Pongpiachan, S., Thumanu, K., Kositanont, C., Schwarzer, Klaus, Prietzel, J., Hirunyatrakul, P. and Kittikoon, I. (2012) Parameters Influencing Sulfur Speciation in Environmental Samples Using Sulfur K-Edge X-Ray Absorption Near-Edge Structure. Journal of Analytical Methods in Chemistry . DOI 10.1155/2012/659858.

Full text not available from this repository.

Abstract

This paper aims to enhance the credibility of applying the sulfur K-edge XANES spectroscopy as an innovative "fingerprint" for characterizing environmental samples. The sensitivities of sulfur K-edge XANES spectra of ten sulfur compound standards detected by two different detectors, namely, Lytle detector (LyD) and Germanium detector (GeD), were studied and compared. Further investigation on "self-absorption" effect revealed that the maximum sensitivities of sulfur K-edge XANES spectra were achieved when diluting sulfur compound standards with boron nitride (BN) at the mixing ratio of 0.1%+ The "particle-size" effect on sulfur K-edge XANES spectrum sensitivities was examined by comparing signal-to-noise ratios of total suspended particles (TSP) and particulate matter of less than 10 millionths of a meter (PM10) collected at three major cities of Thailand. The analytical results have demonstrated that the signal-to-noise ratios of sulfur K-edge XANES spectra were positively correlated with sulfate content in aerosols and negatively connected with particle sizes. The combination of hierarchical cluster analysis (HCA) and principal component analysis (PCA) has proved that sulfur K-edge XANES spectrum can be used to characterize German terrestrial soils and Andaman coastal sediments. In addition, this study highlighted the capability of sulfur K-edge XANES spectra as an innovative "fingerprint" to distinguish tsunami backwash deposits (TBD) from typical marine sediments (TMS).

Document Type:	Article
Additional Information:	Natl Inst Dev Adm NIDA, NIDA Ctr Res & Dev Disaster Prevent & Management, Sch Social & Environm Dev, Bangkok 10240, Thailand. Synchrotron Light Res Inst, Publ Org, Nakhon Ratchasima 30000, Thailand. Chulalongkorn Univ, Interdept Environm Sci, Fac Grad Studies, Bangkok 10330, Thailand. Inst Geosci Sedimentol Coastal & Continental Shel, D-24118 Kiel, Germany. Tech Univ Munich, Lehrstuhl Bodenkunde, D-85350 Freising Weihenstephan, Germany. Bara Sci Co Ltd, Bangkok 10500, Thailand. Pongpiachan, S (reprint author), Natl Inst Dev Adm NIDA, NIDA Ctr Res & Dev Disaster Prevent & Management, Sch Social & Environm Dev, 118 Moo 3,Sereethai Rd, Bangkok 10240, Thailand. pongpiajun@gmail.com
Keywords:	xanes spectroscopy wetland soils coastal zone 2004 tsunami sediments thailand sulfate aerosols lake particles
Research affiliation:	Kiel University OceanRep > The Future Ocean - Cluster of Excellence
Refereed:	Yes
Open Access Journal?:	Yes
Publisher:	Hindawi
Projects:	Future Ocean
Date Deposited:	14 May 2014 09:42
Last Modified:	23 Sep 2019 22:43
URI:	https://oceanrep.geomar.de/id/eprint/24213

Actions (login required)

View Item