Trace determination of uranium in biological material by fission track counting

1970 ◽  
Vol 42 (1) ◽  
pp. 121-123 ◽  
Author(s):  
B. Stephen. Carpenter ◽  
Conrad H. Cheek
Keyword(s):  
Biological Material ◽  
Fission Track ◽  
Trace Determination ◽  
Track Counting

Trace determination of uranium in silicon by fission track method

1979 ◽  
Vol 3 (1-2) ◽  
pp. 85-88 ◽  
Author(s):  
S.K. Chakarvarti ◽  
K.K. Nagpaul
Keyword(s):  
Fission Track ◽  
Trace Determination ◽  
Track Method

Simultaneous Spectrophotometric Determination of Salbutamol by Coupling with Diazotized 4-Aminobenzoic acid

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Hind Hadi ◽  
Gufran Salim
Keyword(s):  
Pharmaceutical Preparations ◽  
Coupling Reaction ◽  
Dosage Forms ◽  
Water Soluble ◽  
Trace Determination ◽  
Aminobenzoic Acid ◽  
Optimum Conditions ◽  
Colored Product ◽  
Versus Concentration

A simple, rapid and sensitive spectrophotmetric method for trace determination of salbutamol (SAL) in aqueous solution and in pharmaceutical preparations is described. The method is based on the diazotization coupling reaction of the intended compound with 4-amino benzoic acid (ABA) in alkaline medium to form an intense orange, water soluble dye that is stable and shows maximum absorption at 410 nm. A graph of absorbance versus concentration indicates that Beer’s law is obeyed over the concentration range of 0.5-30 ppm, with a molar absorbtivity 3.76×104 L.mol-1 .cm-1 depending on the concentration of SAL. The optimum conditions and stability of the colored product have been investigated and the method was applied successfully to the determination of SAL in dosage forms.

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.

Pitfalls and Solutions for the Trace Determination of Phthalates in Water Samples

2005 ◽  
Vol 61 (7-8) ◽  
pp. 365-370 ◽  
Author(s):  
Bart Tienpont ◽  
Frank David ◽  
Eric Dewulf ◽  
Pat Sandra
Keyword(s):  
Water Samples ◽  
Trace Determination

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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