Journal
ANALYTICA CHIMICA ACTA
Volume 803, Issue -, Pages 15-40Publisher
ELSEVIER
DOI: 10.1016/j.aca.2013.06.015
Keywords
Marine waters; Estuarine waters; Macronutrients; Micronutrients; Flow injection analysis; Data quality
Categories
Funding
- EMRP (Metrology for ocean salinity and acidity) [JRP-ENV05-REG1, JRP-ENV05]
- EMRP
- NERC [NE/H004475/1] Funding Source: UKRI
- Natural Environment Research Council [NE/H004475/1] Funding Source: researchfish
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Macronutrient elements (C, N and P) and micronutrient elements (Fe, Co, Cu, Zn and Mn) are widely measured in their various physico-chemical forms in open ocean, shelf sea, coastal and estuarine waters. These measurements help to elucidate the biogeochemical cycling of these elements in marine waters and highlight the ecological and socio-economic importance of the oceans. Due to the dynamic nature of marine waters in terms of chemical, biological and physical processes, it is advantageous to make these measurements in situ and in this regard flow injection analysis (FIA) provides a suitable shipboard platform. This review, therefore, discusses the role of FIA in the determination of macro-and micro-nutrient elements, with an emphasis on manifold design and detection strategies for the reliable shipboard determination of specific nutrient species. The application of various FIA manifolds to oceanographic nutrient determinations is discussed, with an emphasis on sensitivity, selectivity, high throughput analysis and suitability for underway analysis and depth profiles. Strategies for enhancing sensitivity and minimizing matrix effects, e.g. refractive index (schlieren) effects and the important role of uncertainty budgets in underpinning method validation and data quality are discussed in some detail. (C) 2013 Elsevier B. V. All rights reserved.
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