| dc.contributor | | en-US |
| dc.creator | Bravo, Manuel A. | |
| dc.creator | Riquelme, Ornella | |
| dc.creator | Parra, Sonnia | |
| dc.creator | Bergmann, Jan | |
| dc.creator | Quiroz, Waldo | |
| dc.date | 2019-01-09 | |
| dc.date.accessioned | 2019-04-16T16:42:42Z | |
| dc.date.available | 2019-04-16T16:42:42Z | |
| dc.identifier | https://www.jcchems.com/index.php/JCCHEMS/article/view/924 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/42312 | |
| dc.description | In the present work, the applicability of a monolithic column was evaluated for mercury speciation analysis in certified and real fish samples. The influence of the flow and composition of the mobile phase (2-mercaptoethanol concentration and methanol content) on the retention times of iHg and MeHg was evaluated. The optimal separation conditions were achieved for a mobile phase containing 5 % methanol and 0.02 % mercaptoethanol in acetate buffer (pH 5.0) at a flow rate of 1.6 ml min-1. Different extraction conditions were studied to analyze a certified reference material with the optimized methodology and the best results (93 % recovery) were obtained for microwave-assisted extraction with a mixture of HCl 6 M + NaCl 0.5 M. Finally, the proposed method was satisfactorily applied to real fish samples collected from different markets in the central region of Chile, presenting levels ranging from 0.73 – 3.4 mg kg-1. | en-US |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Sociedad Chilena de Química | en-US |
| dc.relation | https://www.jcchems.com/index.php/JCCHEMS/article/view/924/285 | |
| dc.rights | Copyright (c) 2019 Journal of the Chilean Chemical Society | en-US |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0 | en-US |
| dc.source | Journal of the Chilean Chemical Society; Vol 63, No 4 (2018): Journal of the Chilean Chemical Society | en-US |
| dc.source | 0717-9707 | |
| dc.subject | Mercury speciation; Monolithic column; Fish samples | en-US |
| dc.title | EVALUATION OF MONOLITHIC COLUMN FOR INORGANIC MERCURY AND METHYLMERCURY DETERMINATION IN FISH SAMPLE ANALYSIS | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | | en-US |
