[Non-flame atomic absorption method of the analysis of mercury-containing biological materials]. / Neplamennyi atomno-absorbtsionnyi metod v analize rtut'soderzhashchikh biomaterialov.

Julia-2 mercury analyzer is modified. Gasodynamic scheme of the device is altered: water vapors can no longer enter the cuvette, the circulation mode is realized. Equilibrium concentration of mercury vapors is thus attained. The analytical signal is well reproduced. Alteration of the reactor volume improves the sensitivity of testing larger samples.

[Potentiometric determination of halide ions in blood]. / Potentsiometricheskoe opredelenie galogenid-ionov v krovi.

The authors have studied the possibility of using ion-selective electrodes Kritus (Czecho-Slovakia) for analysis of whole blood and serum without preliminary labor-consuming sample preparation. Chloride ions were found to be detectable in the blood serum by potentiometric titration with Ag nitrate solution making use of a pAg-CE-pF-CE pair in ethanol, acetone, or acetic acid medium. Active concentrations of whole blood and serum bromide- and iodide ions may be measured by direct potentiometry with pBr-CE-pF-CE and pI-CE-pF-CE pairs, respectively, against the background of 1 M potassium (or sodium) nitrate solution providing the constancy of solution ionic strength.