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March 01, 2008
My personal experience of lab automation is limited to supervising a peptide synthesiser back in the late 1980s. The machine was eye-wateringly expensive - but it was soon paying its way in terms of productivity and research publications. So if I were a stake-holder in a company pondering whether to invest in a well-designed gadget that could automate a routine operation, I'd say: 'go for it'.
February 02, 2008
USP 467 Residual Solvents will take effect on July 1, 2008. But does the industry understand these specifications-and is it prepared?
January 01, 2008
Historically, the main purpose of laboratory information management systems (LIMS) has been to track and manage samples in the laboratory. LIMS originated nearly 30 years ago as a rudimentary method of automating manual, error-prone processes in the laboratory and, with the growth in adoption of technology, became the de facto benchmark for laboratory control and management.
November 01, 2007
Maintenance and service-related items are often the second-largest budget element in a laboratory after salaries and benefits. Within maintenance, preventive maintenance (PM) is a substantial portion of the budget. Traditionally, PM was an equipment maintenance philosophy based on replacing, overhauling or remanufacturing a piece of equipment at fixed intervals, regardless of its condition at the time. In essence, it involved fixing something that wasn't necessarily broken and this approach is still widely used in the pharmaceutical industry.
October 01, 2007
High-performance liquid chromatography (HPLC) is a powerful tool for the enantioselective separation of chiral drugs. However, the selection of an appropriate chiral stationary phase (CSP) and suitable operating conditions is a bottleneck in method development and a time- and resource-consuming task. Multimodal screening of a small number of CSPs with broad enantiorecognition abilities has been recognized as the best strategy to achieve rapid and reliable separations of chiral compounds. This paper describes the generic screening strategy developed at Johnson & Johnson Pharmaceutical Research and Development to successfully develop enantioselective HPLC methods for chiral molecules of pharmaceutical interest.
The authors review methods for reducing analysis time and increasing throughput that are reliable and maintain data integrity.
Polysaccharide-based chiral stationary phases have been developed that comprise chiral selectors immobilized on their support rather than being physically coated. These materials are completely solvent stable, thereby increasing selectivity and and enabling the development of new chiral selectors that have been too unstable in a coated form for general use.
Ultrahigh pressure liquid chromatography maximizes efficiency, but, as defined by the resolution equation, the stationary phase is still a crucial consideration when attempting to resolve mixtures of compounds.
September 01, 2007
A new Raman spectroscopic method to detect magnesium stearate in powder blends and tablets is described. High-volume pharmaceutical manufacturing requires the use of lubricants to facilitate tablet ejection from compressing machines. However, lubricants may also bring a number of undesired problems that have been widely documented in pharmaceutical scientific literature. New analytical methods are needed to understand lubrication and provide process knowledge in support of FDA's process analytical technology initiative. The detection of magnesium stearate in lactose, mannitol, corn starch and other commercially important excipients is reported. The Raman spectroscopic method has a detection limit of about 0.1% (w/w) based on the 2848 cm-1 band that corresponds to the symmetric stretch of the methylene group in magnesium stearate.
February 01, 2007
Raman spectroscopy has become a commonly used technique for physicochemical analysis that possesses many advantages over other analytical techniques. It is a very attractive characterization tool, not least because it enables measurements in water. However, very few examples of its application in an aqueous environment exist in literature. This paper provides some recent applications of Raman spectroscopy in pharmaceutical material and process characterization when water is present.