Extraction and quantitative analysis of 1-aminocyclopropane-1-carboxylic acid in plant tissue by gas chromatography coupled to mass spectrometry.
We developed a new method for the determination of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) using quantitative GC-negative chemical ionisation MS as a detection and quantification system, in combination with isotope dilution using [2H4]ACC and an off-line solid-phase extraction. By derivatisation with pentafluorobenzyl bromide, ACC could easily be detected with m/z 280 being the most abundant ion. Determination of this component resulted in a detection limit of 10 fmol and a linear fit in the 100 fmol-100 pmol range. The combination of a rapid, high yield purification method with a stable derivatisation procedure and a sensitive detection method allowed the detection of ACC in samples as low as 100 mg fresh mass.
Department of Biology, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Antwerp, Belgium.
Rafaël
R
Smets
Veerle
V
Claes
Henri A
HA
Van Onckelen
Els
E
Prinsen
D000598:Amino Acids, Cyclic / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D010944:Plants / Q000737:chemistry*; D012680:Sensitivity and Specificity
D000598:Amino Acids, Cyclic; C023863:1-aminocyclopropane-1-carboxylic acid