Sorption of Polycyclic Aromatic Hydrocarbons onto Natural Solids: Determination by Fluorescence Quenching Method
A fluorescence quenching method was used to determine the sorption of polycyclic aromatic hydrocarbons (PAHs) onto natural solids in batch experiments. This method is based upon the observation that PAHs fluoresce in aqueous solution but not when associated with natural solids. It avoids problems of...
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| Veröffentlicht in: | Water science and technology 1991-01, Vol.23 (1-3), p.427-436 |
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| creator | Shimizu, Y Liljestrand, H M |
| description | A fluorescence quenching method was used to determine the sorption of polycyclic aromatic hydrocarbons (PAHs) onto natural solids in batch experiments. This method is based upon the observation that PAHs fluoresce in aqueous solution but not when associated with natural solids. It avoids problems of incomplete solid-liquid separation. As natural solids, eleven different USEPA soils and sediments were used. Anthracene and 2-aminoanthracene, which are respectively non-ionic and ionic PAHs, were chosen as sorbates. The fractional decrease in fluorescence intensity as a function of added natural solid concentration is referred to as Stem-Volmer plots. The plots were linear for all natural solids investigated. The conditional sorption coefficients (Ksc) at pH 6 through 8 and I=0.1 M were obtained as the slopes of the plots. While the Ksc values of anthracene were independent of pH, the values of 2-aminoanthracene decreased with increasing pH. The Ksc values of anthracene correlated well with the organic carbon content of natural solids. However, the values of 2-aminoanthracene did not depend on the content of organic carbon in natural solids. For 2-aminoanthracene, inorganic matrices of the natural solids may contribute to the sorption. |
| doi_str_mv | 10.2166/wst.1991.0442 |
| format | Article |
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This method is based upon the observation that PAHs fluoresce in aqueous solution but not when associated with natural solids. It avoids problems of incomplete solid-liquid separation. As natural solids, eleven different USEPA soils and sediments were used. Anthracene and 2-aminoanthracene, which are respectively non-ionic and ionic PAHs, were chosen as sorbates. The fractional decrease in fluorescence intensity as a function of added natural solid concentration is referred to as Stem-Volmer plots. The plots were linear for all natural solids investigated. The conditional sorption coefficients (Ksc) at pH 6 through 8 and I=0.1 M were obtained as the slopes of the plots. While the Ksc values of anthracene were independent of pH, the values of 2-aminoanthracene decreased with increasing pH. The Ksc values of anthracene correlated well with the organic carbon content of natural solids. However, the values of 2-aminoanthracene did not depend on the content of organic carbon in natural solids. For 2-aminoanthracene, inorganic matrices of the natural solids may contribute to the sorption.</description><identifier>ISSN: 0273-1223</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.1991.0442</identifier><language>eng</language><publisher>London: IWA Publishing</publisher><subject>2-Aminoanthracene ; Anthracene ; Aromatic compounds ; Aromatic hydrocarbons ; Carbon content ; Coefficients ; Fluorescence ; Methods ; Organic carbon ; pH effects ; Polycyclic aromatic hydrocarbons ; Quenching ; Sediments ; Slope ; Soil ; Soil contaminants ; Solids ; Sorbates ; Sorption ; VOCs ; Volatile organic compounds</subject><ispartof>Water science and technology, 1991-01, Vol.23 (1-3), p.427-436</ispartof><rights>Copyright IWA Publishing Jan 1991</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-7660d80981e8d960b29f0b180c53d07d66a65d6936e78fd5f5daaea7d84f02b93</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,27907,27908</link.rule.ids></links><search><creatorcontrib>Shimizu, Y</creatorcontrib><creatorcontrib>Liljestrand, H M</creatorcontrib><title>Sorption of Polycyclic Aromatic Hydrocarbons onto Natural Solids: Determination by Fluorescence Quenching Method</title><title>Water science and technology</title><description>A fluorescence quenching method was used to determine the sorption of polycyclic aromatic hydrocarbons (PAHs) onto natural solids in batch experiments. This method is based upon the observation that PAHs fluoresce in aqueous solution but not when associated