Statistics for Laboratory Method Comparison Studies
January 15th 2002by Robert T. Magari, Beckman Coulter Corporation In laboratory testing, you may want to use a new analytical method for measuring a chemical substance. To do so, you must be able to prove that the new method gives the same results as the previous one. Not all statistical methods for making laboratory comparisons are equally valid.
Systematic Troubleshooting for LC/MS/MS: Part 2, Large-Scale LC/MS/MS and Automation
January 15th 2002by Naidong Weng and Timothy D.J. Halls, Covance Laboratories, Inc. Meeting the challenges of large-scale LC/MS/MS can improve the analytical processes that support biopharmaceutical drug development. The conclusion of this article presents troubleshooting techniques for LC/MS/MS and illustrates an automation strategy.
Liposomes (a Review): Part Two, Drug Delivery Systems
January 15th 2002by Suggy S. Chrai, R. Murari, and Imran Ahmad Good manufacturing processes require that lipid vesicles be reproducibly uniform in size, carry the drug in sufficient concentration, and remain stable for an acceptable shelf-life under varying temperatures. Following these guidelines improves the analytical processes that support biopharmaceutical drug development.
Considerations During Development of a Protein A-Based Antibody Purification Process
January 15th 2001by Harish Iyer, Felicia Henderson, Eric Cunningham, James Welbb, John Hanson, Christopher Bork, and Lynn Conley, IDEC Pharmaceuticals Corporation Scale-up changes in an antibody purification process can increase final product purity, make the process more robust, and reduce processing time. This case study focuses on the initial purification step -- protein A chromatography -- and offers data collected from several years of process development work on many different antibodies.