Time filter

Source Type

Juszczyk D.,Laboratorium Analiz Wod i Sciekow | Bebek M.,Laboratorium Analiz Wod i Sciekow | Mitko K.,Laboratorium Analiz Wod i Sciekow
Przeglad Geologiczny | Year: 2010

The increasing use of industrially produced synthetic organohalogen (mainly chlorine) compounds has led to serious adverse effects. DDT and its metabolites as well as many other pesticides and polychlorinated biphenyls (PCB) may serve here as the best examples. The parameter called AOX was introduced as an alternative to individual determination of each of these compounds. AOX is the abbreviation of the sum parameter for water soluble, on-coal adsorbable organically bound halogens -chlorine, bromine and iodine. In the study conducted by the authors, determinations of the validation of AOX determination in water and wastewater were validated using column procedure and microcoulometry with the titration module and in accordance with the National Normative Aspects PN-EN ISO 9562 of June 2007. The studies made it possible to estimate the limit of determination, precision, accuracy, correctness and standard recoveries. The tests covered industrial wastewaters, municipal sewage and paper mill wastewaters. The multiX 2000 AOX analyzer and two-channel injection pump AP-2P were used in these analyses.


Kostka B.,Laboratorium Analiz Wod i Sciekow | Bebek M.,Laboratorium Analiz Wod i Sciekow | Mitko K.,Laboratorium Analiz Wod i Sciekow
Przeglad Geologiczny | Year: 2010

The use of ion Chromatograph ICS-2500 (Dionex, USA) with suppressed conductivity detection and gradient elution for direct determination of bromate in drinking water in presence of chlorite and chlorate is described. In this method, bromate is separated using Dionex Ion Pac AS 19 separation column along with a Dionex Ion Pac AG19 guard column and generated KOH eluent. Standard solution with certified bromate content and real samples were used in validation process of the method. The method has been proved to be very useful for routine analysis of drinking water because of low limit of detection (0,002 mg/l), good precision (CV < 10%), correctness (relative error < 15%), satisfactory results of interlaboratory comparisons (relative error ≤ 12,5%) as well as possibilities of carrying out simultaneous determination of other inorganic oxyhalide disinfection by-products.

Loading Laboratorium Analiz Wod i Sciekow collaborators
Loading Laboratorium Analiz Wod i Sciekow collaborators