0170646 - UEK-B 20020012 RIV GB eng J - Journal Article
Šafařík, Ivo - Šafaříková, Miroslava
Detection of low concentration of malachite green and crystal violet in water.
Water Research. Roč. 36, - (2002), s. 196-200. ISSN 0043-1354. E-ISSN 1879-2448
R&D Projects: GA ČR GA203/98/1145
Institutional research plan: CEZ:AV0Z6087904
Keywords : magnetic particles * crystal violet
Subject RIV: EH - Ecology, Behaviour
Impact factor: 1.611, year: 2002

A simple procedure for the detection of low concentrations of malachite green and crystal violet in water is presented. The dyes were preconcentrated from 1000 ml of water samples with magnetic solid phase extraction using magnetic afinity adsorbent (magnetite with immobilized copper phthalocyanine dye). Due to the magnetic properties of the adsorbent the preconcentration process can also be performed in water samples containing suspended solids. After elution of the captured dyes, their presence in eluates was detected spectrophotometrically. Concentrations of both dyes in the range 0.5-1.0 microg/ml of water could be reproducibly detected. The dyes can be detected not only in potable water, but also in river ones.
Permanent Link: http://hdl.handle.net/11104/0067730