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Speciation of As in environmental samples using the nano-TiO2/PCHG-FAAS online system
This work presents an alternative method for arsenic speciation using the nano-TiO 2 hydride generation photocatalytic hydride generation (PCHG) system, which is easily separated from the medium. Nano-TiO 2 was studied as photocatalyst to reduction of arsenic species by UV-induced with formic acid a...
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| Published in: | Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering Toxic/hazardous substances & environmental engineering, 2017-09, Vol.52 (11), p.1089-1098 |
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| Format: | Article |
| Language: | English |
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| container_end_page | 1098 |
| container_issue | 11 |
| container_start_page | 1089 |
| container_title | Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering |
| container_volume | 52 |
| creator | Pinheiro, Bianca S. Gimenes, Luana L. Moreira, Ailton J. de Araújo, André F. Freschi, Carolina D. Freschi, Gian Paulo Giovanni |
| description | This work presents an alternative method for arsenic speciation using the nano-TiO
2
hydride generation photocatalytic hydride generation (PCHG) system, which is easily separated from the medium. Nano-TiO
2
was studied as photocatalyst to reduction of arsenic species by UV-induced with formic acid and atomic absorption detection of different forms of arsenic [As (III), As (V), dimethylarsinic acid (DMA)] in environmental samples (water, sediment and plant). The effect of the average pH, the organic acid concentration, the ultraviolet irradiation time and their amount were investigated. With the presence of formic acid, the process was more effective in the reduction of arsenic when compared to other organic acids, mainly acetic acid. In addition, the photocatalytic hydride generation and flame atomic absorption spectrometry (nano-TiO
2
/PCHG-FAAS) increased the identification and quantification of different arsenic species. The ultrasound extraction procedure was used as a method to prepare samples with solutions of 1.0 mol L
−1
phosphoric acid. The accuracy of the measurements (n = 12), calculated as relative standard deviation, was less than 8.6%. The detection limits for As (III) and As (total) in samples were 0.418 and 0.574 μg g
−1
, respectively. |
| doi_str_mv | 10.1080/10934529.2017.1340749 |
| format | article |
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2
hydride generation photocatalytic hydride generation (PCHG) system, which is easily separated from the medium. Nano-TiO
2
was studied as photocatalyst to reduction of arsenic species by UV-induced with formic acid and atomic absorption detection of different forms of arsenic [As (III), As (V), dimethylarsinic acid (DMA)] in environmental samples (water, sediment and plant). The effect of the average pH, the organic acid concentration, the ultraviolet irradiation time and their amount were investigated. With the presence of formic acid, the process was more effective in the reduction of arsenic when compared to other organic acids, mainly acetic acid. In addition, the photocatalytic hydride generation and flame atomic absorption spectrometry (nano-TiO
2
/PCHG-FAAS) increased the identification and quantification of different arsenic species. The ultrasound extraction procedure was used as a method to prepare samples with solutions of 1.0 mol L
−1
phosphoric acid. The accuracy of the measurements (n = 12), calculated as relative standard deviation, was less than 8.6%. The detection limits for As (III) and As (total) in samples were 0.418 and 0.574 μg g
−1
, respectively.</description><identifier>ISSN: 1093-4529</identifier><identifier>EISSN: 1532-4117</identifier><identifier>DOI: 10.1080/10934529.2017.1340749</identifier><language>eng</language><publisher>Philadelphia: Taylor & Francis</publisher><subject>Absorption ; Absorption spectroscopy ; Acetic acid ; Acids ; Arsenic ; Atomic absorption analysis ; Detection limits ; Dimethylarsinic acid ; Environmental samples and arsenic speciation ; Formic acid ; Irradiation ; Nano-TiO ; On-line systems ; Organic acids ; pH effects ; Phosphoric acid ; Photocatalysis ; photocatalytic hydride generation (PCHG) ; Reduction ; Speciation ; Spectral analysis ; Spectrometry ; Titanium dioxide ; Ultrasound ; Ultraviolet radiation ; UV</subject><ispartof>Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 2017-09, Vol.52 (11), p.1089-1098</ispartof><rights>2017 Taylor & Francis Group, LLC 2017</rights><rights>2017 Taylor & Francis Group, LLC</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-0741-8840 ; 0000-0002-5324-2893 ; 0000-0002-9240-7750 ; 0000-0001-6721-1222 ; 0000-0001-8153-3543 ; 0000-0003-4934-8529</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Pinheiro, Bianca S.