26/10/2021 03:00 PM
26/10/2021 04:30 PM
see link below
Bundesanstalt für Materialforschung und -prüfung
Since 1871, BAM has been ensuring safety in technology and chemistry to build confidence in innovations and new technologies. Through our work we strengthen Germany as a business location and address social challenges such as the energy transition or climate change.
As part of the lecture series "Science with Impact", BAM has invited thought leaders from the scientific community to discuss BAM's developments in its focus areas and their impact on society. You are cordially invited to attend the virtual lectures.
See also BAM's anniversary website.
Lecture on 26 October 2021
Prof. Gary M. Hieftje
Department of Chemistry, Indiana University
|Date||Tuesday, 26 October 2021, 3:00 pm|
|Type of Event||Webinar|
|Topic||Sources, Spectrometers, and Systems for Elemental, Molecular, and Biomolecular Analysis|
|Presenter||Prof. Gary M. Hieftje|
Department of Chemistry Indiana University
In the 150 years during which BAM and its predecessors have been in existence, the field of spectrochemistry has evolved from a laboratory curiosity to a workhorse employed to measure almost anything in everything. In the area of elemental analysis alone, atomization/excitation sources have evolved from moderate-temperature chemical flames to high-temperature electrical discharges powered by dc, low-frequency, radiofrequency, and microwave supplies. Similarly, primary light sources used for absorption and fluorescence have progressed from those of natural origin (e.g. the sun) to devices powered by supplies ranging from electrical to nuclear. During the same period, spectrometers moved from optical systems operated manually and employing detection by the human eye to sophisticated simultaneous multichannel arrangements operated under computer control and guided by artificial intelligence. It is therefore natural to question whether this trend can continue. Is spectrochemistry approaching a plateau? Can new, ever better sources and spectrometers be conceived and developed? Even more important, can newly developed instruments address all problems likely to be critical in coming years?
In this presentation, these questions will be placed in the context of past and recent developments in instrumentation and methods for elemental, molecular, and biomolecular analysis. It will be argued that progress in instrumentation science and, indeed, science in general is evolutionary rather than revolutionary; true breakthroughs are impossible to presage. As a result, near-future advances can be gauged in part by reviewing recent, promising innovations. Several of these innovations will be described and critiqued, with emphasis being placed on multidimensional, information-rich sources, spectrometers, and detectors
|Link-Registration||Webex - Prof. Dr. Gary M. Hieftje|