MICROEXTRACTION BY EXTRAGENT DISPERSION AND DROP CONCENTRATION COMPARISON FOR AROMATIC AND CHLORORGANIC COMPOUNDS DETERMINATION IN WATER
There was carried out a comparison between impurities concentration in extragent drop and a new modification of microextraction - concentration with reagent dispersion. Carbon tetrachloride was taken as an extragent. Microextraction with reagent dispersion was shown to be effective. Impurities was detected by GC-MS, lower detection limit was 0.6-6.0 ng/