Determination of trace cadmium by dithizone photometry
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چکیده
منابع مشابه
Synthesis and application of amberlite XAD-2 functionalized with dithizone for field preconcentration and separation of trace cadmium in seawater.
A chelating resin coupling Amberlite XAD-2 functionalized with dithizone is synthesized and characterized. Dissolved cadmium is field-preconcentrated using a minicolumn packed with the synthesized resin and determined by flame atomic absorption spectrometry. Five experimental variables are evaluated. The enrichment factor of 416 is obtained for 50 mL of sampling volume, and the detection limit ...
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a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...
The determination of calcium in biological fluids by flame photometry.
The use of flame photometers has greatly simplified and expedited the estimation of sodium and potassium. Calcium is one of the elements which it is possible to determine by flame photometry, but little advantage has been taken of this fact in biological work for a number of reasons. The concentration of calcium in extracellular fluids is usually less than that of potassium ; a given quantity o...
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To the Editor: 1. Millan A, Conte A, Garcia-Ease A, Grases F. Determination of citrate in urine by simple direct photometry [Tech Briefi. Clin Chem 1987;33:1259-60. 2. Ogawa Y, Morozumi M, Tanaka T, Yamaguchi K. Determination of urinary citrate by ion chromatography. J Urol 1986;135:178-81. 3. Kok DJ, Papapoulos SE, Bijvoet OLM. Excessive crystal agglomeration with low citrate excretion in recu...
متن کاملThe determination of magnesium in biological materials by flame photometry.
A method is described for the measurement of magnesium in biological materials and has been applied to the Unicam flame spectrophotometer SP 900. Samples were diluted in 10 mM strontium ethylenedinitrolo tetraacetate (EDTASr), 10 mM potassium carbonate, giving final magnesium concentrations of about 0.1 to 0.2 mM. The EDTASr almost eliminated the depression of magnesium emission by interfering ...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1961
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.10.817