HIGH VOLTAGE APPARATUS FOR THE SEPARATION AND ISOLATION OF AMINO ACIDS, PEPTIDES, PROTEINS, NUCLEOTIDES, NUCLEOSIDES, PURINES, PYRIMIDINES, PHOSPHORIC ACID ESTERS, FATTY ACIDS, SUGAR COMPLEXES, STEROID DERIVATIVES, DINITROPHENOL AMINO ACIDS, AND INORGANIC IONS AND OTHER SUBSTANCES BY MEANS OF ELECTROPHORESIS