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August/September 2011
Professor Peter Myers (University of Liverpool, UK) also talked fondly of his associations with Uwe Neue and in the spirit of their mutual love for innovation gave a talk on “HPLC on a Compact Disc”. Channels are etched into a compact disc and capillary tubes packed with silica are placed into the grooves. The sample is placed in a chamber and is held behind a break valve which is melted by the standard CD player laser. The sample is moved through the column using centripetal force and is detected using the standard CD laser detection which identifies compounds leaving the column as 'errors'. These error counts can be converted into something like a chromatogram through digitisation.
L to R: Speakers McCalley, Lindner and (seated) ChromSoc Vice-President, Paul Ferguson
sytem for open-access chemist use. Samples are input with a small amount of data on a terminal linked to the L2L system. The sample vial is placed in a holder and placed into the loading unit which is moved through tubing via compressed air to a router. The router is intelligent enough to know which systems are idle and send the sample to an appropriate instrument for analysis. This system is scalable to any lab size. In tours the following day, delegates were able to view this system in operation.
In the evening the majority of the delegates attended a dinner at the nearby Ghyll Manor Hotel. A convivial time was had by all. While
this year the assembled throng was spared an after-dinner speech, ChromSoc Vice- President, Paul Ferguson, addressed to group to say a little about the Society and to thank the speakers and sponsors.
The opening sessin of Day 2 was a tribute to the late Dr Uwe Neue and featured speakers who had worked closely with him over recent years before his untimely death in December, 2010. Uwe’s colleague Pam Iraneta (Waters, Chemistry Operations, USA), “Eulogy to Uwe Neue - Key chromatographic contributions” highlighted the contributions of Uwe Neue to chromatography and in particular to the Waters business.
James Heaton (Kings College London, UK) is a final year research student in Norman Smith’s Waters-supported group at Kings and, as such, had frequently been mentored by Uwe Neue. In his talk “Investigation into the effect and utility of temperature in ultra high performance liquid chromatography” James described the importance of temperature on the ‘C’ term of the van Deemter equation (mass transfer kinetics). He suggested that the volume of the Polaratherm pre-heater is too large for efficient mobile phase heating. For efficient heat transfer in/out of the column, a large surface area to column volume ratio is required which is achieved by decreasing the column i.d.. When moving from a 0.084” (standard) to 0.026” column wall thickness an increase in retention was observed for some molecules with increasing temperature which was attributed to a change in the partial molar
Symposium dinner was notable for good attendance of student delegates
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