Journal
ACTA OCEANOLOGICA SINICA
Volume 41, Issue 3, Pages 103-108Publisher
SPRINGER
DOI: 10.1007/s13131-021-1921-0
Keywords
iodate; liquid waveguide capillary cell; spectrophotometric determination
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Funding
- Zhangzhou Natural Science Foundation of Fujian [ZZ2020J29]
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A new spectrophotometric method based on liquid waveguide capillary cell has been developed for enhanced detection of nanomolar iodate concentrations. This method has a low detection limit, high precision, and good recovery rates in a wide range of concentrations.
A new spectrophotometric method based on a liquid waveguide capillary cell for an enhanced detection was developed to measure nanomolar iodate concentrations. This method has a detection limit and precision of 1-2 nmol/L, which is equivalent to 10% that of conventional methods, a recovery of 97.7%-104.0%, and a working range of 10-120 nmol/L. Water samples were collected from three estuaries and one coastal ocean for testing, and the proposed technique detected as low as 11 nmol/L and 18 nmol/L iodate in these samples. This newly developed method is helpful in understanding the biogeochemical cycle of iodine in nature.
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