Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | CHLORIDE INTERFERENCE IN THE DETERMINATION OF BROMATE IN DRINKING WATER BY REAGENT FREE ION CHROMATOGRAPHY WITH MASS SPECTROMETRY DETECTION |
| Abstract | Bromate, a well known by-product of the ozonation of drinking water, has been included among the substances which have to be monitored in the drinking water according to the last EC Directive 251/98 on potable water with a regulated limit of 10 mu g l(-1). The need of performing routine analysis at this limit is a driving force for the developing of new simple and sensitive methods of detection, which should be also able to overcome the effect of matrix composition. This work explored the use of mass spectrometry detection with electrospray ionisation hyphenated to a reagent free ion chromatograph with hydroxide gradient elution for the determination of bromate in drinking water. The use of a high capacity hydroxide selective column operated in gradient mode allowed to avoid the interference by carbonate peak, which moved to longer retention times. The effect of increasing chloride concentrations from 0 to 250 mgl(-1), which is the guideline limit for drinking water in Directive 251/98/EC, was to decrease absolute mass spectrometric response and chromatographic efficiency and, on the consequence, to increase the effective detection limits. The effect of the chloride concentration on the detection of bromate is discussed. |
| Source | Journal of chromatography (Print) 1085, pp. 42–46 |
| Journal | Journal of chromatography (Print) |
| Editor | Elsevier, Amsterdam, Paesi Bassi |
| Year | 2005 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.chroma.2004.12.089 |
| Authors | CAVALLI S., POLESELLO S., VALSECCHI S. |
| Text | 42164 2005 10.1016/j.chroma.2004.12.089 ISI Web of Science WOS 000230945300008 CHLORIDE INTERFERENCE IN THE DETERMINATION OF BROMATE IN DRINKING WATER BY REAGENT FREE ION CHROMATOGRAPHY WITH MASS SPECTROMETRY DETECTION CAVALLI S., POLESELLO S., VALSECCHI S. CAVALLI S Dionex, I 20090 Pieve Emanuele, MI, Italy POLESELLO S., VALSECCHI S. CNR, IRSA, I 20047 Brugherio, MI, Italy Bromate, a well known by product of the ozonation of drinking water, has been included among the substances which have to be monitored in the drinking water according to the last EC Directive 251/98 on potable water with a regulated limit of 10 mu g l 1 . The need of performing routine analysis at this limit is a driving force for the developing of new simple and sensitive methods of detection, which should be also able to overcome the effect of matrix composition. This work explored the use of mass spectrometry detection with electrospray ionisation hyphenated to a reagent free ion chromatograph with hydroxide gradient elution for the determination of bromate in drinking water. The use of a high capacity hydroxide selective column operated in gradient mode allowed to avoid the interference by carbonate peak, which moved to longer retention times. The effect of increasing chloride concentrations from 0 to 250 mgl 1 , which is the guideline limit for drinking water in Directive 251/98/EC, was to decrease absolute mass spectrometric response and chromatographic efficiency and, on the consequence, to increase the effective detection limits. The effect of the chloride concentration on the detection of bromate is discussed. 1085 articolo CavallietalJChrom2005Bromate.pdf Articolo in rivista Elsevier 0021 9673 Journal of chromatography Print Journal of chromatography Print J. chromatogr. Print Journal of chromatography. Print Journal of chromatography. A Print stefano.polesello POLESELLO STEFANO saramaria.valsecchi VALSECCHI SARA MARIA TA.P03.011.004 Macrocostituenti inorganici ed inquinanti organici emergenti nel ciclo idrologico in aree remote e densamente abitate |