Kolb, D. K. and J. B. Brown 



1955. Low temperature solubilities of 

 fatty acids in selected organic solvents. 

 "A" Journal of the American Oil Chemists 



• Society, 32: 357-361. Chemical Ab- 

 stracts ; 49:10639d(1955). 



Data on the low -temperature solubilities 

 (10° to -70°) of several purified fatty acids 

 in various organic solvents are given. The 

 application of the data to separation of fatty 

 acids by low -temperature crystallization is 

 discussed. 



Korpaczy, I. 



1959. Semimicro colorimetric determina- 

 tion of the phosphorus content of lipoids. 

 Fette, Seifen, Anstrichmittel, 61: 748- 

 ^ 750. Chemical Abstracts, 54: 47301 



(1960). 

 A modification of the method of Thaler 

 ( Fette und Seifen 5_4^ 763, 1952). The sam- 

 ple is ashed with MgO and the color produced 

 with molybdate is measured colorimetrically. 



Krainick, H . G . and F . Muller 



1941 . Photometric microdetermination of 

 fat acids. Mikrochemie (vereinigt mit 



# Mikrochemica Acta)i 30: 7-14. Chemical 



Abstracts, 37:4416° (1943). 

 Blood or plasma is saponified and the 

 fatty acids are freed and extracted. An al- 

 iquot of the extract is heated with rosana- 

 line reagent, the color developed is meas- 

 ured, and the fatty acid concentration is es- 

 timated from a standard curve . Suitable for 

 determination of 0.05 - 0.5 mg. of fatty acid 

 in biological materials such as blood. 



Krewson, C. F. 



1951. Refractive indices for the methyl 

 esters of the Cj2-C28 saturated n-ali- 



# phatic acids . Journal of the American 

 Chemical Society, 73:1365. 



Methyl esters of the saturated fatty acids 

 were prepared and refractive indices of the 

 esters were determined. The refractive 

 indices for the even-numbered Cj2"G28 

 methyl esters are given. 



Kruty, M., J. B. Segur, and C . S. Miner, Jr. 

 1954. The determination of monoglycer- 



# ides and glycerol in mixtures. Journal 



of the American Oil Chemists Society, 

 31: 466-469. Chemical Abstracts, 49: 

 13461 (1955). 

 A modification of the periodic acid meth- 

 od of Pohle and Mehlenbacher (Journal of the 

 American Oil Chemists Society , 27: 54, 1950). 



Kuemmel, D. F. 



1958. Direct determination of saturated 

 fatty acids in fats, oils, and methyl es- 

 _ ters. Journal of the American Oil Chem- 



ists Society , 35 : 41-45. Chemical Ab- 

 stracts , 52:3365g (1958) . 

 Saturated fatty acids with a chain length of 

 C^^ or greater are determined by methanol - 

 ysis of the triglycerides, oxidation of the un- 

 saturated methyl esters with KMn04, remov- 

 al of the oxidation products by alkaline wash- 

 ing, and direct weighing of the isolated methyl 

 esters of the saturated fatty acids. 



Kummerow, F . A . and B . F . Daubert 



1950. Limitations of the periodate oxida- 

 tion method for the determination of 

 monoglycerides in fats and oils. 



# Journal of the American Oil Chemists 

 Society , 27: 100-102. Chemical Ab- 

 stracts , 44:4268c (1950). 



It was shown that the method of Hand- 

 schumaker and Linteris (Journal of the Am- 

 erican Oil Chemists Society , 24: 143, 1947) 

 is not specific for monoglycerides in natural 

 fats and oils. 



Kushner, D. J. 



1956. A spectrophotometric microdeter- 

 niination of choline . Biochimica et Bio - 

 physica Acta , 20: 554-555. 

 A modification of the method of Appleton 

 ( Journal of Biological Chemistry , 205 : 803, 

 1953). 



LaBarrere, J. A., J. R..Chipault, andW. O. 

 Lundberg 



1958. Cholesteryl esters of long-chain 

 ■^ fatty acids. Infrared spectra and sep- 



# aration by paper chromatography. Ana - 

 ■ lytical Chemistry, 30: 1466-1470. 



Methods are described for the paper chro- 

 matographic separation of the individual cho- 

 lesteryl esters from mixtures containing 

 both saturated and unsaturated esters. 



41 



