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Luminometric Label Array for Quantification and Identification of Metal Ions

Sari Pihlasalo, Ileana M. Perez, Niklas Hollo, Elina Hokkanen, Tapio Pahikkala, Harri Härmä, Luminometric Label Array for Quantification and Identification of Metal Ions. Analytical chemistry 88(10), 5271–5280, 2016.

http://dx.doi.org/10.1021/acs.analchem.6b00453

Abstract:

Quantification and identification of metal ions has gained interest in drinking water and environmental analyses. We have developed a novel label array method for the quantification and identification of metal ions in drinking water. This simple ready-to-go method is based on the nonspecific interactions of multiple unstable lanthanide chelates and nonantenna ligands with sample leading to a luminescence signal profile, unique to the sample components. The limit of detection at ppb concentration level and average coefficient of variation of 10% were achieved with the developed label array. The identification of 15 different metal ions including different oxidation states Cr3+/Cr6+, Cu+/Cu2+, Fe2+/Fe3+, and Pb2+/Pb4+ was demonstrated. Moreover, a binary mixture of Cu2+ and Fe3+ and ternary mixture of Cd2+, Ni2+, and Pb2+ were measured and individual ions were distinguished.

BibTeX entry:

@ARTICLE{uconv16989530,
  title = {Luminometric Label Array for Quantification and Identification of Metal Ions},
  author = {Pihlasalo, Sari and Perez, Ileana M. and Hollo, Niklas and Hokkanen, Elina and Pahikkala, Tapio and Härmä, Harri},
  journal = {Analytical chemistry},
  volume = {88},
  number = {10},
  publisher = {AMER CHEMICAL SOC},
  pages = {5271–5280},
  year = {2016},
  ISSN = {0003-2700},
}

Belongs to TUCS Research Unit(s): Algorithmics and Computational Intelligence Group (ACI)

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