Simple determination of nonionic surfactants in highly-polluted aqueous samples

• Authors: Marek Šváb , Martina Švábová , Petra Mečířová
• Languages of publication: EN

Abstracts

EN

This study examined the direct spectrometric method for determining non-ionic surfactants in highly-polluted samples (i.e., soil leachates) containing high concentrations of humic acids. Meso-tetra-(3,5-dibromo-4-hydrooxyphenyl)-porphyrin served as a coloration agent. The method was tested by use of two polyethoxylate/polypropoxylate - based non-ionic surfactants: Triton CF-21 containing aromatic groups in the structure and Novanik 1047A containing only linear hydrocarbon chains. The main goal was to quantify the influence of interfering species to the results. A test for coincidence of regression lines was employed for objective evaluation of the humic acid influence on the determination. It was observed that for linear surfactant Novanik 1047 A the method provides reliable result and thus, can serve for routine analyses. Regarding Triton CF-21, an interfering effect of humic acids was observed; however, after sufficient dilution of the samples, the method can be used as well. Finally, the method can be used for simple analyses of problematic samples without complicated sample-pretreatment. [...]

Keywords

EN

Nonionic surfactant; Soil leachate; Spectrophotometric determination; Pb(II)-T(DBHP)P

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2011
• Volume: 9
• Issue: 6
• Pages: 1150-1157

Dates

published

1 - 12 - 2011

online

27 - 9 - 2011

Contributors

author

Marek Šváb

• Department of Gas, Coke and Air Protection, Institute of Chemical Technology, 166 28, Prague, Czech Republic

author

Martina Švábová

• Institute of Rock Structure and Mechanics, Academy of Science of the Czech Republic, 182 09, Prague, Czech Republic

author

Petra Mečířová

• Department of Gas, Coke and Air Protection, Institute of Chemical Technology, 166 28, Prague, Czech Republic

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Identifiers

DOI

10.2478/s11532-011-0100-0