</creatorcontrib><creatorcontrib>Gimenes, Luana L.</creatorcontrib><creatorcontrib>Moreira, Ailton J.</creatorcontrib><creatorcontrib>de Araújo, André F.</creatorcontrib><creatorcontrib>Freschi, Carolina D.</creatorcontrib><creatorcontrib>Freschi, Gian Paulo Giovanni</creatorcontrib><title>Speciation of As in environmental samples using the nano-TiO2/PCHG-FAAS online system</title><title>Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering</title><description>This work presents an alternative method for arsenic speciation using the nano-TiO
2
hydride generation photocatalytic hydride generation (PCHG) system, which is easily separated from the medium. Nano-TiO
2
was studied as photocatalyst to reduction of arsenic species by UV-induced with formic acid and atomic absorption detection of different forms of arsenic [As (III), As (V), dimethylarsinic acid (DMA)] in environmental samples (water, sediment and plant). The effect of the average pH, the organic acid concentration, the ultraviolet irradiation time and their amount were investigated. With the presence of formic acid, the process was more effective in the reduction of arsenic when compared to other organic acids, mainly acetic acid. In addition, the photocatalytic hydride generation and flame atomic absorption spectrometry (nano-TiO
2
/PCHG-FAAS) increased the identification and quantification of different arsenic species. The ultrasound extraction procedure was used as a method to prepare samples with solutions of 1.0 mol L
−1
phosphoric acid. The accuracy of the measurements (n = 12), calculated as relative standard deviation, was less than 8.6%. The detection limits for As (III) and As (total) in samples were 0.418 and 0.574 μg g
−1
, respectively.</description><subject>Absorption</subject><subject>Absorption spectroscopy</subject><subject>Acetic acid</subject><subject>Acids</subject><subject>Arsenic</subject><subject>Atomic absorption analysis</subject><subject>Detection limits</subject><subject>Dimethylarsinic acid</subject><subject>Environmental samples and arsenic speciation</subject><subject>Formic acid</subject><subject>Irradiation</subject><subject>Nano-TiO</subject><subject>On-line systems</subject><subject>Organic acids</subject><subject>pH effects</subject><subject>Phosphoric acid</subject><subject>Photocatalysis</subject><subject>photocatalytic hydride generation (PCHG)</subject><subject>Reduction</subject><subject>Speciation</subject><subject>Spectral analysis</subject><subject>Spectrometry</subject><subject>Titanium dioxide</subject><subject>Ultrasound</subject><subject>Ultraviolet radiation</subject><subject>UV</subject><issn>1093-4529</issn><issn>1532-4117</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNpd0M9LwzAUwPEgCs7pnyAEvHjpll9N0ptluE0YTNh2DlmaakaazKZT9t_bsXnx9N7hw-PxBeARoxFGEo0xKijLSTEiCIsRpgwJVlyBAc4pyRjG4rrfe5Od0C24S2mHEJYU5wOwWe2tcbpzMcBYwzJBF6AN366NobGh0x4m3ey9TfCQXPiA3aeFQYeYrd2SjN8n81k2LcsVjMG7YGE6ps429-Cm1j7Zh8scgs30dT2ZZ4vl7G1SLjJHBO0ywY2VrOD1VkteU8IZl1UlLN5ig6jJKymEkXRbIGa0MQwZTnjNSF1ZgyxBdAiez3f3bfw62NSpxiVjvdfBxkNSuKBE5qgfPX36R3fx0Ib-u16xXCDKezYEL2flQh3bRv_E1leq00cf27rVwbikKEbq1F39dVen7urSnf4CE250rw</recordid><startdate>20170919</startdate><enddate>20170919</enddate><creator>Pinheiro, Bianca S.</creator><creator>Gimenes, Luana L.</creator><creator>Moreira, Ailton J.</creator><creator>de Araújo, André F.</creator><creator>Freschi, Carolina D.</creator><creator>Freschi, Gian Paulo Giovanni</creator><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>7QF</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>7U7</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-0741-8840</orcidid><orcidid>https://orcid.org/0000-0002-5324-2893</orcidid><orcidid>https://orcid.org/0000-0002-9240-7750</orcidid><orcidid>https://orcid.org/0000-0001-6721-1222</orcidid><orcidid>https://orcid.org/0000-0001-8153-3543</orcidid><orcidid>https://orcid.org/0000-0003-4934-8529</orcidid></search><sort><creationdate>20170919</creationdate><title>Speciation of As in environmental samples using the nano-TiO2/PCHG-FAAS online system</title><author>Pinheiro, Bianca S. ; Gimenes, Luana L. ; Moreira, Ailton J. ; de Araújo, André F. ; Freschi, Carolina D. ; Freschi, Gian Paulo