Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity
A rapid, simple, and accurate voltammetric method for quantifying total inorganic arsenic in rice was described in this work. The simplified sample pretreatment involved the addition of a mixed solution of nitric acid and L-cysteine, which facilitated the simultaneous extraction and speciation of ar...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-12-01
|
| Series: | Food Chemistry: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590157524008915 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850062869783117824 |
|---|---|
| author | Wei Tian Jiawei Guo Songxue Wang Minghui Zhou Yingjie He Xingjun Xi Xi Chen Yue Wang Yanxiang Wu Jieqiong Zhang |
| author_facet | Wei Tian Jiawei Guo Songxue Wang Minghui Zhou Yingjie He Xingjun Xi Xi Chen Yue Wang Yanxiang Wu Jieqiong Zhang |
| author_sort | Wei Tian |
| collection | DOAJ |
| description | A rapid, simple, and accurate voltammetric method for quantifying total inorganic arsenic in rice was described in this work. The simplified sample pretreatment involved the addition of a mixed solution of nitric acid and L-cysteine, which facilitated the simultaneous extraction and speciation of arsenic (As(III)). To eliminate interference from complex rice matrices, magnetic composites were employed to absorb copper and other potential interference. Furthermore, As(III) was detected using linear stripping voltammetry with screen-printed electrodes modified in-situ with gold nanoparticles and L-cysteine, enhancing both sensitivity and selectivity. With this strategy, the methodology demonstrated good resistance to interference and high sensitivity, with a detection limit of 0.018 mg/kg. A comparative analysis between this method and liquid chromatography coupled with inductively coupled plasma mass spectrometry (ICP-MS) showed a good correlation with an R2 of 0.995. Additionally, the method was successfully applied to determine total inorganic arsenic in commercial rice samples, yielding satisfactory results. |
| format | Article |
| id | doaj-art-6d21bdf84e61493481314f2c1fe08c4a |
| institution | DOAJ |
| issn | 2590-1575 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Food Chemistry: X |
| spelling | doaj-art-6d21bdf84e61493481314f2c1fe08c4a2025-08-20T02:49:49ZengElsevierFood Chemistry: X2590-15752024-12-012410200310.1016/j.fochx.2024.102003Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivityWei Tian0Jiawei Guo1Songxue Wang2Minghui Zhou3Yingjie He4Xingjun Xi5Xi Chen6Yue Wang7Yanxiang Wu8Jieqiong Zhang9Academy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaChina National Institute of Standardization, Beijing 100191, ChinaAcademy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaAcademy of National Food and Strategic Reserves Administration, Beijing 100037, China; Corresponding authors.Academy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaChina National Institute of Standardization, Beijing 100191, China; Corresponding authors.Academy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaAcademy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaAcademy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaAcademy of National Food and Strategic Reserves Administration, Beijing 100037, ChinaA rapid, simple, and accurate voltammetric method for quantifying total inorganic arsenic in rice was described in this work. The simplified sample pretreatment involved the addition of a mixed solution of nitric acid and L-cysteine, which facilitated the simultaneous extraction and speciation of arsenic (As(III)). To eliminate interference from complex rice matrices, magnetic composites were employed to absorb copper and other potential interference. Furthermore, As(III) was detected using linear stripping voltammetry with screen-printed electrodes modified in-situ with gold nanoparticles and L-cysteine, enhancing both sensitivity and selectivity. With this strategy, the methodology demonstrated good resistance to interference and high sensitivity, with a detection limit of 0.018 mg/kg. A comparative analysis between this method and liquid chromatography coupled with inductively coupled plasma mass spectrometry (ICP-MS) showed a good correlation with an R2 of 0.995. Additionally, the method was successfully applied to determine total inorganic arsenic in commercial rice samples, yielding satisfactory results.http://www.sciencedirect.com/science/article/pii/S2590157524008915VoltammetryInorganic arsenicRiceModified-screen-printed electrodesEliminate interference |
| spellingShingle | Wei Tian Jiawei Guo Songxue Wang Minghui Zhou Yingjie He Xingjun Xi Xi Chen Yue Wang Yanxiang Wu Jieqiong Zhang Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity Food Chemistry: X Voltammetry Inorganic arsenic Rice Modified-screen-printed electrodes Eliminate interference |
| title | Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity |
| title_full | Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity |
| title_fullStr | Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity |
| title_full_unstemmed | Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity |
| title_short | Efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity |
| title_sort | efficient voltammetric analysis for total inorganic arsenic detection in rice with enhanced sensitivity and selectivity |
| topic | Voltammetry Inorganic arsenic Rice Modified-screen-printed electrodes Eliminate interference |
| url | http://www.sciencedirect.com/science/article/pii/S2590157524008915 |
| work_keys_str_mv | AT weitian efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT jiaweiguo efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT songxuewang efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT minghuizhou efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT yingjiehe efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT xingjunxi efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT xichen efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT yuewang efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT yanxiangwu efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity AT jieqiongzhang efficientvoltammetricanalysisfortotalinorganicarsenicdetectioninricewithenhancedsensitivityandselectivity |