کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1166359 | 1491115 | 2012 | 8 صفحه PDF | دانلود رایگان |

Dissolved organic matter (DOM), present in many forms in water, can interfere with analysis of organic contaminants by atmospheric pressure ionization–mass spectrometry. A quantitative analysis of this interference, or matrix effect, on organic contaminant target analyte measurements was carried out using un-fractionated and fractionated dissolved natural organic matter from the Suwannee River, GA (SROM), a standard reference material, that was directly infused into the tandem mass spectrometer during multiple reaction monitoring (MRM) of a suite of endocrine disrupting compounds–pharmaceuticals and personal care products (EDC/PPCPs). Most target analytes suffered signal suppression in the presence of both fractionated and un-fractionated SROM, however greater interferences were measured with fractionated relative to bulk SROM. This finding is consistent with the view of organic matter as a supramolecular association of low molecular mass components having separate charged and structural features revealed only after dissociation.
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► Matrix effects on EDC/PPCPs analysis were quantified by post column DOM infusion.
► Matrix effects were distinguished between Suwannee River DOM and its fractions.
► A supramolecular association of DOM is interpreted with matrix effects measurements.
► The greatest interferences were produced by fractionated DOM.
Journal: Analytica Chimica Acta - Volume 717, 2 March 2012, Pages 77–84