Colorimetric Method for Semiquantitative Determination of Nitroorganics in Water
Authors:
- 1 September 1990
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 40 (1-4) , 69-76
Abstract
Very low concentrations of TNT, 2,4-DNT, HMX and RDX were determined in water. Dissolved explosives were concentrated from very diluted aqueous solutions by means of isothermal equilibrium adsorption on an adsorbent of a limited surface area which was, by a special process, given the form of a porous film. Using visualization reagents (o-tolidine and Griess reagent) visibly coloured surfaces were obtained which, by direct colorimetric measurements in diffusely reflected light, using a referent curve, can be applied for determination of unknown concentrations.Keywords
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