Version 1
: Received: 21 September 2018 / Approved: 21 September 2018 / Online: 21 September 2018 (08:29:11 CEST)
How to cite:
Du, X.; Ye, S.; Dong, D. Rapid Determination of Nitrite in Drinking Water Using Ion-Exchange-Enhanced Infrared Spectroscopy. Preprints2018, 2018090432. https://doi.org/10.20944/preprints201809.0432.v1
Du, X.; Ye, S.; Dong, D. Rapid Determination of Nitrite in Drinking Water Using Ion-Exchange-Enhanced Infrared Spectroscopy. Preprints 2018, 2018090432. https://doi.org/10.20944/preprints201809.0432.v1
Du, X.; Ye, S.; Dong, D. Rapid Determination of Nitrite in Drinking Water Using Ion-Exchange-Enhanced Infrared Spectroscopy. Preprints2018, 2018090432. https://doi.org/10.20944/preprints201809.0432.v1
APA Style
Du, X., Ye, S., & Dong, D. (2018). Rapid Determination of Nitrite in Drinking Water Using Ion-Exchange-Enhanced Infrared Spectroscopy. Preprints. https://doi.org/10.20944/preprints201809.0432.v1
Chicago/Turabian Style
Du, X., Song Ye and Daming Dong. 2018 "Rapid Determination of Nitrite in Drinking Water Using Ion-Exchange-Enhanced Infrared Spectroscopy" Preprints. https://doi.org/10.20944/preprints201809.0432.v1
Abstract
Infrared spectroscopy is an effective method for the determination of compositions and concentrations of liquids, with advantages of fast response, no-sampling, flexible in use and is able for on-line monitoring. However, for trace substances in drinking water, such as nitrates and heavy metals, infrared spectroscopy is not sensitive enough for the quantitative and qualitative measurement. In this study, we improved the sensitivity of infrared spectroscopy for nitrite determination by developing an ion-exchange-enhanced diffuse reflectance spectroscopy, which consist of an accessory based on ion-exchange resin for enrichment and a FTIR spectrometer for measurement. Using this method, the limit of detection for nitrate is 1.7 mg/L, which is enough for drinking water sensing. We also verified the quantitative measurement ability of the method. Furthermore, the limit of detection and quantitative measuring range could be adjusted by changing the mass of resin and adsorption time. This study demonstrated the method can be used to detect trace nitrites in drinking water, can be applied in the field, and is sensitive, rapid, and inexpensive with a wide dynamic range.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
