• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • 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.
1

GTP metabolism in vertebrate retinal receptors

Chittock, R. S. January 1985 (has links)
No description available.
2

Development of analytical methods for the analysis of selected â-agonists, stilbenes and resorcyclic acid lactones in biological matrices

Lau, Joseph Hon-Wai, University of Western Sydney, College of Health and Science, School of Biomedical and Health Sciences January 2007 (has links)
An analytical method was developed for the determination of the â-agonists clenbuterol, cimaterol and salbutamol in bovine retina. The method involved extraction into a pH 8.5 tris-HCl buffer, followed by protease enzyme digestion and immunoaffinity column cleanup before analysis by liquid chromatography with tandem mass spectrometry detection LC/MS/MS. The LOD for clenbuterol, salbutamol and cimaterol were 0.64, 1.20 and 1.92 ng/g respectively. The identities of the analytes were able to be confirmed to an acceptable standard. An analytical method was also developed for the analysis of the â-agonists clenbuterol, salbutamol, cimaterol, ractopamine, and mabuterol in bovine urine and emu muscle. The urine and muscle samples were digested with â-glcuronidase enzyme and cleaned up using a Bond Elute Certify SPE. The extracts were analysed by LC/MS/MS. Deuterated internal standards were used for quantitation. The LOD for urine [less than] 1ng g and for emu muscle it was [less than] 0.3 ng/g. The last part of the work describes the simultaneous gas chromatography-mass spectrometric analysis of diethylstilbestrol DES, hexestrol HEX, dienestrol DIEN, zeranol ZER, taleranol TAL and zeralenone ZON in fresh full cream and fresh skim milk. The analytes were analysed as their trimethyl silane (TMS) derivatives. A three phase solvent system was used for extraction and the extract was cleaned up using a combination of the anion exchange and hydrophobic properties of an anion exchange SPE. The detection limits for DES, DIEN, HEX, ZER, TAL and ZON were 9.6, 9.6, 16.8 , 7.2 , 13.5 and 34.8 ng/L respectively. / Doctor of Philosophy(PhD)

Page generated in 0.0693 seconds