| | | | | | | | Comparison Techniques for HPLC Column Performance
| | | By
Gert Desmet
| | | This article investigates the different methods that can be used to compare the performance of liquid chromatography LC columns to assess the advantage of using them at high pressures and/or high temperatures. The main focus is on the kinetic plot method. This method, which is based on two simple equations, allows the user to transform the more common Van Deemter curve into a curve describing the ultimate separation speed as a function of the required plate number, or the required peak capacity or the required resolution.
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| | | | | | | Do's and Don'ts
| | | By
John V. Hinshaw
| | | Successful gas chromatography (GC), akin to many other disciplines, requires regular attention to a number of routine procedures. Chromatographers, similar to anyone else, develop habits in their daily work. Some of these help create a successful laboratory environment, while others can be ineffective or worse, and can create more problems than they solve. This month, "GC Connections" presents a few of the best and worse laboratory habits.
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