A combined CDB-MAGIC method for the determination of phosphorus associated with sedimentary iron oxyhydroxides
A combined CDB-MAGIC method for the determination of sedimentary Fe-oxyhydroxide-bound P in citrate–dithionite–bicarbonate (CDB) reducing solutions is described. Quantitative removal of P from solution is accomplished through the alkaline precipitation of Mg(OH) 2 (brucite) with 10 M NaOH. After sub...
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| Veröffentlicht in: | Applied geochemistry 2005-11, Vol.20 (11), p.2108-2115 |
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| container_title | Applied geochemistry |
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| creator | Huerta-Diaz, Miguel Angel Tovar-Sánchez, Antonio Filippelli, Gabriel Latimer, Jennifer Sañudo-Wilhelmy, Sergio A. |
| description | A combined CDB-MAGIC method for the determination of sedimentary Fe-oxyhydroxide-bound P in citrate–dithionite–bicarbonate (CDB) reducing solutions is described. Quantitative removal of P from solution is accomplished through the alkaline precipitation of Mg(OH)
2 (brucite) with 10
M NaOH. After subsequent separation by centrifugation and two washings with 10% NH
4OH, the precipitate is re-dissolved in 10% HCl. The P concentration in the sample is subsequently measured by the conventional molybdate blue technique using a UV–vis spectrophotometer. The detection limit of the method is 1.2
μM with precision within 1.3–8.1% in the 6–30
μM P concentration range. The results obtained using the CDB-MAGIC protocol were equivalent to those obtained using ICP-AES (
r
2
=
0.860;
p
⩽
0.001;
n
=
29; with a linear slope of 1.19
±
0.09). The CDB-MAGIC method provides then a simple, low cost alternative to the current methods based on ICP quantification. |
| doi_str_mv | 10.1016/j.apgeochem.2005.07.009 |
| format | Article |
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2 (brucite) with 10
M NaOH. After subsequent separation by centrifugation and two washings with 10% NH
4OH, the precipitate is re-dissolved in 10% HCl. The P concentration in the sample is subsequently measured by the conventional molybdate blue technique using a UV–vis spectrophotometer. The detection limit of the method is 1.2
μM with precision within 1.3–8.1% in the 6–30
μM P concentration range. The results obtained using the CDB-MAGIC protocol were equivalent to those obtained using ICP-AES (
r
2
=
0.860;
p
⩽
0.001;
n
=
29; with a linear slope of 1.19
±
0.09). The CDB-MAGIC method provides then a simple, low cost alternative to the current methods based on ICP quantification.</description><identifier>ISSN: 0883-2927</identifier><identifier>EISSN: 1872-9134</identifier><identifier>DOI: 10.1016/j.apgeochem.2005.07.009</identifier><identifier>CODEN: APPGEY</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Earth sciences ; Earth, ocean, space ; Engineering and environment geology. Geothermics ; Exact sciences and technology ; Geochemistry ; Pollution, environment geology</subject><ispartof>Applied geochemistry, 2005-11, Vol.20 (11), p.2108-2115</ispartof><rights>2005 Elsevier Ltd</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a399t-eeeb0eec7176ed8b0f397b2699e1ac756b37b663b00dd62a03fa15baa83fe4683</citedby><cites>FETCH-LOGICAL-a399t-eeeb0eec7176ed8b0f397b2699e1ac756b37b663b00dd62a03fa15baa83fe4683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.apgeochem.2005.07.009$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17197022$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Huerta-Diaz, Miguel Angel</creatorcontrib><creatorcontrib>Tovar-Sánchez, Antonio</creatorcontrib><creatorcontrib>Filippelli, Gabriel</creatorcontrib><creatorcontrib>Latimer, Jennifer</creatorcontrib><creatorcontrib>Sañudo-Wilhelmy, Sergio A.</creatorcontrib><title>A combined CDB-MAGIC method for the determination of phosphorus associated with sedimentary iron oxyhydroxides</title><title>Applied geochemistry</title><description>A combined CDB-MAGIC method for the determination of sedimentary Fe-oxyhydroxide-bound P in citrate–dithionite–bicarbonate (CDB) reducing solutions is described. Quantitative removal of P from solution is accomplished through the alkaline precipitation of Mg(OH)
2 (brucite) with 10
M NaOH. After subsequent separation by centrifugation and two washings with 10% NH
4OH, the precipitate is re-dissolved in 10% HCl. The P concentration in the sample is subsequently measured by the conventional molybdate blue technique using a UV–vis spectrophotometer. The detection limit of the method is 1.2
