A MODIFIED PROCEDURE FOR THE DETERMINATION OF CAROTENE IN SILAGE

1939 ◽  
Vol 17b (10) ◽  
pp. 325-330 ◽  
Author(s):  
A. C. Neish ◽  
W. D. McFarlane ◽  
W. A. Brechin
Keyword(s):  
Partition Coefficient ◽  
Benzyl Alcohol ◽  
Chromatographic Methods ◽  
System Hexane

The pigments in silage which have been formed from xanthophyll by acids and which interfere in the determination of carotene have been separated by chromatographic methods and found to exhibit solubilities intermediate between those of carotene and xanthophyll. A method based on the partition coefficient of carotene and the interfering pigments in the system hexane-benzyl alcohol was found to give reliable estimates of carotene.

Chromatographic methods in determination of the soil–water partition coefficient

2016 ◽  
Vol 39 (5-6) ◽  
pp. 249-256 ◽  
Author(s):  
Filip Andrić ◽  
Sandra Šegan ◽  
Živoslav Tešić ◽  
Dušanka Milojković-Opsenica
Keyword(s):  
Partition Coefficient ◽  
Soil Water ◽  
Chromatographic Methods ◽  
Water Partition Coefficient

CHROMATOGRAPHIC METHODS DETERMINATION OF PESTICIDES FROM THE GROUP OF NONONICOTINOIDS

2019 ◽  
Vol 237 (1) ◽  
pp. 6-10
Author(s):  
D.V. Aleev ◽  
◽  
K.F. Khalikova ◽  
K.E. Burkin ◽  
A.V. Malaniev ◽  
...  
Keyword(s):  
Chromatographic Methods

Interphase distribution of 2-furylethylenes

1985 ◽  
Vol 50 (8) ◽  
pp. 1642-1647 ◽  
Author(s):  
Štefan Baláž ◽  
Anton Kuchár ◽  
Ernest Šturdík ◽  
Michal Rosenberg ◽  
Ladislav Štibrányi ◽  
...  
Keyword(s):  
Partition Coefficient ◽  
Partition Coefficients ◽  
Transport Rate ◽  
Phase System ◽  
Two Phase ◽  
Interphase Distribution ◽  
Distribution Kinetics ◽  
System 1 ◽  
Kinetics Of

The distribution kinetics of 35 2-furylethylene derivatives in two-phase system 1-octanol-water was investigated. The transport rate parameters in direction water-1-octanol (l1) and backwards (l2) are partition coefficient P = l1/l2 dependent according to equations l1 = logP - log(βP + 1) + const., l2 = -log(βP + 1) + const., const. = -5.600, β = 0.261. Importance of this finding for assesment of distribution of compounds under investigation in biosystems and also the suitability of the presented method for determination of partition coefficients are discussed.

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