Giovanni</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i273t-76ce8496fba86f326468dd7e1b1c03c5d877c83b904cacc40c626f42fdec0e203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Absorption</topic><topic>Absorption spectroscopy</topic><topic>Acetic acid</topic><topic>Acids</topic><topic>Arsenic</topic><topic>Atomic absorption analysis</topic><topic>Detection limits</topic><topic>Dimethylarsinic acid</topic><topic>Environmental samples and arsenic speciation</topic><topic>Formic acid</topic><topic>Irradiation</topic><topic>Nano-TiO</topic><topic>On-line systems</topic><topic>Organic acids</topic><topic>pH effects</topic><topic>Phosphoric acid</topic><topic>Photocatalysis</topic><topic>photocatalytic hydride generation (PCHG)</topic><topic>Reduction</topic><topic>Speciation</topic><topic>Spectral analysis</topic><topic>Spectrometry</topic><topic>Titanium dioxide</topic><topic>Ultrasound</topic><topic>Ultraviolet radiation</topic><topic>UV</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pinheiro, Bianca S.</creatorcontrib><creatorcontrib>Gimenes, Luana L.</creatorcontrib><creatorcontrib>Moreira, Ailton J.</creatorcontrib><creatorcontrib>de Araújo, André F.</creatorcontrib><creatorcontrib>Freschi, Carolina D.</creatorcontrib><creatorcontrib>Freschi, Gian Paulo Giovanni</creatorcontrib><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Toxicology Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pinheiro, Bianca S.</au><au>Gimenes, Luana L.</au><au>Moreira, Ailton J.</au><au>de Araújo, André F.</au><au>Freschi, Carolina D.</au><au>Freschi, Gian Paulo Giovanni</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Speciation of As in environmental samples using the nano-TiO2/PCHG-FAAS online system</atitle><jtitle>Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering</jtitle><date>2017-09-19</date><risdate>2017</risdate><volume>52</volume><issue>11</issue><spage>1089</spage><epage>1098</epage><pages>1089-1098</pages><issn>1093-4529</issn><eissn>1532-4117</eissn><abstract>This work presents an alternative method for arsenic speciation using the nano-TiO
2
hydride generation photocatalytic hydride generation (PCHG) system, which is easily separated from the medium. Nano-TiO
2
was studied as photocatalyst to reduction of arsenic species by UV-induced with formic acid and atomic absorption detection of different forms of arsenic [As (III), As (V), dimethylarsinic acid (DMA)] in environmental samples (water, sediment and plant). The effect of the average pH, the organic acid concentration, the ultraviolet irradiation time and their amount were investigated. With the presence of formic acid, the process was more effective in the reduction of arsenic when compared to other organic acids, mainly acetic acid. In addition, the photocatalytic hydride generation and flame atomic absorption spectrometry (nano-TiO
2
/PCHG-FAAS) increased the identification and quantification of different arsenic species. The ultrasound extraction procedure was used as a method to prepare samples with solutions of 1.0 mol L
−1
phosphoric acid. The accuracy of the measurements (n = 12), calculated as relative standard deviation, was less than 8.6%. The detection limits for As (III) and As (total) in samples were 0.418 and 0.574 μg g
−1
, respectively.</abstract><cop>Philadelphia</cop><pub>Taylor & Francis</pub><doi>10.1080/10934529.2017.1340749</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-0741-8840</orcidid><orcidid>https://orcid.org/0000-0002-5324-2893</orcidid><orcidid>https://orcid.org/0000-0002-9240-7750</orcidid><orcidid>https://orcid.org/0000-0001-6721-1222</orcidid><orcidid>https://orcid.org/0000-0001-8153-3543</orcidid><orcidid>https://orcid.org/0000-0003-4934-8529</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1093-4529 |
| ispartof | Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 2017-09, Vol.52 (11), p.1089-1098 |
| issn | 1093-4529 1532-4117 |
| language | eng |
| recordid | cdi_proquest_journals_1945703619 |
| source | Taylor and Francis Science and Technology Collection |
| subjects | Absorption Absorption spectroscopy Acetic acid Acids Arsenic Atomic absorption analysis Detection limits Dimethylarsinic acid Environmental samples and arsenic speciation Formic acid Irradiation Nano-TiO On-line systems Organic acids pH effects Phosphoric acid Photocatalysis photocatalytic hydride generation (PCHG) Reduction Speciation Spectral analysis Spectrometry Titanium dioxide Ultrasound Ultraviolet radiation UV |
| title | Speciation of As in environmental samples using the nano-TiO2/PCHG-FAAS online system |
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