Beginn

26.10.2021 15:00 Uhr

Ende

26.10.2021 16:30 Uhr

Veranstaltungsort

Online Event

Link siehe unten

Veranstalter

Bundesanstalt für Materialforschung und -prüfung

Grafik zur Veranstaltungsreihe Wissenschaft mit Wirkung

Quelle: BAM

Seit 1871 gewährleistet die BAM Sicherheit in Technik und Chemie und schafft so Vertrauen in Innovationen und Zukunftstechnologien. Mit unserer Arbeit tragen wir dazu bei, den Wirtschaftsstandort Deutschland zu stärken und auf gesellschaftliche Herausforderungen wie die Energiewende oder den Klimawandel zu antworten.

Im Rahmen der Vortragsreihe „Wissenschaft mit Wirkung“ hat die BAM führende Köpfe aus der Wissenschaft eingeladen, um die Entwicklungen der BAM in den Themenfeldern und die Wirkung von Wissenschaft für die Gesellschaft gemeinsam zu beleuchten. Sie sind herzlich zur Teilnahme an den virtuellen Vorträgen eingeladen.

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Vortrag am 26.10.2021

Prof. Gary M. Hieftje
Department of Chemistry, Indiana University

DateTuesday, 26 October 2021, 3:00 pm
Type of EventWebinar
TopicSources, Spectrometers, and Systems for Elemental, Molecular, and Biomolecular Analysis
PresenterProf. Gary M. Hieftje
Department of Chemistry Indiana University
Summary

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