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Determination of Specific Iron Chelator by Using LC-ICP-MS and LC-ESI-MS

Determination of Specific Iron Chelator by Using LC-ICP-MS and LC-ESI-MS
Determination of Specific Iron Chelator by Using LC-ICP-MS and LC-ESI-MS
Identification and quantification of siderophore type chelate was undertaken using recently developed high-performance liquid chromatography-mass spectrometry methods. Five different siderophore type chelates were detected and the compounds comprised of two groups; ferrioxamines. In the dissolved phase, three types of hydroxamate siderophore have been identified; Ferioxamine B (FOB), Ferrioxamine G (FOG) and ferrioxamine E (FOE). Concentration of dissolved FOB, FOG and FOE are extremely low between 0–135 x 10-18 M, and their distribution is spatially and temporally variable in this region. The concentration and diversity of siderophore type chelates determined during this study, was lower than those reported previously for dissolved ferrioxamine siderophore concentrations at lower latitudes in the Atlantic Ocean. The initial data from this study suggested that dissolved siderophores in this region is not an important fraction (< 0.1%) of the natural organic Fe(III) binding ligand pool.
1878-0296
30
256-261
Elsevier
Mohamed, Khairul Nizam
cda35815-d2dd-4f17-825e-fc0819f769b1
Gledhill, Martha
da795c1e-1489-4d40-9df1-fc6bde54382d
Mohamed, Khairul Nizam
cda35815-d2dd-4f17-825e-fc0819f769b1
Gledhill, Martha
da795c1e-1489-4d40-9df1-fc6bde54382d

Mohamed, Khairul Nizam and Gledhill, Martha (2015) Determination of Specific Iron Chelator by Using LC-ICP-MS and LC-ESI-MS. In Environmental Forensics 2015. Elsevier. pp. 256-261 . (doi:10.1016/j.proenv.2015.10.046).

Record type: Conference or Workshop Item (Paper)

Abstract

Identification and quantification of siderophore type chelate was undertaken using recently developed high-performance liquid chromatography-mass spectrometry methods. Five different siderophore type chelates were detected and the compounds comprised of two groups; ferrioxamines. In the dissolved phase, three types of hydroxamate siderophore have been identified; Ferioxamine B (FOB), Ferrioxamine G (FOG) and ferrioxamine E (FOE). Concentration of dissolved FOB, FOG and FOE are extremely low between 0–135 x 10-18 M, and their distribution is spatially and temporally variable in this region. The concentration and diversity of siderophore type chelates determined during this study, was lower than those reported previously for dissolved ferrioxamine siderophore concentrations at lower latitudes in the Atlantic Ocean. The initial data from this study suggested that dissolved siderophores in this region is not an important fraction (< 0.1%) of the natural organic Fe(III) binding ligand pool.

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Published date: 10 November 2015
Venue - Dates: International Conference on Environmental Forensics 2015 (iENFORCE2015), 2015-11-10
Organisations: Ocean and Earth Science

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Local EPrints ID: 401909
URI: http://eprints.soton.ac.uk/id/eprint/401909
ISSN: 1878-0296
PURE UUID: 7269b5ff-e874-45f0-948c-03547b87decf

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Date deposited: 21 Oct 2016 13:49
Last modified: 11 Dec 2021 12:14

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Contributors

Author: Khairul Nizam Mohamed
Author: Martha Gledhill

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