BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE
Stripping analysis was proposed for the voltammetric determination of trace cadmium and lead in local rice wine alcoholic beverages. A bismuth-antimony film electrode (Bi-SbFE) was employed for accumulative preconcentration of trace metals by adding 4 mg L−1 of bismuth and 1 mg L−1 of antimony direc...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2023-08-01
|
| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422023000700718&lng=en&tlng=en |
| _version_ | 1797733672427716608 |
|---|---|
| author | Watsaka Siriangkhawut Kraingkrai Ponhong Piyanete Chantiratikul Parita Mayotha |
| author_facet | Watsaka Siriangkhawut Kraingkrai Ponhong Piyanete Chantiratikul Parita Mayotha |
| author_sort | Watsaka Siriangkhawut |
| collection | DOAJ |
| description | Stripping analysis was proposed for the voltammetric determination of trace cadmium and lead in local rice wine alcoholic beverages. A bismuth-antimony film electrode (Bi-SbFE) was employed for accumulative preconcentration of trace metals by adding 4 mg L−1 of bismuth and 1 mg L−1 of antimony directly to the sample solution and simultaneously depositing bismuth, antimony, and trace cadmium and lead target metals on the glassy carbon electrode by applying a fixed potential of –1.1 V versus the Ag/AgCl reference electrode for 300 s. Pre-treatment parameters for mineralization of the sample were optimized using the wet acid digestion procedure. Under the optimum conditions, linear calibration graphs ranging 20-200 μg L−1 for Cd and Pb were obtained with detection limits of 0.22 and 0.62 μg L−1 and limits of quantitation 0.73 and 2.07 μg L−1, respectively. Reproducibility values for seven replicate analyses of 50 μg L−1 Cd and Pb were 3.6 and 3.3%, respectively. The developed method was successful for Cd and Pb analyses in Thai rice wine samples and results were validated by the flame atomic absorption spectrometric method. Most samples were not contaminated with Cd and Pb. The amount of Cd contaminants in only one of rice wine sample was still lower than the maximum permitted level of Cd in wine. |
| first_indexed | 2024-03-12T12:31:18Z |
| format | Article |
| id | doaj.art-161d0fa296664400aa5aa127d21e1a5a |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-03-12T12:31:18Z |
| publishDate | 2023-08-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-161d0fa296664400aa5aa127d21e1a5a2023-08-29T07:46:11ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642023-08-0146771872310.21577/0100-4042.20230043BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINEWatsaka Siriangkhawuthttps://orcid.org/0000-0002-2409-7965Kraingkrai PonhongPiyanete ChantiratikulParita MayothaStripping analysis was proposed for the voltammetric determination of trace cadmium and lead in local rice wine alcoholic beverages. A bismuth-antimony film electrode (Bi-SbFE) was employed for accumulative preconcentration of trace metals by adding 4 mg L−1 of bismuth and 1 mg L−1 of antimony directly to the sample solution and simultaneously depositing bismuth, antimony, and trace cadmium and lead target metals on the glassy carbon electrode by applying a fixed potential of –1.1 V versus the Ag/AgCl reference electrode for 300 s. Pre-treatment parameters for mineralization of the sample were optimized using the wet acid digestion procedure. Under the optimum conditions, linear calibration graphs ranging 20-200 μg L−1 for Cd and Pb were obtained with detection limits of 0.22 and 0.62 μg L−1 and limits of quantitation 0.73 and 2.07 μg L−1, respectively. Reproducibility values for seven replicate analyses of 50 μg L−1 Cd and Pb were 3.6 and 3.3%, respectively. The developed method was successful for Cd and Pb analyses in Thai rice wine samples and results were validated by the flame atomic absorption spectrometric method. Most samples were not contaminated with Cd and Pb. The amount of Cd contaminants in only one of rice wine sample was still lower than the maximum permitted level of Cd in wine.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422023000700718&lng=en&tlng=enstripping voltammetrybismuth-antimony film electrodecadmiumleadrice wine |
| spellingShingle | Watsaka Siriangkhawut Kraingkrai Ponhong Piyanete Chantiratikul Parita Mayotha BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE Química Nova stripping voltammetry bismuth-antimony film electrode cadmium lead rice wine |
| title | BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE |
| title_full | BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE |
| title_fullStr | BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE |
| title_full_unstemmed | BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE |
| title_short | BISMUTH-ANTIMONY FILM ELECTRODE FOR STRIPPING VOLTAMMETRIC DETERMINATION OF TRACE CADMIUM AND LEAD IN THAI RICE WINE |
| title_sort | bismuth antimony film electrode for stripping voltammetric determination of trace cadmium and lead in thai rice wine |
| topic | stripping voltammetry bismuth-antimony film electrode cadmium lead rice wine |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422023000700718&lng=en&tlng=en |
| work_keys_str_mv | AT watsakasiriangkhawut bismuthantimonyfilmelectrodeforstrippingvoltammetricdeterminationoftracecadmiumandleadinthairicewine AT kraingkraiponhong bismuthantimonyfilmelectrodeforstrippingvoltammetricdeterminationoftracecadmiumandleadinthairicewine AT piyanetechantiratikul bismuthantimonyfilmelectrodeforstrippingvoltammetricdeterminationoftracecadmiumandleadinthairicewine AT paritamayotha bismuthantimonyfilmelectrodeforstrippingvoltammetricdeterminationoftracecadmiumandleadinthairicewine |