Workshop GC
ULTRAFAST GC + GC/MS: GC Analysis in Minutes or Seconds (Concept of FAST GC, Technical Requirements, Examples)
Dr. Robert Stoop, Brechbühler AG
GC is an established technique which is widely spread out in all the labs. Yet not much has been said about the GC Techniques recently although there is still enough development going on worth to be mentioned.
One of these newer techniques is the ULTRAFAST GC which allows to cut GC analysis times down to seconds or a few minutes! ULTRAFAST is not just simple FAST GC. In this workshop the different techniques conventional, fast and ULTRAFAST GC will be compared with each other. The possibilities of the ULTRAFAST GC method and it’s application in practice will be further discussed in this workshop.
Gas Generators for the Use in Gas Chromatography
Joyce Link, Milian SA
Gas generators have become a widely accepted substitute for expensive and dangerous gas cylinders in the laboratory. Not only has the safety aspect led people to decide on using the gas generator; it’s especially the high quality with which gas is generated – ultra pure and almost absolutely dry. Be it as feed gas for the FID, ensuring lowest possible background noise, or as carrier gas - it definitely enhances reproducability of your detections.
With the aid of the Parker Balston Gas Generator, we will show you how compact, reliable and easy to maintain today's gas generators can be, and that they fully comply with the laboratory quality standards and regulations.
MassLib exploite mieux les analyses
Peter Kofel, MSP Kofel
La spectrométrie de masse, aussi bien qu’elle est établie comme méthode pour la détermination du poids moléculaire, est rarement appliquée pour l’élucidation de la structure chimique. La raison est bien simple : trop fastidieux et difficile paraît le processus de l’interprétation du spectre au non-spécialiste et plutôt non-utilisable pour ce processus se présentent les logiciels basés sur des recherches de spectres en bibliothèques.
MassLib en est une exception : ses recherches en similarité offrent de reconnaître des aspects structuraux même si les spectres nous paraissent fortement dissimilaires. Des recherches de fragments, neutres et structures en combinaison permettent d’attaquer le problème de structure inconnue aussi là où aucune quantité suffisante d’échantillon permettrait d’autres méthodes que la spectrométrie de masse.
Pour l’exploitation des analyses de spectrométrie de masse avec MassLib non seulement des traces internes (par exemple des traces single ion) et externes (par exemple des traces de température) peuvent être utilisées, mais aussi des analyses de comparaison. La comparaison d’analyses entières assistée par le logiciel permet de reconnaître et d’interpréter des différences rapidement même si deux analyses sont très similaires.
Workshop HPLC
Validation of Detectors made easy
Nicole Stutz, Celectole
Thanks to their good training, lab technicians know how to replace spare parts in HPLC- and GC Systems and how to check that the systems keeps running conform to regulations.
eg. exchanging a deuterium lamp in an HPLC Detector and testing the correct UV wavelenght.
It is important to avoid mistakes and to document each step taken. We will introduce a software which provides HPLC and GC users with an excellent tool.
Examples for the HPLC user are testing:+ correct flowrate
+ correct gradient
+ correct UV-wavelength
+ linear UV-adsorbtion
+ correct temperature of the column oven
+ correct functioning of the autosampler
With the test for a correct flowrate, we will explain the software and the test report in detail.
You can choose a test to test the advantages of the software yourself.
Chiral Method Development
Dr. Annette Dibowski, YMC GmbH, Dr. Harald Dibowski, YMC GmbH
The separation of enantiomeric substances is challenging, because these compounds have similar characteristics in a non-chiral enviroment. Therefore melting points, chemical and spectroscopic characteristics are identical. As a result these enantiomers can not be separated under standard normal phase or reversed phase chromatographical conditions. In a chiral enviroment these chiral substances behave differently, which can be used for the separation of enantiomeric compounds.
For a better understanding of the different separation mechanisms with so called Chiral Stationary Phases these selectivities can be divided into types according to their different interaction mechanisms and supports (e.g. silica, cellulose etc.).
All individual types will be discussed and examples for CSPs and corresponding applications will be shown. The most important conditions for successful chiral separations will be presented. |