D. H. Desty D. H. Desty was one of the early pioneers in gas chromatography and studied chemistry at University College, Southampton. In 1941 he volunteered for service in the Royal Air Force and after the war returned to his university in 1946, graduated with honors in chemistry. and joined the British Petroleum Research Center at Sunbury on Thames, England. While at Sunbury he made a wide range of contributions to science for which, he was honored by the Queen with the Order of the British Empire (1983) and was aldo elected Fellow of the Royal Society in 1984.. He also received many other awards specifically for his contributions to chromatography, After he left Sunbury he was appointed visiting professor at the University of Surrey and lectured widely on his various accomplishments and, in particular, his work in chromatography. Dennis Desty’s interests in gas chromatography involved detectors, column design and instrument design but his greatest contribution was his soft glass rigid capillary columns and a novel device to construct them. His glass capillary columns where the forerunners of the modern fused silica capillary columns that are almost universally used today. He was also the founder of the Gas Chromatography Discussion Group and served in numerous ways on its organizing committee for many years.
Author: RPW Scott
Book:Gas Chromatography Detectors
Section:GC-Detectors References
The Times Science Review, Summer (1955)8. 6. C. W. Munday and G. R. Primavesi, "Vapor Phase Chromatography", (Ed. D.H. Desty and C. L. A. Harbourn), ButterworthsScientific Publications,(1957)146. 7. N. H. Ray, J. Appl. Chem., 4(1954)21. 8. R. P. W. Scott, "Vapor Phase Chromatography" (Ed. D.H. Desty and C. L. A.Harbourn), Butterworths Scientific Publications, (1957)131. 9. H. Boer, "Vapor Phase Chromatography" (Ed. D.H. Desty and C. L. A. Harbourn), Butterworths Scientific Publications (1957)169. 10. D. W. Grant, "Gas Chromatography 1958" (Ed. D. H. Desty), Butterworths Scientific Publications, (1957)153. 11. N. H. Ray, J. Appl. Chem., 4(1954)21. 12. 1. J. Harley, W. Neland V. Pretorious, Nature, London, 181(1958)177. 13. I. G. McWilliams and R. A. Dewer, "Gas Chromatography 1958", (Ed. D. H.Desty), Butterworths Scientific Publications 14. S. A.
Author: RPW Scott
Book:Capillary Chromatography
Section:Capillary References
Inst. Petrol., 287(1959)45. 4. R. D. Dandedau and E. M. Zenner, J. High Res. Chromatography, 2(1979)351. 5. K.L.Ogan, C. Reese and R. P. W. Scott, J. Chromatogr. Sci., 20(1982)425. 6. J. Harley, W. Nel and V. Pretorious, Nature, London, 181(1958)177. 7. I. G. McWilliams and R. A. Dewer, "Gas Chromatography 1958", (Ed. D. H. Desty), Butterworths Scientific Publications (1957)142. 8. R. P. W. Scott, "Vapor Phase Chromatography" (Ed. D.H. Desty and C. L. A.Harbourn), Butterworths Scientific Publications, (1957)131. 9. C. E. Reese, Ph. D. Thesis, University of London (Birkbeck
Author: RPW Scott
Book:Gas Chromatography Detectors
Section:GC-Detectors Response-Mechanism
nbsp; Desty et al. also showed that the air flow should be at least 6 times that of the hydrogen flow for stable conditions and completecombustion. They also demonstrated that thebasecurrentfromthehydrogenflowdepends strongly onthepurityofthehydrogen. As would be expected, tracesof hydrocarbons significantly increase the base current. Consequently, very pure hydrogen should be employed with the FID if maximum sensitivity is required. Employing purified hydrogen Desty et al. reported a base current of
Author: RPW Scott
Book:Capillary Chromatography
Section:Capillary Introduction History
nbsp; They employed a similar device as that invented by Desty but the drawing roller was extended below the drawing oven to allow the insertion of two coating nozzles and two drying ovens. The polymer they employed was Pyralin PI-2550 (Dupont) and was used neat or as a solution n N-methyl-2-pyrrolidone. Previous experience with the rigid columns of Desty provided suitable deactivating and coating techniques and the low activity of the surface is confirmed by the chromatograms shown in figure 4. The typical base/acid pair, 2,4-dimethylaniline
Author: RPW Scott
Book:Preparative Chromatography
Section:Preparative References
J. Chromatogr. Sci., 10(1972)654. 5. S. Golshan-Shirazi, A. Jaulmes and G. Guiochon, Anal. Chem., 60(1988)1856. 6. S. Golshan-Shirazi, A. Jaulmes and G. Guiochon, Anal. Chem., 61(1989)1276. 7. S. Golshan-Shirazi, A. Jaulmes and G. Guiochon, Anal. Chem., 61(1989)1368. 8. J. M. Miller and R. Strusz, Am. Lab. Jan(1970)29. 9. T. Filipi US Patent 4175037 Nov 20 the 1979. 10. M. Freund, P. Benedek and L. Szepesy, Vapour Phase Chromatogrphy, (Ed. D. H. Desty) Butterworths Scientific Publications, London, (1957)359. 11.10. R. P. W. Scott, Gas Chromatogrphy 1958, (Ed. D. H. Desty) Butterworths Scientific Publications, London, (1958)287. 12. R. P. W. Scott and R. J. Maggs, Benzole Producers Research Paper, 5–1960. 13. P. E. Barker Preparative Gas Chromatography, (Ed. A. Zlakiz and V. Pretorious) Wiley Interscince, London, (1971)325. 14. P. E. Barker and R. E. Deeble, Anal. Chem., 45(1973)1121. 15. R. Hurrel,
Author: RPW Scott
Book:Gas Chromatography
Section:GC GC-Columns Capillary
Desty et al. (4), tried to eliminate the activity of the open tubular column surface by developing the first silica-based columns and invented an extremely clever device for drawing soft glass capillaries. Desty produced both circular rigid soft glass and circular rigid Pyrex capillary columns, but their permanent circular shape, made them difficult to fit to unions connecting columns to injector and column to detector. By careful surface treatment the rigid glass tubes could be coated
