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DOI | 10.1016/j.chroma.2018.12.046 |
Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry | |
Hernaiz-Izquierdo, M.1; Galindo-Iranzo, P.1; Garcia-Armada, M. P.2; Saiz-Lopez, A.1; Gomara, B.3; Quintanilla-Lopez, J. E.1; Lebron-Aguilar, R.1 | |
发表日期 | 2019 |
ISSN | 0021-9673 |
EISSN | 1873-3778 |
卷号 | 1588页码:99-107 |
英文摘要 | Atmospheric iodine plays a relevant role in climate change. Bearing in mind that most of this iodine comes from the oceans, analytical methods capable of determining iodine in a challenging matrix as seawater are necessary. In this work, the first method capable of direct determination of total inorganic iodine in seawater at subnanomolar level based on mixed-mode liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS) without any sample treatment is presented. Analytical characteristics of the developed method were studied in terms of linear range, limits of detection and quantification, precision, trueness, matrix effect, and robustness. The detection limit for iodide was as low as 0.16 nM, injecting 5 mu L of seawater without any sample treatment and the working linear range of four orders of magnitude was wide enough to cover the broad concentration range observed in seawater samples. Average values for repeatability and intermediate precision were 4.1% and 8.1%, respectively. The suitability of the method was demonstrated through its application to the analysis of several types of samples, including seawater samples taken at different locations along the Spanish Mediterranean coast and some domestic iodized salts. According to the results obtained, the method developed is rapid, easy to apply and to be automated, avoids sample treatment and requires only few microliters of sample. Furthermore, it has a low detection limit and allows the quantification of inorganic iodine over a wide concentration range. (C) 2018 Elsevier B.V. All rights reserved. |
WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
来源期刊 | JOURNAL OF CHROMATOGRAPHY A
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/94969 |
作者单位 | 1.CSIC, Inst Phys Chem Rocasolano IQFR, Dept Atmospher Chem & Climate, Serrano 119, Madrid 28006, Spain; 2.Escuela Tecn Super Ingn Ind UPM, Dept Ind Chem Engn, Jose Gutierrez Abascal 2, Madrid 28006, Spain; 3.CSIC, Dept Instrumental Anal & Environm Chem, Inst Gen Organ Chem IQOG, Juan Cierva 3, Madrid 28006, Spain |
推荐引用方式 GB/T 7714 | Hernaiz-Izquierdo, M.,Galindo-Iranzo, P.,Garcia-Armada, M. P.,et al. Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry[J],2019,1588:99-107. |
APA | Hernaiz-Izquierdo, M..,Galindo-Iranzo, P..,Garcia-Armada, M. P..,Saiz-Lopez, A..,Gomara, B..,...&Lebron-Aguilar, R..(2019).Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry.JOURNAL OF CHROMATOGRAPHY A,1588,99-107. |
MLA | Hernaiz-Izquierdo, M.,et al."Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry".JOURNAL OF CHROMATOGRAPHY A 1588(2019):99-107. |
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