Determination of boron in waters: Method for direct titration of boric acid

1932 ◽  
Vol 4 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Fred J. Foote
Keyword(s):  
Boric Acid ◽  
Direct Titration

Adaptation of the AOAC Fluorine Method for Determining Fluoride in Fish Protein Concentrate

1970 ◽  
Vol 53 (1) ◽  
pp. 3-6
Author(s):  
R. Bruce Klemm ◽  
Mary E. Ambrose Klemm
Keyword(s):  
Steam Distillation ◽  
Silica Sand ◽  
Official Method ◽  
Protein Concentrate ◽  
Fish Protein ◽  
Direct Titration ◽  
Modified Method ◽  
Aoac Official ◽  
Aoac Official Method

Abstract The AOAC official method, 24.029–24.035, for the determination of fluorine in foods was modified slightly to o btain quantitative recoveries of fluorine from samples of fish protein concentrate (FPC). The most important alterations include the use of steam distillation, the addition of finely ground silica sand in the distillation, a decrease in the distillation temperature, and the utilization of direct titration. Recoveries of fluoride added to FPC before ashing, using this modified method, averaged 96.0 ± 3.0%. Our results are in agreement with those of several other analysts who used a variety of methods.

Determination of Relationship between Chemical Composition of Electrolyte and Surface Sample Quality

2015 ◽  
Vol 669 ◽  
pp. 150-157
Author(s):  
Peter Michal ◽  
Alena Vagaská ◽  
Miroslav Gombár
Keyword(s):  
Sodium Chloride ◽  
Chemical Composition ◽  
Oxalic Acid ◽  
Boric Acid ◽  
Oxide Layer ◽  
Surface Finish ◽  
Chemical Factors ◽  
Substrate Sample

Paper tracks experimentally confirmed relationship between chemical composition of electrolyte and resulting surface finish quality of created oxide layer during the process of anodic oxidation of aluminium. Examined chemical factors were: concentrations of sulphuric acid, oxalic acid, boric acid and sodium chloride. Aggressive effects of electrolyte were chosen as indicator of resulting layer quality – presence and extent of etching of used substrate sample.

Quantitative determination of acidic groups in functionalized graphene by direct titration

2016 ◽  
Vol 103 ◽  
pp. 44-53 ◽  
Author(s):  
Jakub Ederer ◽  
Pavel Janoš ◽  
Petra Ecorchard ◽  
Václav Štengl ◽  
Zuzana Bělčická ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Functionalized Graphene ◽  
Direct Titration

scholarly journals Determination of the physicochemical properties of boric acid for VVER emergency modes

2020 ◽  
Vol 791 ◽  
pp. 012016
Author(s):  
A V Morozov ◽  
A R Sahipgareev ◽  
A S Shlepkin ◽  
A S Soshkina
Keyword(s):  
Physicochemical Properties ◽  
Boric Acid

Analysis of Sodium Diphenylhydantoin and Phenobarbital Combinations by Nonaqueous Titration

1968 ◽  
Vol 51 (5) ◽  
pp. 1013-1016
Author(s):  
Sura J P Agarwal ◽  
Martin I Blake
Keyword(s):  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Ammonium Hydroxide ◽  
Butyl Alcohol ◽  
Dosage Forms ◽  
Direct Titration ◽  
Titration Procedure ◽  
Tert Butyl Alcohol ◽  
Preliminary Separation

Abstract A simple, nonaqueous titration procedure is described for the determination of sodium diphenylhydantoin and phenobarbital combinations. Preliminary separation of the components is unnecessary. The phenobarbital content is determined by direct titration in tert.-butyl alcohol, using sodium methoxide or triethyl n-butyl ammonium hydroxide as the titrant. The total acidity is determined by titration of the sample after passage through a cation exchange resin (Amberlite IRC-50). The sodium diphenylhydantoin content is obtained by difference. Quantitative recoveries were obtained for synthetic mixtures and commercially available dosage forms

scholarly journals Colorimetric determination of boric acid

1958 ◽  
Vol 7 (3) ◽  
pp. 166-169 ◽  
Author(s):  
Hisao FUKAMAUCHI ◽  
Mieko SEKIGUCHI ◽  
Kazuko DOGUCHI
Keyword(s):  
Boric Acid ◽  
Colorimetric Determination
Sign in / Sign up

Export Citation Format

Share Document