Ueber die quantitative Bestimmung des Sarkins und Xanthins im Muskelfleisch

Abstract

Neubauer: Ueber die qllant. Be~t. des Sarkins-etc. im hl;uskelfleisch. 33' s~iure hat mir diese Methede immer bessere Resultate gegeben, wie diejenige, die auf der Reduction der Chlors~ture" dureh Zink in saurer LSsung beruht. Salpeters~ure, auf dieselbe Weise behandelt, oxydirt alas Eisenoxydul ebenfalls, abet bei weitem nieht so energisch wie: Chlorsiiure. Aueh zur Bestimmung des gesammten Chlorgehaltes in unterchlorigsauren Salzen ist diese Methode leicht anwendbar. Mittheilunge n aus dem chemischen Laboratorium des Prof. Dr. R. Fresenins zu Wiesbaden. Ueber die quantitative Bestimmung des Sarkins und Xanthins im Muskelfleisch. Yon C. Neubauer.

On the Mechanism of Overproduction of Uric Acid in Patients With Primary Gout1

“…Uric acid analyses on urine and serum were performed by differential spectrophotometry (14,15) 0.~Cl lected for subsequent recrystallization (8,18) and C' analysis. The filtrate, containing the urinary purine bases as soluble hydrochlorides, was then treated with ammoniacal silver nitrate and stored in the cold (19 After passage through the quartz cell of the absorption meter, the eluate was collected in 24 ml. fractions.…”

Nucleic Acids. Their Chemical Properties and Physiological Conduct

“…In general an analytical scheme specially adapted to a particular problem is constructed from the following general propositions : -1. All five of the purines are precipitated from dilute protein-free solutions by silver nitrate and ammonia in the cold (Neubauer [1867] and Schmid [1905]).…”

Nucleic Acids, Their Chemical Properties and Physiological Conduct.

“…1. All five of the purines are precipitated from dilute protein-free solutions by silver nitrate and ammonia in the cold(Neubauer [1867]) or by copper sulphate and sodium bisulphite at the boiling-point (Kriiger[1894], Kriiger and Wulff[1895], Kriiger and Schmid[1905]). 87 2.…”