Determination of low levels of sodium in water by using a sodium-ion responsive glass electrode

The Analyst ◽  
1968 ◽  
Vol 93 (1104) ◽  
pp. 158 ◽  
Author(s):  
D. Hawthorn ◽  
N. J. Ray
Keyword(s):  
Glass Electrode ◽  
Sodium Ion ◽  
Low Levels

The determination of salt in bacon by using a sodium-ion responsive glass electrode

The Analyst ◽  
1966 ◽  
Vol 91 (1089) ◽  
pp. 802 ◽  
Author(s):  
J. H. Halliday ◽  
F. W. Wood
Keyword(s):  
Glass Electrode ◽  
Sodium Ion

Determination of Sodium in Urine by Specific Ion Electrode

1967 ◽  
Vol 13 (3) ◽  
pp. 227-232 ◽  
Author(s):  
Joseph S Annino
Keyword(s):  
Excellent Agreement ◽  
Reference Electrode ◽  
Sodium Concentration ◽  
Glass Electrode ◽  
Sodium Ion ◽  
Flame Photometry ◽  
Standard Curve ◽  
Sodium Activity ◽  
Ion Activity

Abstract A method has been developed for determination of sodium concentration (activity) in urine using a glass electrode designed to be especially sensitive to sodium ion activity. The urine is diluted 2:20 with Tris buffer (pH 8.0) and sodium activity measured by dipping a sodium electrode and calomel reference electrode in the diluted specimen and obtaining a millivolt reading with a sensitive pH meter. The sodium concentration is then calculated from a predetermined standard curve. Concentrations of 0-200 mEq./L. may be read using the same dilution. Blind comparisons of sodium concentrations obtained by flame photometry and by sodium ion electrode showed excellent agreement.

Spectrophotometric Determination of Raceophenidol in Feed at Very Low Levels

1968 ◽  
Vol 51 (4) ◽  
pp. 752-755
Author(s):  
Edward L Pratt ◽  
Morris E Auerbach
Keyword(s):  
Spectrophotometric Determination ◽  
Growth Promotion ◽  
Ultraviolet Spectrum ◽  
Average Value ◽  
Collaborative Studies ◽  
Low Levels ◽  
Concentration Levels

Abstract Raceophenidol in feed at concentration levels intended for growth promotion of poultry can be estimated by a curvature inversion measurement related to the ultraviolet spectrum of derived p-methylsulfonylbenzaldehyde. The drug can be accurately measured at the 0.0005% level. Collaborative studies on the method showed an average value of 94 ± 10% of claim. The method is recommended for adoption as official, first action.

scholarly journals The Determination of Gastric Acidity by the Glass Electrode

1965 ◽  
Vol 49 (2) ◽  
pp. 178-188 ◽  
Author(s):  
Edward W. Moore ◽  
Robert W. Scarlata
Keyword(s):  
Gastric Acidity ◽  
Glass Electrode

Determination of low levels of bromide in fresh water after chromatographic enrichment

Talanta ◽  
1984 ◽  
Vol 31 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Ulla Lundström ◽  
Åke Olin ◽  
Folke Nydahl
Keyword(s):  
Fresh Water ◽  
Low Levels
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