μM with precision within 1.3–8.1% in the 6–30
μM P concentration range. The results obtained using the CDB-MAGIC protocol were equivalent to those obtained using ICP-AES (
r
2
=
0.860;
p
⩽
0.001;
n
=
29; with a linear slope of 1.19
±
0.09). The CDB-MAGIC method provides then a simple, low cost alternative to the current methods based on ICP quantification.</description><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Engineering and environment geology. Geothermics</subject><subject>Exact sciences and technology</subject><subject>Geochemistry</subject><subject>Pollution, environment geology</subject><issn>0883-2927</issn><issn>1872-9134</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkE2P0zAQhi0EEmXhN-AL3BLGdhvHx1K-VlrEBc6WY0-IqyYuHhe2_x5XXcFxDyNfntfvzMPYawGtANG927fu-BOTn3BuJcCmBd0CmCdsJXotGyPU-ilbQd-rRhqpn7MXRHuooAa5YsuW-zQPccHAdx_eN1-3n293fMYypcDHlHmZkAcsmOe4uBLTwtPIj1OiOvlE3BElH12p-T-xTJwwxBmX4vKZx3zB78_TOeR0HwPSS_ZsdAfCVw_vDfvx6eP33Zfm7lvt3d41ThlTGkQcANFroTsM_QCjMnqQnTEonNebblB66Do1AITQSQdqdGIzONerEdddr27Y2-u_x5x-nZCKnSN5PBzcgulEVhgNm7XWFdRX0OdElHG0xxznurwVYC9-7d7-82svfi1oW_3W5JuHCkfeHcbsFh_pf1xfOqSs3PbKYb33d8RsyUdcfPWU0RcbUny06y93z5d-</recordid><startdate>20051101</startdate><enddate>20051101</enddate><creator>Huerta-Diaz, Miguel Angel</creator><creator>Tovar-Sánchez, Antonio</creator><creator>Filippelli, Gabriel</creator><creator>Latimer, Jennifer</creator><creator>Sañudo-Wilhelmy, Sergio A.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>20051101</creationdate><title>A combined CDB-MAGIC method for the determination of phosphorus associated with sedimentary iron oxyhydroxides</title><author>Huerta-Diaz, Miguel Angel ; Tovar-Sánchez, Antonio ; Filippelli, Gabriel ; Latimer, Jennifer ; Sañudo-Wilhelmy, Sergio A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a399t-eeeb0eec7176ed8b0f397b2699e1ac756b37b663b00dd62a03fa15baa83fe4683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Engineering and environment geology. Geothermics</topic><topic>Exact sciences and technology</topic><topic>Geochemistry</topic><topic>Pollution, environment geology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huerta-Diaz, Miguel Angel</creatorcontrib><creatorcontrib>Tovar-Sánchez, Antonio</creatorcontrib><creatorcontrib>Filippelli, Gabriel</creatorcontrib><creatorcontrib>Latimer, Jennifer</creatorcontrib><creatorcontrib>Sañudo-Wilhelmy, Sergio A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Applied geochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huerta-Diaz, Miguel Angel</au><au>Tovar-Sánchez, Antonio</au><au>Filippelli, Gabriel</au><au>Latimer, Jennifer</au><au>Sañudo-Wilhelmy, Sergio A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A combined CDB-MAGIC method for the determination of phosphorus associated with sedimentary iron oxyhydroxides</atitle><jtitle>Applied geochemistry</jtitle><date>2005-11-01</date><risdate>2005</risdate><volume>20</volume><issue>11</issue><spage>2108</spage><epage>2115</epage><pages>2108-2115</pages><issn>0883-2927</issn><eissn>1872-9134</eissn><coden>APPGEY</coden><abstract>A combined CDB-MAGIC method for the determination of sedimentary Fe-oxyhydroxide-bound P in citrate–dithionite–bicarbonate (CDB) reducing solutions is described. Quantitative removal of P from solution is accomplished through the alkaline precipitation of Mg(OH)
2 (brucite) with 10
M NaOH. After subsequent separation by centrifugation and two washings with 10% NH
4OH, the precipitate is re-dissolved in 10% HCl. The P concentration in the sample is subsequently measured by the conventional molybdate blue technique using a UV–vis spectrophotometer. The detection limit of the method is 1.2
μM with precision within 1.3–8.1% in the 6–30
μM P concentration range. The results obtained using the CDB-MAGIC protocol were equivalent to those obtained using ICP-AES (
r
2
=
0.860;
p
⩽
0.001;
n
=
29; with a linear slope of 1.19
±
0.09). The CDB-MAGIC method provides then a simple, low cost alternative to the current methods based on ICP quantification.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.apgeochem.2005.07.009</doi><tpages>8</tpages></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Exact sciences and technology Geochemistry Pollution, environment geology |
| title | A combined CDB-MAGIC method for the determination of phosphorus associated with sedimentary iron oxyhydroxides |
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