Determination of Sodium and Potassium Oxides by Flame Photometry in Portland Cement Raw Materials and Mixtures and Similar Silicates

Abstract A method for the determination of serum sodium and potassium involving only a single serum dilution is described. Samples of 0.1 ml. of serum suffice for both determinations, but larger samples may also be used. By careful control of the lithium concentration and the dilution factor the mean relative photometric error may be held to no more than 1 per cent under normal circumstances of operation.

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Determination of urinary sodium and potassium by ion-selective electrodes and flame photometry compared.

Clinical Chemistry ◽

10.1093/clinchem/28.7.1710 ◽

1982 ◽

Vol 28 (7) ◽

pp. 1710-1711 ◽

Cited By ~ 5

Author(s):

R G Burr

Keyword(s):

Urinary Sodium ◽

Flame Photometry ◽

Ion Selective Electrodes ◽

Sodium And Potassium

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The automated determination of silicon and calcium in Portland cement and associated raw materials

The Analyst ◽

10.1039/an9719600213 ◽

1971 ◽

Vol 96 (1140) ◽

pp. 213

Author(s):

J. A. Fifield ◽

R. G. Blezard

Keyword(s):

Portland Cement ◽

Raw Materials ◽

Automated Determination

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Determination of the Content of Mineral Substances Applying Different Methods of Chemical Analysis

Quality of Life (Banja Luka) - APEIRON ◽

10.7251/qol1503088g ◽

2016 ◽

Vol 12 (3-4) ◽

Author(s):

Vesna Gojković ◽

Maja Šalić ◽

Vesna Antunović ◽

Goran Vučić ◽

Željka Marjanović-Balaban

Keyword(s):

Chemical Analysis ◽

Instrumental Analysis ◽

Flame Photometry ◽

Mineral Matter ◽

Three Samples ◽

Mineral Substances ◽

The Republic ◽

Sodium And Potassium ◽

Volumetric Methods

In the course of this study, we have determined the content of mineral matter of calcium, chlorides, sodium and potassium, by means of volumetric and instrumental analysis methods in infusion solutions. Infusion solutions that we used for analysis were purchased commercially in pharmacies in the Republic of Srpska. We have used volumetric methods, complexometry to determine calcium and Mohr method to determine chloride. Sodium and potassium were determined instrumentally, by flame photometry. Calcium was also determined by this method. The aim of the study was to demonstrate that the concentration of the aforementioned elements in infusion solutions corresponds to concentrations indicated on the label. Obtained results for content of sodium and chlorides do not deviate for more than allowed ±5%, in all three samples. Deviations occurred when content of calcium and potassium was determined by flame photometry.

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The Use of Flame Photometry For the Quantitative Determination of Sodium and Potassium in Plasma and Urine*

American Journal of Clinical Pathology ◽

10.1093/ajcp/19.5_ts.461 ◽

1949 ◽

Vol 19 (5_ts) ◽

pp. 461-470 ◽

Cited By ~ 58

Author(s):

Robert E. Mosher ◽

A. J. Boyle ◽

Edward J. Bird ◽

S. D. Jacobson ◽

Thomas M. Batchelor ◽

...

Keyword(s):

Quantitative Determination ◽

Flame Photometry ◽

Sodium And Potassium

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Simultaneous Determination of Sodium and Potassium in Small Volumes of Fluid by Flame Photometry

Journal of Experimental Biology ◽

10.1242/jeb.30.1.1 ◽

1953 ◽

Vol 30 (1) ◽

pp. 1-17

Author(s):

J. A. RAMSAY ◽

R. H. J. BROWN ◽

S. W. H. W. FALLOON

Keyword(s):

Standard Deviation ◽

Simultaneous Determination ◽

Biological Fluids ◽

Ammonium Phosphate ◽

Flame Photometry ◽

Limits Of Detection ◽

Other Substances ◽

Lower Limits ◽

Sodium And Potassium

1. A method of flame photometry is described, by which the amount of sodium and potassium in biological fluids can be determined simultaneously, using samples of the order of 10-3 cu.mm. 2. When the method is tested with quantities near the lower limits of detection (of the order 4 x 10-8 mg. sodium, 6 x 10-8 mg. potassium) the reproducibility, measured as standard deviation, is ±7 x 10-9 mg. sodium and ± 17 x 10-9 mg. potassium. 3. When larger quantities (up to certain limits) are used, the standard deviation is approximately ± 3 % of the quantity in the sample, both for sodium and for potassium. 4. As is usual in flame photometry serious errors can be caused by the presence of other substances in the sample. In the case studied for purposes of illustration it is shown that these interference errors can be reduced to the order of ± 6 % by the addition of excess ammonium phosphate.

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