October 21st 2024
Michael G. Bartlett of the University of Georgia looked at how hydrophilic interaction liquid chromatography (HILIC) has evolved for oligonucleotide analysis in a new article.
Preparative Liquid Chromatography and the Manhattan Project
December 1st 1999This report summarizes activities performed during and after World War II at Oak Ridge National Laboratory and Iowa State University aimed at the separation of rare earths by ion-exchange chromatography on laboratory, pilot-plant, and industrial scales.
A Guide to Purchasing Used Chromatography Equipment
December 1st 1999More researchers are discovering that buying used laboratory equipment can be an effective way to reduce costs. An excellent supply of high-quality, used chromatography equipment is available on the market as a result of mergers and consolidations in biotechnology companies and downsizing in the environmental industry.
Superheated Water: A New Look at Chromatographic Eluents for Reversed-Phase HPLC
October 1st 1999The authors describe the results they've achieved by using water heated to 100–240 ºC as a liquid eluent for reversed-phase HPLC instead of an organic modifier. They point out that this alternative avoids many of the problems – toxicity, flammability, and cost – associated with organic modifiers.
Technical Note: Modifying a Standard HPLC Autosampler for On-Line Process Monitoring
September 1st 1999A simple modification of the standard HPLC autosampler flow path enables automated sampling and analysis of samples outside the autosampler unit when users cannot place the sample container inside because of size restrictions.
Fast HPLC Method Development Using Interfaced Photodiode-Array and Ion-Trap MS Detection
September 1st 1999With the goal of developing an analytical method for the fast analysis of vitamins in a complex matrix, the authors created a method that used in-line and complementary HPLC with photodiode-array and MS detection techniques.