with natural solids. It avoids problems of incomplete solid-liquid separation. As natural solids, eleven different USEPA soils and sediments were used. Anthracene and 2-aminoanthracene, which are respectively non-ionic and ionic PAHs, were chosen as sorbates. The fractional decrease in fluorescence intensity as a function of added natural solid concentration is referred to as Stem-Volmer plots. The plots were linear for all natural solids investigated. The conditional sorption coefficients (Ksc) at pH 6 through 8 and I=0.1 M were obtained as the slopes of the plots. While the Ksc values of anthracene were independent of pH, the values of 2-aminoanthracene decreased with increasing pH. The Ksc values of anthracene correlated well with the organic carbon content of natural solids. However, the values of 2-aminoanthracene did not depend on the content of organic carbon in natural solids. For 2-aminoanthracene, inorganic matrices of the natural solids may contribute to the sorption.</description><subject>2-Aminoanthracene</subject><subject>Anthracene</subject><subject>Aromatic compounds</subject><subject>Aromatic hydrocarbons</subject><subject>Carbon content</subject><subject>Coefficients</subject><subject>Fluorescence</subject><subject>Methods</subject><subject>Organic carbon</subject><subject>pH effects</subject><subject>Polycyclic aromatic hydrocarbons</subject><subject>Quenching</subject><subject>Sediments</subject><subject>Slope</subject><subject>Soil</subject><subject>Soil contaminants</subject><subject>Solids</subject><subject>Sorbates</subject><subject>Sorption</subject><subject>VOCs</subject><subject>Volatile organic compounds</subject><issn>0273-1223</issn><issn>1996-9732</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkTtPwzAUhS0EEqUwsltCYkvxK3bMVgGlSOWlwmw5tkNTpXGxHaH8e1LKxMR0zvDp6F59AJxjNCGY86uvmCZYSjxBjJEDMBo6z6Sg5BCMEBE0w4TQY3AS4xohJChDI7Bd-rBNtW-hr-CLb3rTm6Y2cBr8RqehzHsbvNGh9G2Evk0ePunUBd3ApW9qG6_hrUsubOpW_8yUPZw1nQ8uGtcaB1-7IVZ1-wEfXVp5ewqOKt1Ed_abY_A-u3u7mWeL5_uHm-kiM1TilAnOkS2QLLArrOSoJLJCJS6QyalFwnKueW65pNyJorJ5lVutnRa2YBUipaRjcLnf3Qb_2bmY1KYeTmoa3TrfRYUZkYLk_wCpYAxzPIAXf8C170I7PKGwZJRQRshuLttTJvgYg6vUNtQbHXqFkdppUoMmtdOkdproN_gBhuI</recordid><startdate>19910101</startdate><enddate>19910101</enddate><creator>Shimizu, Y</creator><creator>Liljestrand, H M</creator><general>IWA Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7ST</scope><scope>SOI</scope></search><sort><creationdate>19910101</creationdate><title>Sorption of Polycyclic Aromatic Hydrocarbons onto Natural Solids: Determination by Fluorescence Quenching Method</title><author>Shimizu, Y ; 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This method is based upon the observation that PAHs fluoresce in aqueous solution but not when associated with natural solids. It avoids problems of incomplete solid-liquid separation. As natural solids, eleven different USEPA soils and sediments were used. Anthracene and 2-aminoanthracene, which are respectively non-ionic and ionic PAHs, were chosen as sorbates. The fractional decrease in fluorescence intensity as a function of added natural solid concentration is referred to as Stem-Volmer plots. The plots were linear for all natural solids investigated. The conditional sorption coefficients (Ksc) at pH 6 through 8 and I=0.1 M were obtained as the slopes of the plots. While the Ksc values of anthracene were independent of pH, the values of 2-aminoanthracene decreased with increasing pH. The Ksc values of anthracene correlated well with the organic carbon content of natural solids. However, the values of 2-aminoanthracene did not depend on the content of organic carbon in natural solids. For 2-aminoanthracene, inorganic matrices of the natural solids may contribute to the sorption.</abstract><cop>London</cop><pub>IWA Publishing</pub><doi>10.2166/wst.1991.0442</doi><tpages>10</tpages></addata></record> |
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| ispartof | Water science and technology, 1991-01, Vol.23 (1-3), p.427-436 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | 2-Aminoanthracene Anthracene Aromatic compounds Aromatic hydrocarbons Carbon content Coefficients Fluorescence Methods Organic carbon pH effects Polycyclic aromatic hydrocarbons Quenching Sediments Slope Soil Soil contaminants Solids Sorbates Sorption VOCs Volatile organic compounds |
| title | Sorption of Polycyclic Aromatic Hydrocarbons onto Natural Solids: Determination by Fluorescence Quenching Method |
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