T R CromptonDr Thomas Roy Crompton is a consultant and writer based in Anglesey, UK. After 30 years as head of the Analytical Research Laboratory at Shell Chemicals UK, he subsequently became head of Water Analysis Laboratories in the UK, and remained in this poition for 15 years prior to his retirement. Dr.Crompton has published over 50 books for chemists and environmental scientists on topics ranging from polymers and power sources to organometallic compounds and environmental sample analysis. His areas of expertise include analysis of natural and sea waters, soils, sediments and sludge, preconcentration techniques in water analysis application of chromatography, and mass spectrometry to water analysis. Read More Read Less