Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS
In this work, an analytical methodology for the determination of traces of cobalt in natural waters by formation of a neutral chelate with ammonium pyrrolidinedithiocarbamate(APDC) was developed. The neutral chelate formed was retained in a column packed with natural zeolites, and then eluted with...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad del Zulia
2016-07-01
|
| Series: | Revista Técnica de la Facultad de Ingeniería |
| Subjects: | |
| Online Access: | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/21203 |
| _version_ | 1811188688115204096 |
|---|---|
| author | Yaneira Petit de Peña Wendy Rondón |
| author_facet | Yaneira Petit de Peña Wendy Rondón |
| author_sort | Yaneira Petit de Peña |
| collection | DOAJ |
| description |
In this work, an analytical methodology for the determination of traces of cobalt in natural waters by formation of a neutral chelate with ammonium pyrrolidinedithiocarbamate(APDC) was developed. The neutral chelate formed was retained in a column packed with natural zeolites, and then eluted with MIBK to flame atomic absorption spectrometry (EAA) for its detection. The materials were characterized by Fourier Transform infrared spectroscopy and attenuated total reflectance (FTIR and ATR), scanning electron microscopy and energy dispersive X-ray microanalysis (MEB-EDX) and X-ray power diffraction (XRD), indicating that zeolites belong to the family of tectosilicatesClinoptilolite type. Then, use a FIA configuration, with a column preconcentration system coupled to the detection system. The detection limit (3 µ) and the relative standard deviation (% RSD), for 10 determinations of a solution of 30 µg L”“1 Co2+ and 2.3-4.5%, respectively. The sampling frequency of 27 h-1 and preconcentration factors from 130-160 were achieved, for a sample volume of 6 mL, indicating a high retention of the analyte on the zeolites material.
|
| first_indexed | 2024-04-11T14:23:39Z |
| format | Article |
| id | doaj.art-bec8bca659e44f53969bbb5ed387500a |
| institution | Directory Open Access Journal |
| issn | 0254-0770 2477-9377 |
| language | English |
| last_indexed | 2024-04-11T14:23:39Z |
| publishDate | 2016-07-01 |
| publisher | Universidad del Zulia |
| record_format | Article |
| series | Revista Técnica de la Facultad de Ingeniería |
| spelling | doaj.art-bec8bca659e44f53969bbb5ed387500a2022-12-22T04:18:59ZengUniversidad del ZuliaRevista Técnica de la Facultad de Ingeniería0254-07702477-93772016-07-01373Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAASYaneira Petit de Peña0Wendy Rondón1Universidad de Los Andes - VenezuelaInstituto Venezolano de Investigaciones Científicas, IVIC -Venezuela In this work, an analytical methodology for the determination of traces of cobalt in natural waters by formation of a neutral chelate with ammonium pyrrolidinedithiocarbamate(APDC) was developed. The neutral chelate formed was retained in a column packed with natural zeolites, and then eluted with MIBK to flame atomic absorption spectrometry (EAA) for its detection. The materials were characterized by Fourier Transform infrared spectroscopy and attenuated total reflectance (FTIR and ATR), scanning electron microscopy and energy dispersive X-ray microanalysis (MEB-EDX) and X-ray power diffraction (XRD), indicating that zeolites belong to the family of tectosilicatesClinoptilolite type. Then, use a FIA configuration, with a column preconcentration system coupled to the detection system. The detection limit (3 µ) and the relative standard deviation (% RSD), for 10 determinations of a solution of 30 µg L”“1 Co2+ and 2.3-4.5%, respectively. The sampling frequency of 27 h-1 and preconcentration factors from 130-160 were achieved, for a sample volume of 6 mL, indicating a high retention of the analyte on the zeolites material. https://www.produccioncientificaluz.org/index.php/tecnica/article/view/21203cobaltflow injectionpreconcentrationzeolitesatomic absorption |
| spellingShingle | Yaneira Petit de Peña Wendy Rondón Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS Revista Técnica de la Facultad de Ingeniería cobalt flow injection preconcentration zeolites atomic absorption |
| title | Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS |
| title_full | Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS |
| title_fullStr | Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS |
| title_full_unstemmed | Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS |
| title_short | Mini-columns packed with natural zeolites of Cuba for determination of cobalt using the ligand APDC in a flow injection system coupled to a FAAS |
| title_sort | mini columns packed with natural zeolites of cuba for determination of cobalt using the ligand apdc in a flow injection system coupled to a faas |
| topic | cobalt flow injection preconcentration zeolites atomic absorption |
| url | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/21203 |
| work_keys_str_mv | AT yaneirapetitdepena minicolumnspackedwithnaturalzeolitesofcubafordeterminationofcobaltusingtheligandapdcinaflowinjectionsystemcoupledtoafaas AT wendyrondon minicolumnspackedwithnaturalzeolitesofcubafordeterminationofcobaltusingtheligandapdcinaflowinjectionsystemcoupledtoafaas |