Abstract
A flow injection analysis system was built with a liquid core waveguide spectrophotometric detector using an 80 cm Teflon AF-1600 capillary tube (2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxole/tetrafluoroethylene). The system was applied to determine nitrite ion in river water samples. The lower limit of detection for nitrite was 2.1 nmol dm–3 (0.1 ng dm–3 as NO2–) and the relative standard deviation of measurements was typically 0.56% (n = 5) at 0.21 μmol dm–3.
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Takiguchi, H., Tsubata, A., Miyata, M. et al. Liquid Core Waveguide Spectrophotometry for the Sensitive Determination of Nitrite in River Water Samples. ANAL. SCI. 22, 1017–1019 (2006). https://doi.org/10.2116/analsci.22.1017
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DOI: https://doi.org/10.2116/analsci.22.1017