Presentation Profile

*KEYNOTE SPEAKER* Compact Analytical Instrumentation in the Petroleum and Petrochemical Industries: Portable Liquid Chromatography as an Emerging Technology

Currently Scheduled: 10/11/2022 - 10:00 AM - 11:00 AM
Room: Exhibit Hall A4

Main Author
Dr. Milton Lee - Axcend, Provo, UT, and Brigham Young University, Provo, UT

Abstract Number: 98
Abstract:

A major trend in the analytical chemistry field today is to significantly reduce the size of analytical instrument components and products. Reduction in size generally allows greater mobility, simpler operation, lower cost, and greater productivity. These characteristics are especially important in the petroleum and petrochemical industries because of the broad-ranging needs for timely chemical measurements in some of the most diverse locations. Taking the instrument to the sample instead of the sample to an instrument that is permanently located in a laboratory makes much more sense in these industries compared to many others. Liquid chromatography (LC) has been slow to embrace compactness and portability compared to spectrophotometry and gas chromatography (GC), for example. Today, new developments in materials and hardware components have accelerated efforts to develop compact LC. In the last few years, truly portable gradient LC has become commercially available, offering small high-pressure pumping systems that can deliver microliter to nanoliter/min mobile phase flow rates, fittings and transfer lines that minimize dead volumes to preserve chromatographic performance, and multiple detector options including single wavelength on-column UV-absorption detection with LED light sources, multi-wavelength diode array detection (DAD), fluorescence detection and, of course, mass spectrometry (MS). Small diameter (< 0.3 mm i.d.) packed capillary columns can be pre-mounted in temperature-controlled, easy-to-connect cartridges that literally take less than a few minutes to install/exchange. Examples of applications that are particularly well suited for compact LC in the petroleum and petrochemical industries include point detection of hazardous chemicals in emissions and effluents, chemical process monitoring and optimization, purity assessment of reclaimed process water, determination of final compositions of petroleum products, measurement of additive levels in petroleum-derived fuels, and detection of fuel marker compounds. The extremely low mobile phase flow rates characteristic of portable/compact capillary LC minimize the cost and bother of purchasing and disposing of mobile phase solvents, and clearly position the technique in the elite class of “green analytical chemistry.”

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