BEHAVIOUR OF ION SELECTIVE ELECTRODES BASED ON SILVER OR MERCURIC SULFIDE, SELENIDE AND TELLURIDE MATRICES.SEKERKA I; LECHNER JF.1976; ANAL. LETTERS; U.S.A.; DA. 1976; VOL. 9; NO 12; PP. 1099-1110; BIBL. 13 REF.Article

AUTOMATED SIMULTANEOUS DETERMINATION OF WATER HARDNESS, SPECIFIC CONDUCTANCE AND PHSEKERKA I; LECHNER JF.1974; ANAL. LETTERS; U.S.A.; DA. 1974; VOL. 7; NO 6; PP. 399-408; BIBL. 19 REF.Article

DETERMINATION OF SULFITE AND SULFUR DIOXIDE BY ZEROCURRENT CHRONOPOTENTIOMETRY.SEKERKA I; LECHNER JF.1978; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1978; VOL. 99; NO 1; PP. 99-104; BIBL. 9 REF.Article

SIMULTANEOUS DETERMINATION OF TOTAL NON-CARBONATE AND CARBONATE WATER HARDNESSES BY DIRECT POTENTIOMETRYSEKERKA I; LECHNER JF.1975; TALANTA; G.B.; DA. 1975; VOL. 22; NO 4-5; PP. 459-463; ABS. FR. ALLEM.; BIBL. 15 REF.Article

AUTOMATION OF DIRECT POTENTIOMETRYSEKERKA I; LECHNER J.1973; INTERNATION. J. ENVIRONMENT. ANAL. CHEM.; G.B.; DA. 1973; VOL. 2; NO 4; PP. 313-322; BIBL. 15 REF.Serial Issue

POTENTIOMETRIC DETERMINATION OF ORGANOHALIDES IN NATURAL WATER USING TENAX ADSORPTION AND COMBUSTIONSEKERKA I; LECHNER JF.1982; INT. J. ENVIRON. ANAL. CHEM.; ISSN 0306-7319; GBR; DA. 1982; VOL. 11; NO 1; PP. 43-52; BIBL. 31 REF.Article

POLYCRYSTALLINE ION-SELECTIVE ELECTRODE BASED ON AG₂(HGI₄)-AG₂SSEKERKA I; LECHNER JF.1981; ANALYST (LOND.); ISSN 0003-2654; GBR; DA. 1981; VOL. 106; NO 1260; PP. 323-327; BIBL. 15 REF.Article

A NEW ZERO-CURRENT CHRONOPOTENTIOMETRIC TECHNIQUE WITH ION-SELECTIVE ELECTRODES.SEKERKA I; LECHNER JF.1977; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1977; VOL. 93; NO 1; PP. 129-137; BIBL. 20 REF.Article

CHLORIDE ION-SELECTIVE ELECTRODE BASED ON HGS/HG₂CL₂LECHNER JF; SEKERKA I.1974; J. ELECTROANAL. CHEM. INTERFACIAL ELECTROCHEM.; NETHERL.; DA. 1974; VOL. 57; NO 3; PP. 317-323; BIBL. 19 REF.Article

SIMULTANEOUS DETERMINATION OF SODIUM, POTASSIUM, AND AMMONIUM BY AUTOMATED DIRECT POTENTIOMETRYSEKERKA I; LECHNER JF.1974; ANAL. LETTERS; U.S.A.; DA. 1974; VOL. 7; NO 7; PP. 463-472; BIBL. 19 REF.Article

POTENTIOMETRIC DETERMINATION OF NITRILOTRIACETATE IN WATER AND SEWAGESEKERKA I; LECHNER J; AFGHAN BK et al.1973; ANAL. LETTERS; U.S.A.; DA. 1973; VOL. 11; NO 6; PP. 977-983; BIBL. 21 REF.Article

DETERMINATION OF CHLORIDE IN WATER WITH A HGS/HG2CL₂ ELECTRODESEKERKA I; LECHNER JF; WALES R et al.1975; WAT. RES.; G.B.; DA. 1975; VOL. 9; NO 7; PP. 663-665; BIBL. 13 REF.Article

Automated method for the determination of boron in water by flow-injection analysis with in-line preconcentration and spectrophotometric detectionSEKERKA, I; LECHNER, J. F.Analytica chimica acta. 1990, Vol 234, Num 1, pp 199-206, issn 0003-2670, 8 p.Conference Paper

Quantum chemical study of phenylcarbamates possessing local anaesthetic activity. Effect of hydration on stable conformations of 1-[2-(2-methoxyphenylcarbamoyloxy) ethyl] piperidine and its cationREMKO, M; SEKERKA, I.Collection of Czechoslovak chemical communications. 1987, Vol 52, Num 8, pp 1879-1887, issn 0010-0765Article

Direct determination of dissolved and total thallium in lake waters by laser-excited atomic fluorescence spectrometryCHEAM, V; CHEAM, V; CHEAM, V; CHEAM, V; LECHNER, J et al.International journal of environmental analytical chemistry. 1996, Vol 63, Num 2, pp 153-166, issn 0306-7319, 13 p.Article

Development of a laser-excited atomic fluorescence spectrometer and a method for the direct determination of lead in Great Lakes watersCHEAM, V; LECHNER, J; SEKERKA, I et al.Analytica chimica acta. 1992, Vol 269, Num 1, pp 129-136, issn 0003-2670Article

Application of laser-excited atomic fluorescence spectrometer to study lead distribution in great lakes watersCHEAM, V; LECHNER, J; DESROSIERS, R et al.International journal of environmental analytical chemistry. 1993, Vol 53, Num 1, pp 13-28, issn 0306-7319Article