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published_or_final_version / Dentistry / Doctoral / Doctor of Philosophy

Thesis (Ph.D.)--University of the Witwatersrand, Faculty of Health Sciences, 1997.

Ho Chak Ming. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leaves 122-126). / Acknowledgment --- p.i / Table of contents --- p.ii / List of figures --- p.iv / List of tables --- p.v / Abstract --- p.ix / Chapter Part I --- Determination of sulphide / General introduction --- p.1 / Spectrophotometric determination of sulphide --- p.5 / Chapter 1. --- Introduction --- p.5 / Chapter A. --- Review of the reported methods for the determination of sulphide --- p.5 / Chapter B. --- General description of the proposed method --- p.13 / Chapter 2. --- Experimental section --- p.18 / Chapter A. --- Preservation of samples --- p.18 / Chapter B. --- Sample pre-treatment --- p.19 / Chapter C. --- Separation/preconcentration of sulphide --- p.19 / Chapter D. --- Spectrophotometric determination of sulphide by proposed method --- p.24 / Chapter E. --- Spectrophotometric determination of sulphide by standard methylene blue method as the counter-check method --- p.32 / Chapter 3. --- Results and discussions --- p.34 / Chapter A. --- Optimization of the proposed spectrophotometric method --- p.34 / Chapter B. --- Optimization of the separation/preconcentration methods --- p.45 / Chapter C. --- Construction of the calibration graph for the spectrophotometric determination of sulphide and determination of the molar absorptivity coefficient --- p.53 / Chapter D. --- Precision and detection limit of the proposed spectrophotometric method --- p.54 / Chapter E. --- Interferences studies of the proposed method --- p.56 / Chapter F. --- Spectrophotometric determination of sulphide in water --- p.60 / Chapter G. --- Spectrophotometric determination of sulphide in beers --- p.63 / Chapter H. --- Spectrophotometric determination of sulphide in orange juices --- p.66 / Chapter 4. --- Conclusions --- p.68 / References --- p.70 / Chapter Part II --- Determination of fluoride / General introduction --- p.75 / Spectrophotometric determination of fluoride --- p.78 / Chapter 1. --- Introduction --- p.78 / Chapter A. --- Review of the reported methods for the determination of fluoride --- p.78 / Chapter B. --- General description of the proposed scheme for the spectrophotometric determination of fluoride in animal feeds --- p.84 / Chapter 2. --- Experimental Section --- p.87 / Chapter A. --- Ashing of the animal feed samples --- p.87 / Chapter B. --- Reduction of interferences in the ashed sample solutions using anion exchange resin --- p.89 / Chapter C. --- Preparation of solutions for the calibration graph and the ashed sample solutions for the spectrophotometric measurement --- p.90 / Chapter D. --- Spectrophotometric determination of fluoride in the ashed samples --- p.92 / Chapter E. --- Potentiometric determination of fluoride in the ashed sample solutions by the FISE method as the counter-check method --- p.93 / Chapter 3. --- Results and discussions --- p.94 / Chapter A. --- Ashing conditions of the animal feed samples --- p.94 / Chapter B. --- Removal of the interferences in the ashed sample solutions --- p.99 / Chapter C. --- Construction of the calibration graph for the spectrophotometric determination of fluoride --- p.112 / Chapter D. --- Precision of the spectrophotometric method --- p.113 / Chapter E. --- Spectrophotometric determination of fluoride in animal feeds --- p.114 / Chapter F. --- Potentiometric determination of fluoride in animal feeds by the FISE method as the counter-check method --- p.117 / Chapter 4. --- Conclusions --- p.120 / References --- p.122

Thesis--University of Florida, 1970. / Manuscript copy. Vita. Description based on print version record. Bibliography: leaves 191-199.

Thesis (doctoral)--Rijksuniversiteit te Utrecht.

The importance of fluorine in nutrition is related to its presence in small amounts in most foods and water supply and in all tissues of the body, particularly in bones and teeth. Throughout the 19th and early 20th centuries, fluorine was considered to be a poison. Scientific articles dealt with its toxic properties when used in preservatives and pesticides and with the ill-effects of extremely high concentrations of fluoride in drinking water and in industrial processing. [...]

Thesis (Ph.D.)--University of Adelaide, Dental School, 2005. / Title from title page of source document (viewed July 20 2005). Bibliography: p. 232-243. Also available in print.

Thesis (M. Phil.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 129-151) Also available in print.

Thesis (M. D. S.)--University of Hong Kong, 2008. / Also available in print.