caa a22 4500 465748317 CHVBK 20180323111826.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00323408 doi (NATIONALLICENCE)springer-10.1007/BF00323408 Flame atomic absorption analysis of gold in jewelry samples [Elektronische Daten] [A. Mauri, E. Huerta, M. de la Guardia] Summary: A new procedure is proposed for the determination of gold by flame atomic absorption in jewelry samples. The method is based on the acid digestion of 10 mg of sample in a microwave oven and on the on-line dilution, using a three-way valve. The dynamic range of the technique is extended to 100 mg/l gold solutions and using a weighted bracketing method for the treatment of the results, accuracy errors lower than 2% can be found in the analysis of real samples as compared with those obtained by fire assay. The method is very fast and implies only little damage to the jewelry samples. Springer-Verlag, 1990 Mauri A. Asociación de Investigación Metal-Mecánica Afines y Conexas C/Ciudad de Barcelona, 38. Poligono Industrial Fuente del Jarro, E-46980, Paterna (Valencia), Spain aut Huerta E. Asociación de Investigación Metal-Mecánica Afines y Conexas C/Ciudad de Barcelona, 38. Poligono Industrial Fuente del Jarro, E-46980, Paterna (Valencia), Spain aut de la Guardia M. Departamento de Química Analítica, Unversidad de Valencia, C/Dr. Moliner 50, E-46100, Burjassot (Valencia), Spain aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/6(1990-01-01), 699-702 0937-0633 338:6<699 1990 338 216 https://doi.org/10.1007/BF00323408 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00323408 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mauri A. Asociación de Investigación Metal-Mecánica Afines y Conexas C/Ciudad de Barcelona, 38. Poligono Industrial Fuente del Jarro, E-46980, Paterna (Valencia), Spain aut NATIONALLICENCE 700 1- Huerta E. Asociación de Investigación Metal-Mecánica Afines y Conexas C/Ciudad de Barcelona, 38. Poligono Industrial Fuente del Jarro, E-46980, Paterna (Valencia), Spain aut NATIONALLICENCE 700 1- de la Guardia M. Departamento de Química Analítica, Unversidad de Valencia, C/Dr. Moliner 50, E-46100, Burjassot (Valencia), Spain aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/6(1990-01-01), 699-702 0937-0633 338:6<699 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer