- D. Trew, Obstructing Regulatory Inspections, 2016, http://www.askaboutgmp.com/obstructing-regulatory-inspections and http://www.askaboutgmp.com/obstructing-regulatory-inspections-part-2
- D. Trew, Laboratory Audits, On-Line Electronic Learning Course, 2016, http://learnaboutgmp.com/elearning/laboratory-audits/
- D. Trew, Top 10 Tips When Preparing for a Laboratory Audit, 2015, http://www.askaboutgmp.com/top-10-tips-when-preparing-for-a-laboratory-audit
- D. Trew, Organisation, Roles and Infrastructure for Regulated Laboratories, On-Line Electronic Learning Course, 2015, http://learnaboutgmp.com/elearning/organisation-roles-and-infrastructure-for-regulated-laboratories/
- D. Trew, Laboratory Investigations & Deviations, On-Line Electronic Learning Course, 2015 http://learnaboutgmp.com/elearning/laboratory-investigations-deviations/
- D. Trew, How Laboratory Testing should be Performed in a Quality Regulated Environment, 2015, http://www.askaboutgmp.com/how-laboratory-testing-should-be-performed-in-a-quality-regulated-environment
- D. Trew, Performing Analysis in a Regulated or Accredited Laboratory, On-Line Electronic Learning Course, 2015, http://www.learnaboutgmp.com/e-learning/performing-analysis-in-a-regulated-or-accredited-laboratory
- D. Trew, The Purpose of a Laboratory Quality Assurance Program (QAP), 2015, http://www.askaboutvalidation.com/the-purpose-of-a-laboratory-quality-assurance-program-qap
- D. Trew, An Introduction to Current Good Laboratory Practice (cGLP), On-Line Electronic Learning Course, 2015, http://www.learnaboutgmp.com/e-learning/an-introduction-to-current-good-laboratory-practice-(cglp)
- D. Trew, Controlling Chromatographic Integration in a Regulated or Accredited Laboratory, 2015 http://www.askaboutgmp.com/controlling-chromatographic-integration-in-a-regulated-or-accredited-laboratory
- D. Trew, Requirements to Assure the Integrity of Laboratory Records & Data,2014, http://www.askaboutgmp.com/requirements-to-assure-the-integrity-of-laboratory-records-data
- D. Trew, An Easy to Understand Guide to Current Good Laboratory Practice (cGLP), Premier Validation, Nenagh, 2014 http://www.learnaboutgmp.com/book/an-easy-to-understand-guide-to-current-good-laboratory-practices-(cglp)-29
- D. Trew, Laboratory Data Integrity, On-Line Electronic Learning Course, 2014, http://www.learnaboutgmp.com/e-learning/laboratory-data-integrity
- D. Trew, The Application of Failure Mode Effects and Analysis (FEMA) to the Qualification of Laboratory Instrumentation, 2014 http://www.askaboutgmp.com/the-application-of-fmea-to-laboratory-instrument-qualification-risk-management and http://www.askaboutgmp.com/the-application-of-fmea-to-laboratory-instrument-qualification-risk-management-2, 31 May 2014
- D. Trew, An easy to Understand Guide to HPLC Validation, Premier Validation, Nenagh, 2013, http://www.learnaboutgmp.com/book/an-easy-to-understand-guide-to-hplc-validation-8
- I. Leader, P. Jupp, P. Weatherhead, V. Huynh, D. Trew, M. Handley, R. Donkor, D. Wheatley, The use of LC-MS in a forced degradation study of a novel molecule leading to the understanding of longer term drug product behaviour. Poster Presentation at 25 LC/MS Montreux Symposium 12-14 Nov 2008
- K. J. Box, R. E. Donkor, I. P. Leader, P. A. Jupp, D. F. Trew, C. H. Turner, J. Pharm. Biomed. Anal., 2008, 47, 301-311
- P. Jupp, D. Trew and C. Turner, NMR – An alternative method to measure pKa, Poster Presentation at FDA Science Forum, Washington D.C. 18-20 April 2006
- P. Jupp, P. Weatherhead, V. Huynh, D. Trew, C. Turner, T. Day, D. Wheatley, Separation, characterization and quantification of an unexpected degradant formed from tocopherol succinate polyethylene glycol using HPLC, LC-MS and NMR, Poster Presentation at FDA Science Forum, Washington D.C. 18-20 April 2006
- B. C. Challis, W. G. Guthrie, D.V. Roper, D. F. Trew, Chemical Compositions for Inhibiting Nitrosation Reactions in Toiletries and Cosmetics, United States Patent 5807542, 1998
- B. C. Challis, D. F. Trew, W. G. Guthrie, D.V. Roper, Int. J. Cosmet. Sci., 1995, 17, 119-131.
- B. C. Challis, W. G. Guthrie, D.V. Roper, D. F. Trew, Proceedings of the 18th International Congress of the International Federation of Societies of Cosmetic Chemists, Venice, 3-6 Oct 1994, volume 2, Pages 360-371.
- D. F. Trew, Analytical Methods for Non-Volatile N-Nitroso Compounds, PhD thesis, The Open University, 1992.
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