Lp. Eksperiandova et al., Determination of anions after their concentration by directed crystallization of natural water, J TR MICROP, 19(1), 2001, pp. 71-77
Low-temperature directed crystallization of natural water earlier applied b
y us for analytical concentration of cationic and organic impurities, may b
e used also for the concentration of anions. The distribution coefficients
of various impurities in distilled water, irrespective of their nature, wer
e found to be close to zero. In natural water these values are nonzero and
depend on the degree of mineralization of the analyzed water. The use of ou
r concentration method allows to decrease the detection limit in the determ
ination of anionic impurities by a factor of 40 to 100.