In our February issue:
COLUMNS
LC TROUBLESHOOTING
Slow Column Equilibration
Why are LC retention times sometimes so slow to stabilize? John Dolan explains more. |
COLUMN WATCH
Retention of Stationary Phases in HILIC
HILIC is a complex system involving partition, polar, and ion-exchange interactions. Method development can be greatly facilitated by understanding the interactions that the different stationary phases provide and applying that knowledge to the separation task at hand. |
QUESTIONS OF QUALITY
Life Cycle Assessment of HPLC Instruments
This instalment of "Questions of Quality" looks at problems with an operational liquid chromatograph to see if they can be picked up in the performance qualification (PQ) or prevented in the operational qualification (OQ). |
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Sorbent sampling tubes for thermal desorption
For VOC and SVOC analysis from air and solids. Manufactured to the highest quality & fully quality-controlled. Provide optimum sampling & analytical performance. Available in metal, inert-coated or glass with a wide range of packing materials. Compatible with all major thermal desorption instrument manufacturers. For further information on Markes sampling tubes click here. |
BIOTECHNOLOGY TODAY
Protein Characterization with Fluorescence–Size-Exclusion Chromatography
This instalment discusses fluorescence-detection size-exclusion chromatography technology and its implications in protein characterization. |
THE ESSENTIALS
GC Column Selection
Rules for selecting an appropriate GC stationary phase are presented. |
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PEER-REVIEWED ARTICLES
Fast GC–MS–MS Analysis of Environmental Contaminants in Fish
A rapid, high-throughput analytical method was developed and evaluated for the simultaneous determination of pesticides and environmental contaminants in fish. |
UHPLC Analysis of Complex Pharmaceuticals
Experimental results and method validation data from two analytical case studies of complex small molecule pharmaceuticals illustrate the utility and advantages of UHPLC in high-resolution separations. |
