A method is described for the separa- 

 tion of fatty acid mixtures on undecane- 

 impregnated paper . 



Kaufmann, H. P. andM. M. Deshpande 



1958. Paper chromatography of fats. 

 XXVI. The quantitative paper chroma - 

 , tographic-polarographic analysis of 



^ fatty acids. Fette, Seifen, Anstrich- 



mittel, 60: 537-541. Chemical Ab- 

 stracts, 53:1783g(1959). 

 The paper chromatographic and polaro- 

 graphic methods for separation and deter- 

 mination of fatty acids are compared and 

 discussed. 



Kaufmann, H. P. andM. Arens 



1958. Paper chromatography of fatty 

 acids. XX Vin. Separation of thio- 

 -^ cyanogen derivatives. Fette, Seifen, 



Anstrichmittel, 60: 803-806. Chem- 



ical Abstracts, 53:3737g (1959). 

 "Critical pairs" of fatty acids may be sep- 

 arated by paper chromatography as their 

 thiocyanogen derivatives using 70% acetic 

 acid as solvent. 



Kaufmann, H. P. and H. Schnurbusch 



1958. The paper chromatography of fats, 

 XXIX. Analysis of fatty acids by means 



-^ of copper and mercury method. Fette, 



# Seifen, Anstrichmittel, 60: 1046-1050. 

 Chemical Abstracts, 53:8663h (1959). 



A method for identification of fatty acids 

 in a mixture by paper chromatography and 

 conversion to their Cu and Hg soaps is de- 

 scribed. 



Kaufmann, H. P. and H. Schnurbusch 



1959. Paper chromatography in the fat 

 field. XXX. Paper chromatographic 



"At analysis of the glycerides. Fette, 



• Seifen, Anstrichmittel , 61^: 523-528. 

 Chemical Abstracts, 54:5129a (1960). 



Glycerides are separated on paper im- 

 pregnated with silicone oil using acetone - 

 acetonitrile as solvent. The spots on the 

 devQjoped chromatogram are located by 

 coloring with copper acetate and potassium 

 ferrocyanide after saponification. 



Kaufmann, H. P. and Z. Makus 



1959. Paper chromatography in the fat 

 field. XXXI. Separation of mixtures 

 _, of synthetic and natural triglycerides 



^ by paper chromatography. Fette, Seifen, 



^ Anstrichmittel , 61: 631-636. Chemical 



Abstracts, 54:5 r29b( 1960). 

 Mixtures of triglycerides were separated 

 on paper treated with undecane by using ace- 

 tic acid as solvent. 



Kaufmann, H. P. and H. Kirschnek 



1959. Paper chromatography in the fat 



field. XXXIV. Fatty aldehydes . 5. Qual- 

 itative and quantitative analysis of fatty 

 . aldehydes with the help of paper chroma - 



tography. Fette, Seifen, Anstrichmittel, 

 6J.: 750-759. Chemical Abstracts, 54: 

 5129c (1960). 

 Fatty aldehydes were separated as their 

 2, 4-dinitrophenylhydrazones by using un- 

 decane and nitromethane as solvents for re- 

 versed -phase paper chromatography. 



Kaye, I. A. 



1940. Determination of total and free 

 cholesterol in blood serum . Journal of 

 ■ Laboratory and Clinical Medicine, 25: 



996-1001. ~ 



A method is described for determination 

 of cholesterol in blood serum by precipita- 

 tion with" digitonin directly on the lipid ex- 

 tract and colorimetric measurement by the 

 Liebermann-Burchard method. Saponifica- 

 tion is unnecessary as the concentration of 

 ester cholesterol in serum is constant. Ace- 

 tic anhydride is used as solvent for the cho- 

 lesterol standard as it gives a more stable 

 solution than chloroform . 



Sobel ( Journal of Biological Chemistry, 

 157 : 255, 1945) found the method in agree- 

 ment with the Schoenheimer-Sperry method. 



Kean, E. L. and F. C. Charalampous 



1959. New methods for the quantitative 

 estimation of myo-inositol. Biochimica 

 et Biophysica Acta, 36: 1-3. 

 Methods are described for estimation of 

 inositol by enzymic conversion of the inosit- 

 ol to glucuronic acid and colorimetric meas- 

 urement by the orcinol reaction, and by 

 spectrophotometric measurement of the 



37 



