skip to main content

Cadmium determination in natural waters at the limit imposed by European legislation by isotope dilution and TiO2 solid-phase extraction

García-Ruiz, Silvia ; Petrov, Ivan ; Vassileva, Emilia ; Quétel, Christophe R

Analytical and bioanalytical chemistry, November 2011, Vol.401(9), pp.2785-92 [Peer Reviewed Journal]

Full text available

Citations Cited by
  • Title:
    Cadmium determination in natural waters at the limit imposed by European legislation by isotope dilution and TiO2 solid-phase extraction
  • Author: García-Ruiz, Silvia ; Petrov, Ivan ; Vassileva, Emilia ; Quétel, Christophe R
  • Is Part Of: Analytical and bioanalytical chemistry, November 2011, Vol.401(9), pp.2785-92
  • Description: The cadmium content in surface water is regulated by the last European Water Framework Directive to a maximum between 0.08 and 0.25 μg L(-1) depending on the water type and hardness. Direct measurement of cadmium at this low level is not straightforward in real samples, and we hereby propose a validated method capable of addressing cadmium content below μg L(-1) level in natural water. It is based on solid-phase extraction using TiO(2) nanoparticles as solid sorbent (0.05 g packed in mini-columns) to allow the separation and preconcentration of cadmium from the sample, combined to direct isotope dilution and detection by inductively coupled plasma mass spectrometry (ID-ICP-MS). The extraction setup is miniaturised and semi-automated to reduce risks of sample contamination and improve reproducibility. Procedural blanks for the whole measurement process were 5.3 ± 2.8 ng kg(-1) (1 s) for 50 g of ultrapure water preconcentrated ten times. Experimental conditions influencing the separation...
  • Language: English
  • Identifier: E-ISSN: 1618-2650 ; PMID: 21858497 Version:1 ; DOI: 10.1007/s00216-011-5256-0
  • Source: MEDLINE/PubMed (U.S. National Library of Medicine)

Searching Remote Databases, Please Wait