[Evaluation of the excretion of vanilmandelic acid using paper and cellulose acetate electrophoresis].

The authors compare the results of vanillylmandelic acid (VMA) excretion measurements by high-voltage electrophoresis on paper and by microelectrophoresis on cellulose acetate. Transverse scanning of electrophoregrams has been used for quantitative evaluation of the results of microelectrophoregrams on cellulose acetate. The results of VMA excretion measurements by the two methods have been in good correlation: r = 0.93, n = 15, y = 0.17 + 0.78x, p less than 0.01. Electrophoresis on cellulose acetate is three times less labor consuming and can be performed with Soviet equipment and maintenance medium. The excretion intensity can be assessed visually by reference values of VMA concentration.