@misc{10498/25885,
year = {2022},
month = {2},
url = {http://hdl.handle.net/10498/25885},
abstract = {Suspended biomass bioreactors can be operated to remove H2S from biogas under anoxic conditions and produce elemental sulfur, the commercial value of which has been demonstrated. In the present paper, a novel methodology comprising the optimization of a determination method performed in a gas chromatograph equipped with a pulsed flame photometric detector (GC-PFPD), combined with a simple preparation based on filtration and extraction with toluene, is proposed. The injector temperature and carrier gas flow rate (QHe) values were optimized using a response surface methodology based on a face-centred composite central design. This optimization revealed that the optimum conditions were an injector temperature and carrier gas flow rate of 222°C and 7mLmin-1, respectively. The chromatographic method shows an analysis time of 48min, a detection limit of more than 5.9mgL-1, a relative standard deviation of less than 3.71%, and a sulfur recovery percentage of more than 98%. These values provide excellent linearity and a reasonable concentration range (10-200mgL-1). Finally, a measurement error of 4.45% was obtained when using the present method in a selectivity test.
Copyright © 2021 The Authors. Published by Elsevier B.V. All rights reserved.},
organization = {This work has been co-financed by the 2014–2020 ERDF Operational
Programme and by the Department of Economy, Knowledge, Business
and University of the Regional Government of Andalusia. Project
reference: FEDER-UCA18-106138.},
publisher = {ELSEVIER},
keywords = {Biogenic sulfur},
keywords = {GC-PFPD},
keywords = {Toluene},
keywords = {Filtration},
keywords = {Response surface methodology (RSM)},
title = {Development and validation of a sampling and analysis method to determine biogenic sulfur in a desulfurization bioreactor by gas chromatography coupled with a pulsed flame photometric detector (GC-PFPD).},
doi = {10.1016/j.jhazmat.2021.127667},
author = {Torres Herrera, Sandra and González Cortés, José Joaquín and Almengló Cordero, Fernando and Ramírez Muñoz, Martín and Cantero Moreno, Domingo},
}