Rapid separation by carbon number and determination of naphthene and paraffin content of saturate petroleum distillates up to 185.deg.

1968 ◽  
Vol 40 (14) ◽  
pp. 2158-2167 ◽  
Author(s):  
J. V. Brunnock ◽  
L. A. Luke
Keyword(s):  
Carbon Number ◽  
Rapid Separation ◽  
Petroleum Distillates

Rapid Separation of Technetium from Fission Products

1966 ◽  
Vol 5 (1) ◽  
Author(s):  
Gerald Goldstein ◽  
John A. Dean
Keyword(s):  
Solvent Extraction ◽  
Fission Products ◽  
Rapid Separation ◽  
Selective Method ◽  
Short Irradiation

SummaryThe solvent extraction of technetium, as pertechnetate ion, with cyclohexanone was studied and proved to be an unusually rapid, efficient, and selective method of separation. This separation was applied in the determination of the number of fissions occurring in a short irradiation of uranium by measurement of

Effects of experimental conditions on the determination of the effective carbon number

2003 ◽  
Vol 57 (9-10) ◽  
pp. 639-644 ◽  
Author(s):  
M. Kállai ◽  
V. Máté ◽  
J. Balla
Keyword(s):  
Carbon Number ◽  
Experimental Conditions

A Method for the Determination of the Structure of Saturated Branched-Chain Fatty Acids

1959 ◽  
Vol 12 (4) ◽  
pp. 657 ◽  
Author(s):  
KE Murray
Keyword(s):  
Fatty Acids ◽  
Carbon Number ◽  
Carbon Chain ◽  
Octadecanoic Acid ◽  
Cyclopropane Fatty Acids ◽  
Branched Chain Fatty Acids ◽  
Tuberculostearic Acid ◽  
Branched Chain ◽  
Chain Fatty Acids

A method is described for the determination of the structure of branched-chain fatty acids. It is found that the carbon chain of methyl-branched acids can be readily degraded by potassium permanganate in acetone, to give a series of acids of decreasing carbon number. Where a branch occurs the acid series is interrupted and a methyl ketone, of the same carbon number as a missing acid, is produced. Gas chromatographic examination of the ketone(s) and esterified acids gives clear evidence for the location of the branch(es). The method is illustrated by application to tuberculostearic acid (10-methyl-octadecanoic acid) and C27-phthianoic acid (2,4,6-trimethyltetracosanoic acid). It appears also able to decide the location of the ring in cyclopropane fatty acids.

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