title: [Visual test evaluation of the results for the semiquantitative determination of cystine in urine using the nickel/dithionite (Ni2+/S2O42-) test].
abstract: The Ni2+/S2O4(2-)-test makes semiquantitative assessment of cystine concentration in urine possible. The reaction principle of the method is based on the formation of a nickel/cysteine/sulfide complex of brown colour. Visual test evaluation is done by classifying the colour intensity of the sample/reagent mixture according to an exact colour shade. Each colour shade on a colour reference table is correlated to a certain range of cystine concentration. Cystine determination is described in detail for two ranges (0.60 and 1.25 mmol/l).
authors.affiliation: Chirurgischen Abteilung, Kreiskrankenhauses Blankenhain.
authors.forename: O
authors.initials: O
authors.lastname: Kilian
authors.forename: W
authors.initials: W
authors.lastname: Berg
mesh_terms: D003116:Color; D003124:Colorimetry / Q000379:methods; D003555:Cystinuria / Q000652:urine*; D004227:Dithionite; D006801:Humans; D007202:Indicators and Reagents; D009532:Nickel
chemical_list: D007202:Indicators and Reagents; D004227:Dithionite; D009532:Nickel
vernacular_title: Visuelle Auswertung von Analyseergebnissen zur semiquantitativen Cystinbestimmung im Urin mit dem Nickel/Dithionit (Ni2+/S2O4(2-))-Test.