Open AccessSolid-Phase Reagents on the Modified Silica Gel Base for the Rapid Determination of Nickel(II) Ions
Author(s) -
Т. И. Маслакова,
И. Г. Первова
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/666/3/032080
Subject(s) - reagent , sorbent , nickel , metal ions in aqueous solution , chemistry , alkali metal , ion , silica gel , phase (matter) , solid phase extraction , inorganic chemistry , base (topology) , nuclear chemistry , chromatography , extraction (chemistry) , organic chemistry , adsorption , mathematical analysis , mathematics
The new solid-phase reagent is synthesized by previous modifying the surface of silica gel with l-(4-sulfophenyl)-3-methyl-5-(benzoxazol-2-yl)formazan for Ni(II) ions determination in water. The high effective colour change (Δλ = 200 nm) is observed due to complex-formation reaction reagent with nickel (II) ions. Increasing toxicant concentration is accompanied by growth the colour intensity of the solid-phase sorbent, which form the basis of colour scale development for the Ni(II) ions determination in the range 10-100 mkg/ml. Ni(II) ions determination can’t be disturbed by the presence of Co(II) ions, alkali or alkali-earth metal ions. Proposed technique is high rapid (its max duration is 2-3 min), ordinary (it is required neither expensive equipment nor qualified staff to use the technique) and ecological friendly.