Abtrennung und selektive Molybdänbestimmung mit Natriumthiosulfat und Ethylacetat L. HainbergerW. de Oliveira Andrade OriginalPaper Pages: 1 - 4
Empfindliche Bestimmung von Jodid in Gegenwart größerer Mengen Chlorid L. HainbergerE. Lenzi OriginalPaper Pages: 5 - 8
Über das koordinationschemische Verhalten 2-substituierter Benzimidazole. I H. GreschonigE. Gagliardi OriginalPaper Pages: 9 - 20
Cacotheline as an oxidimetric reagent. Determination of Sn(II), Cu(I), Ti(III), Fe(II), V(II) and V(III) K. Nemani MurtyP. Yedluri RaoK. Geddada Chalam OriginalPaper Pages: 21 - 28
Elektrochemische Oxydation von Flavonoiden an einer glasartigen Kohlenstoffelektrode Karl KralGerhard Sontag OriginalPaper Pages: 29 - 41
Microdetermination of steroid and triterpene saponin glycosides in various plant materials I. Allium species Maria Aleksandra SmoczkiewiczDanuta NitschkeHanna Wielądek OriginalPaper Pages: 43 - 53
Some aspects of the evaluation of environmental reference samples-A look at the material homogeneity and statistical approaches for collaborative tests Gerhard Frauerwieser OriginalPaper Pages: 55 - 66
Spectrophotometric determination of microgram amounts of chromium(VI) and total chromium in waste water Wei Fu-shengZhu Yu-ruiShen Nai-kui OriginalPaper Pages: 67 - 75
Solvent extraction of mercury using Alamine 304 Curtis McDonaldGholam Hossein Pahlavan OriginalPaper Pages: 77 - 82
Flotations-spektrophotometrische Methode zur Bestimmung von Zirkonium mittels Eriochromazurol B Z. GregorowiczP. GórkaJ. Cebula OriginalPaper Pages: 83 - 88
Micro liquid chromatographic trace analysis for insecticide phosphoric esters in body fluids H. WollmannH. BauerW. Voelter OriginalPaper Pages: 89 - 94
Simultaneous microdetermination of sulphur, carbon and nitrogen by reaction gas chromatography Vlastimil RezlAlena Burešová OriginalPaper Pages: 95 - 105
Limitations of reaction frontal gas chromatography in organic elemental analysis Vlastimil Rezl OriginalPaper Pages: 107 - 114
Spectrophotometric determination of iron with 1,10-phenanthroline in the presence of copper Zhenpu WangK. L. Cheng OriginalPaper Pages: 115 - 124
The liquid-liquid extraction of nickel(ii) and cobalt(ii) with chlorendic acid Selman A. Berger OriginalPaper Pages: 125 - 132
Quantitative chemical microdetermination of beryllium with chrome azurol by the ring-oven technique Niels B. Hansen OriginalPaper Pages: 133 - 139
Potentiometric microdetermination of catechol in the presence of its isomers using a lead-ion selective electrode Walter Selig OriginalPaper Pages: 141 - 147
A kinetic method for the determination of nanogram amounts of cadmium (II) by its catalytic effect on the complex formation of manganese(II) withα,β,γ,δ-tetra-(p-sulf onatophenyl) porphine Masaaki TabataMotoharu Tanaka OriginalPaper Pages: 149 - 158