April Monthly Meeting

Spectroscopy Society of Pittsburgh Monthly Meeting

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WHEN: Wednesday – April 27
RSVP BY: Wednesday – April 20 – by NOON

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Dinner reservations are no longer
being accepted.

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Technology Forum Speaker’s Presentation & Social Hour: 5:30 PM – Power Center Ballroom Section C
Social Hour: 5:30 PM – Power Center Fides Shepperson Suite
Dinner: 6:30 PM – Power Center Ballroom Section C
Business Meeting: 8:00 PM – Power Center Ballroom Section C
Technical Program Speaker’s Presentation: 8:15 PM – Power Center Ballroom Section C

TECHNOLOGY FORUM – 5:30 PM
Geoffrey H. Goldberg, SAI Consulting Engineers

“Pittsburgh’s Bridge Legacy”
The city of Pittsburgh has a unique place in the history of bridge technology. It’s demanding topography creating a need for a massive number of stream crossings of all sizes, and its position as the major producer of steel, the fabric of choice for bridge construction, converged to produce the transportation network that is greater Pittsburgh.

We will survey the contributions made by great Pittsburghers: Andrew Carnegie, John Roebling, Gustav Lindenthal and George Richardson; and explore why the city looks like it does. …Read Bio


TECHNOLOGY PROGRAM – 8:15 PM
Gary Hieftje, Indiana University

“The Glow on the Horizon: New Sources for Emission and Mass Spectrometry”
Although conventional glow discharges, operated at modest (~60W) power levels and vacuum (~1 torr) settings, have long been used for bulk and depth-resolved analysis of solid samples, many scientists have recently
turned to atmospheric-pressure glows, which differ in physical properties from reduced-pressure discharges and which open new avenues in spectroscopic analysis. In this presentation, one of the newer atmosphericpressure glows will be described and evaluated. Termed the Solution-Cathode Glow Discharge (SCGD), the source provides solution-based detection limits that rival or improve upon those available from ICP emission spectrometry; yet the SCGD requires no gas (argon or other) flow, needs no nebulizer or spray chamber, provides surprisingly uncluttered spectra, and operates at power levels typical of those for a conventional glow discharge (~65W). Further, the SCGD can be coupled effectively with the same sort of mass spectrometers that are ordinarily used with inductively coupled plasma. However unlike the ICP, the SCGD can provide elemental, speciation, and even metallomic information, just by altering the power supplied to the discharge. Finally, an additional alternative to the argon ICP will be described. It offers detection capability like the ICP, but operates on either nitrogen or air, and is powered by a low-cost magnetron similar to those found in home microwave ovens. …Read Bio