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Removal of organic interferences in analysis of nitrate in water by UV spectroscopy.

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dc.contributor.author Luo, Miaoju.
dc.date.accessioned 2012-06-05T13:12:50Z
dc.date.available 2012-06-05T13:12:50Z
dc.date.created 1999 en_US
dc.date.issued 2012-06-05
dc.identifier.uri http://hdl.handle.net/123456789/1190
dc.description vi, 57 leaves en_US
dc.description.abstract The determination of nitrate-nitrogen in water is difficult. The relatively complex procedure, the presence of interfering substances, and the limited concentration range of the various techniques all contribute to the difficulty. UV spectroscopy methods can be used, but they only determine approximate concentrations due to the organic compounds which can produce absorbances at the same wavelength as nitrate does. Once organic compounds can be removed, the accuracy of nitrate-nitrogen analysis by UV spectroscopy would be greatly improved. The main purpose of this research was to test methods for removal of organic compounds from water samples in order to improve the accuracy of the UV spectroscopy method for analysis of nitrate. Organic matter was not removed effectively by Prep-Sep C-18 Cartridges but was removed by XAD-4 resin. Pretreatment with XAD-4 produced results only slightly higher than the cadmium reduction method. en_US
dc.language.iso en_US en_US
dc.subject Water-Nitrogen content. en_US
dc.title Removal of organic interferences in analysis of nitrate in water by UV spectroscopy. en_US
dc.type Thesis en_US
dc.college las en_US
dc.advisor David C. Schroeder en_US
dc.department physical sciences en_US

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