Article

In 1964, University of Utah chemistry professor J. Calvin Giddings enunciated a theoretical platform, “unified separation science,” that could confer the resolving power of GC to LC. Giddings’ model combined the higher mobile phase diffusion and efficiency of GC with LC’s higher selectivity via orthogonal separation modes. His vision has been made a reality through supercritical fluid chromatography (SFC), which uses supercritical or subcritical carbon dioxide as the mobile phase.

“Fun new tools,” particularly in mass detection, have encouraged a new conversation among separation scientists, says Nicholas Hall, national sales director at LECO (St. Joseph, MI). “Every time this occurs, the instrument vendors engage in the equivalent of an arms race, where the battles are fought over specifications— more resolution, greater fragmentation capability.” But the real discussion has recently involved the very nature of chromatography, Hall says. “Just as important as the tool used for detection on the back end is the time and optimization that goes on at the front end.” Thus the resurgence of basic chromatography optimization, the application of solid analytical chemistry, and a focus on chromatography as the optimization of mass spectrometers. “If you have good separation and good sample preparation, and that goes into the MS, then you’re really optimizing the mass spectrometer’s capabilities.”

Problem: ELISA assays are a workhorse assay used in pharmaceutical research and molecular diagnostic labs. This assay can be a high-volume service area for contract labs. However, many IVD labs and CROs have difficulty in costeffectively scaling their ELISA workflow to meet customer demand. This simple assay becomes deceptively complex: time sensitive steps and subtle workflow changes between different tests can be challenging to process as throughput increases. Reagent costs can cut further into tight operating margins. At some point manual processing becomes too challenging from an IVD compliance and operational perspective. Automating the laboratory’s workflow is the answer—but it can seem difficult to implement and expensive.

Large organizations involved in research and production typically handle large volumes of chemical inventory that require different types of storage and tracking. When a laboratory environment is part of the mix, managing the chemical inventory used by the lab presents a challenge to lab managers and environment, health, and safety (EHS) professionals, who must submit regulatory reports that accurately reflect the status of chemicals on-site. Ensuring that the chemical inventory data is accurate is challenging; providing that information in regulatory reports can be a time-consuming and frustrating task if it is not automated.















