Determination of Siderophores in Seawater by High Performance Liquid Chromatography-Tandem Mass Spectrometry Coupled with Solid Phase Extraction / 分析化学
Chinese Journal of Analytical Chemistry
;
(12): 1285-1290, 2015.
Artigo
em Chinês
| WPRIM
| ID: wpr-481803
ABSTRACT
Siderophores were produced and secreted with marine microorganisms as the highly specific iron chelators. A method of liquid chromatography-tandem mass spectrometric detection coupled with solid phase extraction pretreatment was developed for the determination of siderophores in seawater. The samples were filtered through a 0. 22 μm membrane, extracted with an ENVI-18 cartridge and then eluted with methanol. The separation of the analytes was performed on a reversed phase SB-C18 column with a gradient elution program by using 0. 1% ( V/V) formic acid and methanol as the mobile phases. Qualitative analysis was performed in multiple-reaction monitoring mode. Good linearity (R2>0. 99) was obtained for Pyoverdines-Fe, Ferrichrome, Ferrioxamine E at the concentrations of 0. 001-3. 00 μg/mL, 0. 005-15. 00 μg/mL, 0. 001-3. 00 μg/mL, respectively. The instrumental detection limits and limits of quantification for the three analytes were 0. 08, 1. 76 and 1. 36 ng/mL; 0. 27, 5. 87 and 4. 53 ng/mL, respectively. The relative standard deviations were lower than 12%, while the recoveries were 12. 1%-18. 6% for Pyoverdines-Fe, 82. 0%-97. 7% for Ferrichrome, and 70. 0%-98. 3% for Ferrioxamine E.
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Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Pesquisa qualitativa
Idioma:
Chinês
Revista:
Chinese Journal of Analytical Chemistry
Ano de publicação:
2015
Tipo de documento:
Artigo
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