Application of microbial alkaloid prodigiosin as a potent matrix for analysis of low molecular mass plant antioxidants by maldi mass spectrometry
T12N3
A.B. Duzhak, T.D. Williams, Z.I. Panfilova, Y.P. Tsentalovich, T.G. Duzhak
Microbal alkaloid prodigiozin (PG) is introduced as a new efficient matrix for negative mode matrix assisted laser desorption/ionization (MALDI) mass spectrometry analysis of low molecular mass plant antioxidants. Physicochemical properties demonstrated by PG such as efficient ionization/desorbtion of the analytes, strong absorbtion at the applied laser wavelength, high solubility in the same organic solvents as analyte, uniform crystallization on the target, stability at working conditions, devoid of matrix fragment and cluster ions in the low m/z region, are in a good agreement with the requirements for the effective matrix. PG as a potent matrix facilitates effective ionization of plant antioxidants from multicomponent preparations. Characteristic features of flavonoid aglycones mass spectra recorded in the presence of PG as a matrix are high quality (signal to noise ratio more than 103) and good reproducibility. Application of PG for MALDI MS analysis of complex plant antioxidants mixtures permit the simultaneous detection and confident interpretation of the large set of ions corresponding to more than twenty different antioxidants in the low m/z range of 100 – 500.
Масс‑спектры матрично‑активированной лазерной десорбции/ионизации некоторых производных фуллеренов
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Изучение состава кластерных ионов систем нитрат серебра–галогениды калия
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Разлет многокомпонентного лазерного плазменного сгустка
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Письмо в редакцию. Энергетическое распределение ионов
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