scholarly journals THE DETERMINATION OF RADIOACTIVE IRON IN BIOLOGICAL MATERIAL WITH PARTICULAR REFERENCE TO PURIFICATION AND SEPARATION OF IRON WITH ISOPROPYL ETHER, ASHING AND ELECTROPLATING TECHNIQUE, AND ACCURACY OF THE METHOD

1948 ◽  
Vol 175 (1) ◽  
pp. 391-404 ◽  
Author(s):  
Gilbert J. Vosburgh ◽  
Louis B. Flexner ◽  
Dean B. Cowie
Keyword(s):  
Biological Material ◽  
Isopropyl Ether

Determination of platinum in biological material by differential pulse polarography: Analysis in urine, plasma and tissue following sample combustion

1983 ◽  
Vol 48 (10) ◽  
pp. 2903-2908 ◽  
Author(s):  
Viktor Vrabec ◽  
Oldřich Vrána ◽  
Vladimír Kleinwächter
Keyword(s):  
Biological Material ◽  
Biological Fluid ◽  
Mercury Electrode ◽  
Differential Pulse ◽  
Differential Pulse Polarography ◽  
Linear Calibration ◽  
Catalytic Current ◽  
Pulse Polarography ◽  
Dropping Mercury Electrode

A method is described for determining total platinum content in urine, blood plasma and tissues of patients or experimental animals receiving cis-dichlorodiamineplatinum(II). The method is based on drying and combustion of the biological material in a muffle furnace. The product of the combustion is dissolved successively in aqua regia, hydrochloric acid and ethylenediamine. The resulting platinum-ethylenediamine complex yields a catalytic current at a dropping mercury electrode allowing to determine platinum by differential pulse polarography. Platinum levels of c. 50-1 000 ng per ml of the biological fluid or per 0.5 g of a tissue can readily be analyzed with a linear calibration.

scholarly journals THE DETERMINATION OF IODINE IN BIOLOGICAL MATERIAL

1935 ◽  
Vol 110 (1) ◽  
pp. 29-38
Author(s):  
Virginia Trevorrow ◽  
Gladys J. Fashena
Keyword(s):  
Biological Material
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