caa a22 4500 467996253 CHVBK 20180323112558.0 cr unu---uuuuu 170328e19900101xx s 000 0 eng 10.1007/BF01244493 doi (NATIONALLICENCE)springer-10.1007/BF01244493 A new ionic strength adjustor for nitrate analysis in waters, soils and plants using ion-selective electrode [Elektronische Daten] [Manassis Mitrakas, Constantinos Alexiades] A new ionic strength adjustor, ISA (ISA-Pb) composed of 0.02M Pb(CH3COO)2−0.01M PbO−0.02M CH3COOK−0.01M NH2SO3H, was tested for the rapid nitrate analysis of waters, soil and plant extracts by means of ion-selective electrode (ISE). It was found that nitrate can be determined accurately and precisely within the concentration range of 5 × 10−2 M to 2 × 10−6 M. The proposed ISA-Pb, with a pH of 6.8, controlled the interferences of Cl−, HCO 3 − , NO 2 − , and organic anions effectively, and gave results comparable to those obtained by the commonly used ISA with Ag2SO4 (ISA-Ag) and to well established chemical methods as well. ISA-Pb is much cheaper than ISA-Ag, and can therefore economically replace the latter when ISE is used for nitrate determination. Springer-Verlag, 1990 ion-selective electrodes nationallicence nitrate determination nationallicence ISA with lead acetate-lead oxide nationallicence Mitrakas Manassis Laboratory of Analytical Chemistry, Department of Chemical Engineering, Polytechnic School, Aristotelian University of Thessaloniki, 54006, Thessaloniki, Greece aut Alexiades Constantinos Laboratory of Analytical Chemistry, Department of Chemical Engineering, Polytechnic School, Aristotelian University of Thessaloniki, 54006, Thessaloniki, Greece aut Microchimica Acta Springer-Verlag 100/1-2(1990-01-01), 7-16 0026-3672 100:1-2<7 1990 100 604 https://doi.org/10.1007/BF01244493 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01244493 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mitrakas Manassis Laboratory of Analytical Chemistry, Department of Chemical Engineering, Polytechnic School, Aristotelian University of Thessaloniki, 54006, Thessaloniki, Greece aut NATIONALLICENCE 700 1- Alexiades Constantinos Laboratory of Analytical Chemistry, Department of Chemical Engineering, Polytechnic School, Aristotelian University of Thessaloniki, 54006, Thessaloniki, Greece aut NATIONALLICENCE 773 0- Microchimica Acta Springer-Verlag 100/1-2(1990-01-01), 7-16 0026-3672 100:1-2<7 1990 100 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer