| dc.creator | LUZ OLIVIA LEAL QUEZADA | |
| dc.date | 2016 | |
| dc.date.accessioned | 2023-07-21T15:29:16Z | |
| dc.date.available | 2023-07-21T15:29:16Z | |
| dc.identifier | http://cimav.repositorioinstitucional.mx/jspui/handle/1004/550 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7726557 | |
| dc.description | A new automatic kinetic catalytic method has been developed for the measurement of Mn2+ in drinking and seawater samples. The method is based on the catalytic effect of Mn2+ on the oxidation of tiron by hydrogen peroxide in presence of Pb2+ as an activator. The optimum conditions were obtained at pH 10 with 0.019 mol L−1 2'2 bipyridyl, 0.005 mol L−1 tiron and 0.38 mol L−1 hydrogen peroxide. Flow system is based on multisyringe flow injection analysis (MSFIA) coupled with a lab-on-valve (LOV) device exploiting on line spectrophotometric detection by a Liquid Waveguide Capillary Cell (LWCC), 1 m optical length and performed at 445 nm. Under the optimized conditions by a multivariate approach, the method allowed the measurement of Mn2+ in a range of 0.03–35 µg L−1 with a detection limit of 0.010 µg L−1, attaining a repeatability of 1.4% RSD. The method was satisfactorily applied to the determination of Mn2+ in environmental water samples. The reliability of method was also verified by determining the manganese content of the certified standard reference seawater sample, CASS-4. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.relation | info:eu-repo/semantics/datasetDOI/https://doi.org/10.1016/j.talanta.2015.10.050 | |
| dc.relation | citation:Chaparro, L., Ferrer, L., Leal, L. O., & Cerdà, V. (2016). Automatic flow analysis method to determine traces of Mn 2+ in sea and drinking waters by a kinetic catalytic process using LWCC-spectrophotometric detection. Talanta, 148, 583-588. | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/Autor/Mn2+ determinationSea waterKinetic-catalytic methodTironMSFIA-LOV system | |
| dc.subject | info:eu-repo/classification/cti/2 | |
| dc.subject | info:eu-repo/classification/cti/2 | |
| dc.title | Automatic flow analysis method to determine traces of Mn2+ in sea and drinking waters by a kinetic catalytic process using LWCC-spectrophotometric detection | |
| dc.type | info:eu-repo/semantics/article | |
