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Determination of Zinc in Pig Blood

Bestimmung des Zinkhaltes in Schweineblut

Bestämning av zinkhalten i helblod från gris

Summary

A rapid spectrochemical method for determining zinc in 1 ml. portions of pig blood is described. Blood ash is dissolved in HNO3 and excited in a high voltage spark, using graphite capillary electrodes. Spectra are recorded on Kodak SWR or B-10 plates and the analysis (internal standard line pair Zn 2138/Cd 2288) is densitometered.

Some results for young pigs fed on both wet and dry diet show a period of low blood zinc about 13 weeks after birth, coinciding with maximum susceptibility to swine parakeratosis.

Zusammenfassung

Der Zinkhalt im Blut ist mit einer spektrochemischen Methode bestimmt worden. Kleine Mengen Blut — 1 ml — wurden verwendet. Das eingeäscherte Blut wird in HNO3 gelöst mit dem Zusats von Kadmium als Referenz. Die Spektralaufnahme geschieht im Hochspannungsfunken und Spektra werden auf Kodak B-10 Platten registriert. Standardproben werden auf jeder Platte aufgenommen. Die Analyse wird photometriert.

Untersuchungen über den Blutzinkhalt bei Schweinen in einem begrenzten Material von eiweissreicher und eiweissarmer Kost sind beschrieben.

Sammanfattning

Zinkhalten i blod har bestämts med en spektrokemisk metod. Små volymer blod — 1 ml. — har använts. Det inaskade blodet löses i HNO3 med tillsats av kadmium som referens. Spektralupptagningen sker i högspänningsgnista och spektra registreras på Kodak B-10 plåtar. Standardprov upptages på varje plåt. Analysen fotometreras.

Undersökningar över blodzinkhalten hos grisar i ett begränsat material på äggviterik och äggvitefattig utfodring redovisas.

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Månsson, I., Askling, M. & Manheim, F. Determination of Zinc in Pig Blood. Acta Vet Scand 5, 7–16 (1964). https://doi.org/10.1186/BF03547360

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