Precision of a plutonium analytical method using solvent extraction and spectrophotometry

1991 ◽  
Vol 150 (2) ◽  
pp. 435-444
Author(s):  
P. G. Mendoza ◽  
D. D. Jackson ◽  
T. M. Niemczyk
Keyword(s):  
Solvent Extraction ◽  
Analytical Method

A SOLVENT-EXTRACTION STUDY OF THE THERMODYNAMICS OF ANILINE AND ITS NITRATE

1966 ◽  
Vol 44 (4) ◽  
pp. 521-525 ◽  
Author(s):  
A. Aboul-Seoud ◽  
M. Doheim
Keyword(s):  
Solvent Extraction ◽  
Sodium Nitrate ◽  
Analytical Method ◽  
Distribution Coefficients ◽  
Distribution Method ◽  
Aqueous Sodium ◽  
Extraction Study ◽  
Different Temperatures ◽  
Extracting Solvent ◽  
Nitrate Solutions

The distribution coefficients of aniline between n-heptane and aqueous sodium nitrate solutions were measured at different temperatures. The activity coefficients of aniline in aqueous sodium nitrate solutions were determined. The effect of sodium nitrate on the dissociation of the anilinium ion was studied at different temperatures by a modified distribution method. Attention was directed to the choice of the extracting solvent and of the analytical method. The effect of the presence of undissociated anilinium ions on the distribution coefficients was taken into consideration.K0, Kb, ΔH, ΔF, and ΔS for the dissociation of the anilinium ion were evaluated.

Note: A rapid method for the determination of lipids an fatty acids in bread by gas chromatography / Nota: Método rápido para la determinación de lípidos y ácidos grasos en pan mediante cromatografía de gases

1998 ◽  
Vol 4 (3) ◽  
pp. 207-210
Author(s):  
Y.A. Sultanovitch ◽  
O. Philipp ◽  
M. Schmelewa ◽  
H.D. Isengard
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Solvent Extraction ◽  
Analytical Method ◽  
Extraction Method ◽  
Conversion Factor ◽  
High Sensitivity ◽  
Solvent Extraction Method ◽  
Conventional Solvent Extraction

A new simple and fast analytical method was developed to characterize the content of lipids and fatty acids in bread. First, fatty acids were determined by gas chromatography and then the content of lipids was calculated by using a conversion factor. This method gave very accurate results; it was three times faster than the conventional solvent extraction method and its consumption of solvent was much lower. The high sensitivity allowed the distribution of lipids in bread to be determined.

Determination of polyphenols in the pear pulp matrix by solvent extraction and liquid chromatography with UV-Vis detection

2014 ◽  
Vol 6 (24) ◽  
pp. 9769-9776 ◽  
Author(s):  
Maria Raja ◽  
Joel Hernández-Revelles ◽  
Santiago Hernández-Cassou ◽  
Javier Saurina
Keyword(s):  
Liquid Chromatography ◽  
Solvent Extraction ◽  
Analytical Method ◽  
Polyphenolic Compounds

A new analytical method for the determination of polyphenolic compounds in pear pulp was developed here.

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