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Preparation of deuterated abscisic acid metabolites for use in mass spectrometry and feeding studies

✍ Scribed by L. Irina Zaharia; Marek M. Galka; Stephen J. Ambrose; Suzanne R. Abrams

Publisher
John Wiley and Sons
Year
2005
Tongue
French
Weight
139 KB
Volume
48
Category
Article
ISSN
0022-2135

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✦ Synopsis

Four deuterium-labelled ABA catabolites of high isotopic purity were prepared for hormone profiling studies using HPLC-ESI-MS-MS. The catabolites, namely [7 0 ,7 0 ,7 0d 3 ]-PA, [7 0 ,7 0 ,7 0 -d 3 ]-DPA, [5,8 0 ,8 0 ,8 0 -d 4 ]-7 0 -hydroxyABA and [4,5,8 0 ,8 0 ,8 0 -d 5 ]-ABA glucose ester were prepared either by biotransformation or chemical synthesis starting with labelled ABA. The labelled compounds are employed as internal standards for plant hormone profiling by liquid chromatography-electrospray-tandem mass spectrometry.

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