At SciX, Kevin Wilkinson of the Universite de Montreal explains how faster data acquisition and new software have cut analysis time and how a particle’s chemical composition can link arsenic-bearing emissions back to a copper refinery’s processes.
|Articles|October 1, 2014
- Spectroscopy E-Books-10-01-2014
- Volume e2
- Issue 2
Ion Chromatography Analysis of Bromate in Natural Water Samples Using Ammonia as a Preservative
Author(s)Chris Pohl
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Ethylenediamine, the preservative specified in EPA Method 300.1, can introduce a chromatographic artifact when analyzing samples containing elevated carbonate concentrations as a result of the formation of ethylenediamine carbamate. This artifact can compromise the ability to measure low levels of bromate in drinking water. The use of ammonia as an alternative preservative was investigated and found to produce improved bromate chromatography under challenging conditions. The improvement was seen on two different stationary phases, demonstrating that the benefit of this alternative preservative is independent of the column chemistry.
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Microspectroscopy, the marriage of spectroscopic chemical identification with microscopic spatial resolution, has advanced from Perkin-Elmer's first commercial infrared microspectrometer in 1953 to today's nanoscale AFM-IR probes, synchrotron-brightness infrared beamlines, and compact hyperspectral tissue imaging devices being developed for AI-assisted cancer detection.
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The New York / New Jersey Section of the Society for Applied Spectroscopy will present its 2026 Gold Medal Award to Richard Crocombe at the Eastern Analytical Symposium on November 17, recognizing two decades of work that helped carry spectroscopy out of the laboratory and into the field.
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