منابع مشابه
The 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 ...
متن کاملThe 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...
متن کاملContinuous-recording flame photometry of sodium and potassium in serum.
Serum sodium and potassium analyses by continuous-flow flame photometry is a well-accepted procedure (1, 2). Recently Habig and Williamson (3) have used the widely available Instrumentation Laboratory Model 143 (IL-143) flame photometer for continuousflow analyses. Pennacchia et al. (4) have operated this flame photometer at rates as high as 120 samples per hour. In both systems the results app...
متن کاملThe determination of serum bicarbonate by flame photometry.
At the present time, the applicability of the flame photometer to the clinical laboratory for determination of the cations sodium, potassium, and calcium in biological fluids has been demonstrated by numerous investigators (l-7). The determination of magnesium in blood serum and plasma by flame photometry has also been described (2, 8). However, analysis of physiologically significant anions in...
متن کاملSemimicro flame photometry of serum sodium and potassium.
BE PIONEER WORK of Lundegardh (1) established flame photometry as an analytical technic, but widespread interest was not aroused until 1945, when Barnes et al. (2) described a simple instrument which was much faster and at least as accurate as existing chemical methods for the determination of certain metals. A dormant clinical interest in the measurement of serum sodium and potassium was there...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1959
ISSN: 0021-9746
DOI: 10.1136/jcp.12.6.585-c