Siesler, Heinz W.

English

JKI Open Journal Systems (Julius Kühn-Institut)

2nd International Plant Spectroscopy Conference (IPSC) 2019, Berlin, 24 - 28 March 21    Session 1 - NIR Spectroscopy / Imaging (Co-chairs: Huck/Siesler) 01-01: Hand-held vibrational spectrometers: State-of-the art instrumentation and novel applications Heinz W. Siesler University of Duisburg-Essen, Essen, Germany E-mail: hw.siesler@uni-due.de   Miniaturization of vibrational spectrometers has started more than two decades ago, but only within the last decade real hand-held Raman, mid-infrared (MIR) and near-infrared (NIR) scanning spectrometers have become commercially available and have been utilized for a broad range of analytical applications [1-7]. In actual fact, marketing companies predict this segment of instrumentation a significant growth rate within the next few years. This increase will be primarily based on a wider adoption of spectrometers for quality control by in-the-field testing and on-site measurements and by expansion to a new user community. In view of the higher price level of miniaturized Raman and MIR instruments (>10 K US$) compared to NIR systems (∼1 K US$) only the last mentioned spectrometers can be taken into consideration for private use in the near future, whereas hand-held Raman and MIR spectrometers will be restricted to industrial, military and homeland security applications and public use by first responders, customs or scientific institutions. Thus, based on high-volume manufacturability and further reduction of costs, numerous companies target with NIR instruments a non-expert user community for consumer applications. Especially from this last-mentioned development a tremendous potential for everyday life can be expected ranging from food testing to detection of fraud and adulteration in a broad area of materials.  The presentation will shortly describe instrumental features of novel hand-held Raman, MIR and NIR spectrometers and discuss selected qualitative and quantitative case studies. References  [1] SORAK, D., HERBERHOLZ, L., IWASCEK, S., ALTINPINAR, S., PFEIFER, F., and H.W. SIESLER, 2012: Appl. Spectrosc. Revs., 47, 83-115. [2] O’BRIEN, N., HULSE, C., PFEIFER, F. and H. W. SIESLER, 2013: J. Near Infrared Spectrosc., 21, 299-305. [3] CROCOMBE, R. A. and M. A. DRUY, 2016: Appl. Spectrosc., 70, 730-733. [4] YAN, H. and H. W. SIESLER, 2018: J. Pharm. Biomed. Anal., 160, 179-186. [5] YAN, H. and H. W. SIESLER, 2018: J. Near Infrared Spectrosc., 26, 311-321. [6] YAN, H. and H. W. SIESLER, 2018: Spectroscopy, 33, 6-16. [7] YAN, H. and H. W. SIESLER, 2018: NIR News, 29, 8–12.   

Hand-held vibrational spectrometers: State-of-the art instrumentation and novel applications

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Hand-held vibrational spectrometers: State-of-the art instrumentation and novel applications

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