- 39 ,(1976) , 10.1007/BF00895013
Michael J. S. Dewar, Walter Thiel, Ground states of molecules. 38. The MNDO method. Approximations and parameters Journal of the American Chemical Society. ,vol. 99, pp. 4899- 4907 ,(1977) , 10.1021/JA00457A004
A. Benninghoven, W. Sichtermann, Secondary ion mass spectrometery: A new analytical technique for biologically important compounds Journal of Mass Spectrometry. ,vol. 12, pp. 595- 597 ,(1977) , 10.1002/OMS.1210120914