Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences

dc.contributor.authorRistow, N E
dc.contributor.authorSotemann, S W
dc.contributor.authorWentzel, M C
dc.contributor.authorLoewenthal, R E
dc.contributor.authorEkama, G A
dc.date.accessioned2018-01-16T10:12:00Z
dc.date.available2018-01-16T10:12:00Z
dc.date.issued2005
dc.date.updated2017-11-15T08:43:28Z
dc.description.abstractSulphate measurement using a barium sulphate turbidimetric method in solutions with high concentrations of organic material is shown to be problematic. The organics give background colour, which introduces a positive error to the measured absorption, and inhibit the barium sulphate precipitate, which results in a negative error. A carbonate fusion pretreatment of the sample results in the removal of the organic matter and associated interferences. With this pretreatment, excellent sulphate recoveries were obtained (100%). Rigorous testing of the method shows that reproducible and accurate results are obtainable.
dc.identifierhttp://dx.doi.org/10.4314/wsa.v31i2.5195
dc.identifier.apacitationRistow, N. E., Sotemann, S. W., Wentzel, M. C., Loewenthal, R. E., & Ekama, G. A. (2005). Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences. <i>Water SA</i>, http://hdl.handle.net/11427/26826en_ZA
dc.identifier.chicagocitationRistow, N E, S W Sotemann, M C Wentzel, R E Loewenthal, and G A Ekama "Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences." <i>Water SA</i> (2005) http://hdl.handle.net/11427/26826en_ZA
dc.identifier.citationRistow, N. E., Sötemann, S. W., Wentzel, M. C., Loewenthal, R. E., & Ekama, G. A. (2005). Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences. Water SA, 31(2), 267-270.
dc.identifier.ris TY - AU - Ristow, N E AU - Sotemann, S W AU - Wentzel, M C AU - Loewenthal, R E AU - Ekama, G A AB - Sulphate measurement using a barium sulphate turbidimetric method in solutions with high concentrations of organic material is shown to be problematic. The organics give background colour, which introduces a positive error to the measured absorption, and inhibit the barium sulphate precipitate, which results in a negative error. A carbonate fusion pretreatment of the sample results in the removal of the organic matter and associated interferences. With this pretreatment, excellent sulphate recoveries were obtained (100%). Rigorous testing of the method shows that reproducible and accurate results are obtainable. DA - 2005 DB - OpenUCT DP - University of Cape Town J1 - Water SA LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 T1 - Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences TI - Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences UR - http://hdl.handle.net/11427/26826 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/26826
dc.identifier.vancouvercitationRistow NE, Sotemann SW, Wentzel MC, Loewenthal RE, Ekama GA. Sulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences. Water SA. 2005; http://hdl.handle.net/11427/26826.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.sourceWater SA
dc.source.urihttps://www.ajol.info/index.php/wsa/index
dc.subject.othersulphate measurement
dc.subject.otherorganic interference
dc.subject.othercarbonate fusion
dc.titleSulphate measurement in organic-rich solutions: Carbonate fusion pretreatment to remove organic interferences
dc.typeJournal Article
uct.type.filetypeText
uct.type.filetypeImage
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