Teeri, A. E. 



1944. On the determination of esterifled 

 cholesterol. Journal of Biological Chem - 

 " istry, 156: 279-281. 



Esterified cholesterol was found to pro- 

 duce approximately 25% more colot with 

 Liebermann-Burchard reagents than free 

 cholesterol . 



Teorell, T. 



1931. Spectrophotometric determination 

 of phosphorus . Biochemische Zeit- 

 A schrift, 230 : 1-9. Chemical Abstracts, 



25: 1756 (1931). 

 A modification of the Fiske-Subbarow 

 method for use in the determination of 0.01 

 to 0.05 mg. P by spectrophotometry. Accu- 

 racy of the method is +2%. 



Thaler, H. and E. Just 



1944. Determination of the phosphatide 

 content of fats . Fette und Seifen, 51: 

 A 55-59. Chemical Abstracts, 42:1069d 



(1948). 

 A method for determination of phospha- 

 tides by burning off the organic matter in 

 the presence of MgO and precipitation of P 

 as ammonium phosphomolybdate is described. 



Thaler. H. 



1952. Determination of phosphorus in fats 

 of low phosphatide content. Fette und 

 A Seifen, 54; 763-765. Chemical Ab- 



stracts, _47: 6675b (1953). 

 Details are given of a method for deter- 

 mination of phosphorus in fats containing 

 little phosphatide by an adaptation of the 

 method of Beveridge and Johnson (Canadian 

 Journal of Research, 27E: 159, 1949). 



Thannhauser, S. J., J. Benotti, andH. Rein- 

 stein 



1939. Studies on animal lipids. XIV. 

 The determination of lecithin, cephaUn, 

 and sphingomyelin in body fluids and 

 A tissues; with analyses of normal human 



sera . Journal of Biological Chemistry, 

 129: 709-716. 

 Sphingomyelin is determined as the 

 reineckate according to Thannhauser and 

 Setz ( Journal of Biological Chemistry , 116: 

 533, 1936) except that the precipitate is 

 washed with acetone to remove reineckate 

 other than sphingomyelin, and the sphingo- 

 myelin calculation is based on phosphorus 

 content of the reineckate rather than total 

 weight of the precipitate. 



Choline is liberated by hydrolysis with 

 gaseous HCl in methanol and determined as 

 the reineckate. 



The value of lecithin is calculated as the 

 difference in sphingomyelin and choline 

 values, and cephalin is calculated as the 

 difference in total and choline -containing 

 phospholipids . 



Thannhauser, S. J., J. Benotti, and N. F. 

 Boncoddo 

 1946. The preparation of pure sphingo- 

 ■^ myelin from beef lung and the identifica- 



tion of its component fatty acids . Journal of 



A Biological Chemistry, 166 : 677-681. 



Pure sphingomyelin was prepared by alka- 

 line saponification or by exhaustive extrac- 

 tion with 97% acetone in water of crude 

 sphingomyelin extracted from lung. The 

 fatty acids were identified by vacuum distil- 

 lation and recrystallization, followed by 

 direct titration of the free acids . 



Thannhauser, S.J. and P. Setz 



1936. Studies on animal Upids . XI. The 

 reineckate of the polydiamino phospha- 

 A tide from spleen. Journal of Biological 



Chemistry , 116 : 527-531. 

 Diaminophosphatide is prepared by con- 

 tinuous extraction with MeOH-CHCl3 (1:1) 

 from freeze-dried tissue. Monoaminophos- 

 phatide was separated from diaminophos- 

 phatide by precipitation of the diamino as 

 the reineckate. 



Thannhauser, S. J., N. F. Boncoddo, and 

 G. Schmidt 



1951 . Studies of acetal phospholipides of 

 brain. I. Procedure of isolation of crys- 

 ■^ tallized acetal phospholipide from brain. 



A Journal of Biological Chemistry , 188: 



417-421. 

 A method is described for the isolation 

 and purification of acetal phospholipid from 

 beef brain by a series of solvent extractions 

 and saponification. 



68 



