Spectroscopy-07-01-2014
Current and Emerging Laser Sensors for Greenhouse Gas Detection and Monitoring
July 1st 2014In the study of global warming, obtaining good data demands widely deployed, accurate, and reliable sensors for identifying and understanding the origins, sources, and fates of greenhouse gases. Sensing technologies based on tunable diode laser absorption spectroscopy are starting to provide some of this critical data.
Laser-Induced Breakdown Spectroscopy: A Closer Look at the Capabilities of LIBS
July 1st 2014Dr. Richard R. Hark, a professor in the Department of Chemistry at Juniata College in Huntingdon, Pennsylvania, discusses his work with LIBS in applications such as forensic science, conflict minerals, and geochemical fingerprinting.
Rapid Determination of Trace Metals in Oil Using Handheld X-Ray Fluorescence Spectroscopy
July 1st 2014Determination of trace metals in oil and petroleum typically is based on ICP-OES methods, requiring signficant sample preparation and expensive instrumentation. This article presents an alternative method, based on the use of a handheld energy-dispersive X-ray fluorescence analyzer, that involves minimal sample preparation, uses authentic standards for calibration, gives low parts-per-million detection limits, and provides significant time and cost savings.
