+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Estimating the zinc content of cheese using a Pulfrich photometer

, : Estimating the zinc content of cheese using a Pulfrich photometer. Vorratspfl. u. Lebensmittelforsch, 4: 1/2, 58-62

A dithizone extraction procedure described by Strohecker et al. was used. The ash from 3 g. of cheese was dissolved in 25 per cent. HC1 and the volume made up to 1 l.; 100 ml. of this solution was neutralized to litmus with ammonia and made acid with 2 per cent. HC1, and saturated sodium acetate solution was added till Congo-red paper no longer turned blue.


Other references

Mann, D.L., 1972: The effect of enzyme inhibitors on the solubilization of HL-A antigens with 3 M KCl. Transplantation 14(3): 398-401

Khalfa, S.; Micheyl, C.; Pham, E.; Maison, S.; Veuillet, E.; Collet, L., 2000: Tones disappear faster in the right ear than in the left. In order to gain further information on the characteristics and physiological correlates of tone decay in humans, the tone decay test was administered to 58 normal-hearing subjects, successively in the left and right ears and in absence and presen...

Belghiti, J.; Vilgrain, Vérie., 2005: Radiofrequency ablation of hepatocellular carcinoma: who should do it?. Annals of Surgical Oncology 12(8): 579-580

Lardenoye, C.W.; Probst, K.; DeLint, P.J.; Rothova, A., 2000: Photoreceptor function in eyes with macular edema. Purpose. The irreversible loss of visual acuity in macular edema is usually attributed to permanent loss of photoreceptor cells, although there is hardly any information on changes in photoreceptor function in macular edema. The purpose of this st...

Hattori, A., 1976: Laminectomy for spinal cord compression from metastatic tumor. Nihon Geka Hokan. Archiv für Japanische Chirurgie 45(2): 175-180

Dunlap Henry Francis; Bradley John Samuel; Moore Thomas Francis, 1959: Marine seep detection; a new reconnaissance exploration method. Oil and Gas Journal: 6, Pages 228. 1959.

Jackson, L.J.; Seaman, G.V., 1972: Physicochemical properties of some glycopeptides released from human erythrocyte membranes by trypsin. Biochemistry 11(1): 44-49

Kuhne, P., 1962: Total effects of coffee.. A review of recent literature emphasises that there is considerable uncertainty about the amounts of caffeine and other substances in coffee and about their effects, in particular those of furfurols and mercaptans, formed during roasting. Accordin...

Sarker, K.K.; Sardar, D.; Suwa, K.; Otsuki, J.; Sinha, C., 2007: Cadmium(II) complexes of (arylazo)imidazoles: synthesis, structure, photochromism, and density functional theory calculation. Reaction between CdX2 and 1-alkyl-2-(phenylazo)imidazole (RaaiR') has isolated complexes of composition Cd(RaaiR')2X2 in MeOH or MeCN. Crystallization of Cd(RaaiR')2I2 from N,N-dimethylformamide (DMF) has separated [Cd(RaaiR')I...

Carroll, C., 1985: Developments in the Dawson-Callide region. Non tillage crop production in northern NSW: proceedings of the project team meeting Tamworth-17-18 April 1985 edited by RJ Martin and WL Felton: 128