The study of 2,3,4-trihydroxyacetophenone and 2,4,6-trihydroxyacetophenone as matrices for DNA detection in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
Rapid Commun Mass Spectrom
; 10(3): 383-8, 1996.
Article
in En
| MEDLINE
| ID: mdl-8949485
ABSTRACT
The matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectrometric study of DNA detection using 2,3,4-trihydroxyacetophenone, 2,4,6-trihydroxyacetophenone, and their combination has been carried out systematically. The results show that a mixture of 2,4,6-trihydroxyacetophenone, 2,3,4-trihydroxyacetophenone and ammonium citrate with molar ratios of 211 serves as a good matrix for the detection of DNA, especially for samples containing a small quantity of DNA such as polymerase chain reaction product. The resolution and shot-to-shot reproducibility using this matrix are better than, and the MALDI sensitivity comparable to, that obtained when using 3-hydroxy picotinic acid (3-HPA), PA and ammonium citrate matrix (911). The mechanism of desorption/ionization using this matrix is discussed.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
DNA
Type of study:
Diagnostic_studies
Language:
En
Journal:
Rapid Commun Mass Spectrom
Year:
1996
Document type:
Article
Affiliation country:
Estados Unidos