Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples
A sensitive solvent-free extraction protocol for the quantification of arsenic at trace level has been described. It is based on the reaction of arsenic (V) with molybdate in acidic medium in presence of antimony (III) and ascorbic acid as a reducing agent to form a blue-colored arsenomolybdenum blu...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/837672 |
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| _version_ | 1849412019706396672 |
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| author | Kempahanumakkagari Suresh Kumar Malingappa Pandurangappa |
| author_facet | Kempahanumakkagari Suresh Kumar Malingappa Pandurangappa |
| author_sort | Kempahanumakkagari Suresh Kumar |
| collection | DOAJ |
| description | A sensitive solvent-free extraction protocol for the quantification of arsenic at trace level has been described. It is based on the reaction of arsenic (V) with molybdate in acidic medium in presence of antimony (III) and ascorbic acid as a reducing agent to form a blue-colored arsenomolybdenum blue complex. The complex has been extracted into surfactant phase using Triton X-114, and its absorbance was measured at 690 nm. The detection limit, working range, and the relative standard deviation were found to be 1 ng mL−1, 10–200 ng mL−1, and 1.2%, respectively. The effect of common ions was studied, and the method has been applied to determine trace levels of As(III) and As(V) from a variety of samples like environmental, biological, and commercially procured chemicals. |
| format | Article |
| id | doaj-art-65737a977523427195f80ebc8cb8d7a2 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-65737a977523427195f80ebc8cb8d7a22025-08-20T03:34:35ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/837672837672Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental SamplesKempahanumakkagari Suresh Kumar0Malingappa Pandurangappa1Department of Studies in Chemistry, Bangalore University, Central College Campus, Dr. Ambedkar Veedhi, Bangalore 5600 01, IndiaDepartment of Studies in Chemistry, Bangalore University, Central College Campus, Dr. Ambedkar Veedhi, Bangalore 5600 01, IndiaA sensitive solvent-free extraction protocol for the quantification of arsenic at trace level has been described. It is based on the reaction of arsenic (V) with molybdate in acidic medium in presence of antimony (III) and ascorbic acid as a reducing agent to form a blue-colored arsenomolybdenum blue complex. The complex has been extracted into surfactant phase using Triton X-114, and its absorbance was measured at 690 nm. The detection limit, working range, and the relative standard deviation were found to be 1 ng mL−1, 10–200 ng mL−1, and 1.2%, respectively. The effect of common ions was studied, and the method has been applied to determine trace levels of As(III) and As(V) from a variety of samples like environmental, biological, and commercially procured chemicals.http://dx.doi.org/10.1100/2012/837672 |
| spellingShingle | Kempahanumakkagari Suresh Kumar Malingappa Pandurangappa Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples The Scientific World Journal |
| title | Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples |
| title_full | Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples |
| title_fullStr | Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples |
| title_full_unstemmed | Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples |
| title_short | Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples |
| title_sort | trace level arsenic quantification through cloud point extraction application to biological and environmental samples |
| url | http://dx.doi.org/10.1100/2012/837672 |
| work_keys_str_mv | AT kempahanumakkagarisureshkumar tracelevelarsenicquantificationthroughcloudpointextractionapplicationtobiologicalandenvironmentalsamples AT malingappapandurangappa tracelevelarsenicquantificationthroughcloudpointextractionapplicationtobiologicalandenvironmentalsamples |