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Investigation of a high-pressure pressed powder pellet technique for the analysis of coal by wavelength dispersive X-ray fluorescence spectroscopy. Appl Radiat Isot 2018; 132:170-177. [DOI: 10.1016/j.apradiso.2017.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 08/23/2017] [Accepted: 11/03/2017] [Indexed: 11/22/2022]
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Bell CL, van Helden JPH, Blaikie TPJ, Hancock G, van Leeuwen NJ, Peverall R, Ritchie GAD. Noise-Immune Cavity-Enhanced Optical Heterodyne Detection of HO2 in the Near-Infrared Range. J Phys Chem A 2012; 116:5090-9. [DOI: 10.1021/jp301038r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Claire L Bell
- Physical & Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, UK
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Simeonsson JB, Matta A, Boddeti R. Direct Measurement of SO2in Air by Laser Induced Fluorescence Spectrometry Using a Nontunable Laser Source. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.655681] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abstract
Abstract
We highlight the capabilities and potential of diode laser induced fluorescence for measurements in gas-phase reacting flows. Many applications of diode lasers in practical sensing are based on absorption spectroscopy. Fluorescence-based diagnostics possess similar advantages in terms of practicality and implementation-cost but additionally are capable of achieving excellent spatial resolution. Diode laser fluorescence instruments have been employed for high-sensitivity trace gas monitoring in applications ranging from plasma physics to atmospheric chemistry. This article begins by describing the UV-visible diode laser technology used to perform fluorescence. The principles of diode laser induced fluorescence are then reviewed and a comparison is made with absorption spectroscopy. Examples are given of concentration measurements of both atomic and molecular trace gases. Recent work on using diode laser induced atomic fluorescence for precision measurements of flame temperature is also reviewed. We conclude by a discussion of future opportunities for diode laser fluorescence spectroscopy drawing attention to interesting potential target species as well as novel application areas, such as monitoring of synthesis processes for nanomaterials.
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Affiliation(s)
| | - Clemens F. Kaminski
- University of Cambridge, Department of Chemical Engineering, Cambridge, Großbritannien
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