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  • Royal Society of Chemistry  (1)
  • Science Faculty of Chiang Mai University  (1)
  • 2000-2004  (2)
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Year
  • 1
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    Field-Based Analytical Techniques for Aquatic Environmental Monitoring (2003)
    Science Faculty of Chiang Mai University
    In:  Chiang Mai Journal of Science, 30 (3). pp. 153-164.
    Details
    Publication Date: 2020-07-27
    Description: There is a growing need for rapid and reliable but relatively low cost techniques that can be remotely deployed to provide high quality environmental data. This paper describes the use of flow injection (FI) based instrumentation for aquatic environmental monitoring. FI techniques now impact on a wide cross section of analytical chemistry activities, providing imaginative and practical solutions to challenging analytical problems and contributing to the improvement of data quality. Two specific applications are described. The first is the use of flow injection with spectrophotometric detection (FI-SPEC) for the determination of nitrogen and phosphorus species in catchments, estauries and sediments in order to investigate the impact of nutrients on water quality and provide decision support systems for catchment management. The second is the use of flow injection with chemiluminescence detectin (FI-CL) for the determination of micronutrients (particularly iron) in remote, open ocean environments. As a rate limiting nutrient, iron plays a key role in ocean productivity and climate change. The importance of 'clean' analytical protocols in order to provide high quality environmental data are also cosidered
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
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    Unknown
    Electrospray ionisation-mass spectrometry of hydroxamate siderophores (2001)
    Royal Society of Chemistry
    In:  Analyst, 126 (8). pp. 1359-1362.
    Details
    Publication Date: 2017-05-30
    Description: Electrospray ionisation-mass spectrometry (ESI-MS) was applied to the detection of the iron complexes of the hydroxamate type siderophores ferrioxamine (FO), ferrichrome (FC) and iron(iii) rhodotoluate (FR). Mass spectra of the three siderophores produced by ESI-MS were dominated by the protonated (M + 1)(+) parent ions, except for FR at pH 4.3, which was present as the positively charged 1: 1 complex. On collision with He ions, fragmentation proceeded largely via cleavage of C-N bonds. Flow injection analysis of the siderophores with detection by ESI-MS produced detection limits of 1.9 fmol for FO, 31.1 fmol for FC and 524 fmol for FR.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1039/b101268l
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Article in a Scientific Journal - peer-reviewed
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