Premium
Quantitative determination of melphalan DNA adducts using HPLC—inductively coupled mass spectrometry
Author(s) -
Edler Michael,
Jakubowski Norbert,
Linscheid Michael
Publication year - 2006
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.1009
Subject(s) - chemistry , adduct , chromatography , mass spectrometry , electrospray ionization , high performance liquid chromatography , electrospray , melphalan , organic chemistry , multiple myeloma , immunology , biology
For the quantification of Melphalan DNA adducts, an analytical approach based on the detection of phosphorus using liquid chromatography combined with inductively‐coupled‐plasma mass spectrometry (ICP‐MS) was developed. In reaction mixtures of native 2′‐deoxynucleotides‐5′‐monophosphates and Melphalan, which were separated using reversed phase chromatography, phosphate adducts were found as the most abundant modifications. Besides the phosphate adducts, several base alkylated adducts were observed. In calf thymus DNA incubated with Melphalan and enzymatically digested using Nuclease P1, the phosphate adducts as well as monoalkylated dinucleotides were found. The most abundant single Melphalan adduct observed in DNA was a ring‐opened adenosine monophosphate. Some dinucleotide adducts and the adenosine adduct were identified using electrospray ionization mass spectrometry (ESI‐MS). Copyright © 2006 John Wiley & Sons, Ltd.