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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 3 of 3 (0.031 seconds)Spelling suggestions: "subject:"chromium - aanalysis."" "subject:"chromium - 2analysis.""
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Two photometric methods for the determination of chromium in biological materialsYarbro, Stanley Keith 08 1900 (has links)
No description available.
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The determination of mercury in sediment, river water and seawater samples, and the determination of Cr(VI) in river water岑永昌, Sham, Wing-cheong. January 1991 (has links)
published_or_final_version / Chemistry / Master / Master of Philosophy
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Ion Chromatography of Soluble Cr(III) and Cr(VI)Huang, Julie Shiong-Jiun 08 1900 (has links)
Ion chromatography coupled with a conductivity detector was used to investigate the analysis of Cr(III) and Cr(VI) in aqueous samples. An IC methodology for Cr(III) was developed using a cation column and an eluent containing tartaric acid, ethylenediamine, and acetonitrile at pH 2.9. The detection limit of this method can reach 0.1 ppm level with good precision. Several operational parameters were evaluated during the regular use of the method. Comparison of the IC method with AA method showed good agreement between the two methods. The anion exchange column was used for Cr(VI) determination. The best results were obtained with an eluent containing sodium gluconate, borate buffer, glycerin, and acetonitrile. The retention time for the Cr207 2 - sample was 11 min. and the calibration curve was linear between 1.0 and 100 ppm.
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