DETERMINATION OF TOTAL DISSOLVED INORGANIC CARBON IN FRESHWATERS BY REAGENT-FREE ION CHROMATOGRAPHY (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• DETERMINATION OF TOTAL DISSOLVED INORGANIC CARBON IN FRESHWATERS BY REAGENT-FREE ION CHROMATOGRAPHY (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.chroma.2006.03.015 (literal)

Alternative label

• Polesello S.; Tartari G.; Giacomotti P.; Mosello R.; Cavalli S. (2006)
  DETERMINATION OF TOTAL DISSOLVED INORGANIC CARBON IN FRESHWATERS BY REAGENT-FREE ION CHROMATOGRAPHY
  in Journal of chromatography (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Polesello S.; Tartari G.; Giacomotti P.; Mosello R.; Cavalli S. (literal)

Pagina inizio

• 56 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 1118 (literal)

Rivista

• Journal of chromatography (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Polesello S: CNR-IRSA, via Mornera 25, I-20047 Brugherio (MI), Italy Tartari G.; Giacomotti P.; Mosello R: CNR-ISE, L. go Tonolli 50, I-28922 Verbania Pallanza, Italy Cavalli S.: Dionex, via Tulipani 1, I-20090 Pieve Emanuele (MI), Italy (literal)

Titolo

• DETERMINATION OF TOTAL DISSOLVED INORGANIC CARBON IN FRESHWATERS BY REAGENT-FREE ION CHROMATOGRAPHY (literal)

Abstract

• Studies of inorganic carbon cycle in naturalwaters provide important information on the biological productivity and buffer capacity. Determination of total inorganic carbon, alkalinity and dissolved carbon dioxide gives an indication of the balance between photosynthesis and respiration by biota, both within the water column and sediments, and carbon dioxide transfers from the water column to the atmosphere. There are few methods to measure and distinguish the different forms of inorganic carbon, but all require a measure or an indirect quantification of total inorganic carbon. A direct measurement of TIC in water is made possible by the introduction of electrolytic generated hydroxide eluent in ion chromatography which allows to detect a chromatographic peak for carbonate. The advantage of this method is that all the inorganic forms of carbon are converted in carbonate at eluent pH and can be detected as a single peak by conductivity detection. Repeatability of carbonate peak was evaluated at different levels from 0.02 to 6 mequiv. l-1 both in high purity water and in real samples and ranged from 1 to 9%. The calibration curve was not linear and has to be fitted by a quadratic curve. Limit of detection was estimated to be 0.02 mequiv. l-1. Accuracy has been estimated by comparing ion chromatography method with total inorganic carbon calculated from alkalinity and pH. The correlation between the two methods was good (R2 = 0.978, n = 141). The IC method has been applied to different typologies of surface waters (alpine and subalpine lakes and rivers) characterised by different chemical characteristics (alkalinity from 0.05 to 2 mequiv. l-1 and pH from 6.7 to 8.5) and low total organic carbon concentrations. This analytical method allowed to describe the distribution of TIC along the water column of two Italian deep lakes. (literal)

Prodotto di

• Water research institute (IRSA) (Istituto)
• Macrocostituenti inorganici ed inquinanti organici emergenti nel ciclo idrologico in aree remote e densamente abitate (TA.P03.011.004) (Modulo)
• Impatto dei cambiamenti globali sugli ecosistemi acquatici (TA.P02.014.002) (Modulo)
• Istituto per lo studio degli ecosistemi (ISE) (Istituto)
• Tendenze evolutive della qualità dei corpi idrici superficiali e sotterranei: correlazione causa-effetto e caratterizzazione. (TA.P04.021.005) (Modulo)

Autore CNR

• PAOLA GIACOMOTTI (Persona)
• GABRIELE TARTARI (Persona)
• ROSARIO MOSELLO (Persona)
• STEFANO POLESELLO (Unità di personale interno)

Incoming links:

Prodotto

• Water research institute (IRSA) (Istituto)
• Istituto per lo studio degli ecosistemi (ISE) (Istituto)
• Impatto dei cambiamenti globali sugli ecosistemi acquatici (TA.P02.014.002) (Modulo)
• Tendenze evolutive della qualità dei corpi idrici superficiali e sotterranei: correlazione causa-effetto e caratterizzazione. (TA.P04.021.005) (Modulo)
• Macrocostituenti inorganici ed inquinanti organici emergenti nel ciclo idrologico in aree remote e densamente abitate (TA.P03.011.004) (Modulo)

Autore CNR di

• ROSARIO MOSELLO (Persona)
• GABRIELE TARTARI (Persona)
• PAOLA GIACOMOTTI (Persona)
• STEFANO POLESELLO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of chromatography (Rivista)