Theile, O. W. 



1958. A method for the determination 

 of total Upides in organs . Zeitschrift 



fiir physiologische Chemie, 311 : 136- 

 • 139. Chemical Abstracts, 52:156331 



(1958) 

 The tissue is lypholized, and the lipid is 

 extracted with CHCl3-MeOH (1:3) under re- 

 flux. The extract is evaporated, the resi- 

 due is dissolved in CHCl3-MeOH (2:1), over- 

 laid with H2O, and left standing overnight . 

 The water is removed, and the lipid mate- 

 rial is dried and weighed. 



Thompson, A. R. 



1950. A colorimetric method for the 

 determination of esters . Australian 



Journal of Scientific Research, (A) 3 : 

 * 128-135. Chemical Abstracts, 45:499f 



(1951). 

 An extension of the colorimetric method 

 of Hill ( Industrial and Engineering Chemis - 

 try, Analytical Edition, 18: 317, 1946; Ana - 

 lytical Chemistry, 19: 932, 1947) for deter- 

 mination of esters as their hydroxamic acid 

 derivatives. The method is for use in de- 

 termination of volatile esters and includes 

 fixed reaction times and lower reaction 

 temperature . 



Thompson, A. R. 



1951. Separation of saturated monohy- 

 droxamic acids by partition chroma- 

 •^ tography on paper . Australian Journal 



% of Scientific Research, (B) 4 : 180-186. 



Chemical Abstracts, 46:427f'(1952). 

 The lower hydroxamic acids were sep- 

 arated by paper chromatography using var- 

 ious solvent systems, and located on the 

 chromatograms by spraying with FeCl3 

 solution. 



Thornton, M . H . and F . K . Broome 



1942. Determination of choline . A photo- 

 metric modification of Seattle's meth- 

 od. Analytical Chemistry, 14: 39-41. 

 Choline reineckate in acetone solution is 

 nieasured colorimetrically. For use with 

 0.6 to 16.0 mg. of choline. Maximum error 

 is 2%. 



Toms, H. 



1928. Oil bromide films and their use in 



determining the halogen absorption 



of oils. Analyst , 53: 69-97. 

 The unsaturation of an oil is determined 

 by absorption of bromine vapor and gravi- 

 metric determination of the change in wei^t 

 of the sample caused by the bromine ab- 

 sorbed. Results by this method are in ac- 

 cord with Wijs determination. 



Tom sett, S. L. andW. S. Tennant 



1956. A method for determining esteri- 

 fied fatty acid with zone electrophoresis 

 9 of serum proteins . American Journal 



of CUnical Pathology, 26: 1226-1230. 

 After electrophoresis of serum, the fatty 

 acids are extracted from the paper and de- 

 termined spectrophotometrically as their 

 hydroxamic acid derivatives. 



Tomsett, S. L. 



1958. The determination of formaldehyde 

 and acetaldehyde liberated in the per- 

 iodate and ninhydrin reactions . Ana- 

 lytica Chimica Acta, ^: 360-363. (In 

 English). Chemical Abstracts , ^: 20921 

 (1960). 

 Formaldehyde and acetaldehyde are sep- 

 arated by aeration and are determined col- 

 orimetrically by means of chromotropic 

 acid atid p-hydroxybiphenyl, respectively. 

 The method is suitable for determination of 

 acetaldehyde and formaldehyde liberated by 

 reaction of sugars, serine and threonine 

 with periodate, and glycine and alanine with 

 ninhydrin. 



Tourtellotte, W. W., A.J. Vander, B. A. 

 Skrentny, and R.N. Dejong 



1958. A study of lipids in the cerebro- 

 spinal fluid. II. The determination of 

 total lipids. Journal of Laboratory and 



Clinical Medicine, 52: 481-490. 

 A method is described for the determina- 

 tion of 2 jxg. of total lipids by oxidation with 

 dichromate-sulfuric acid reagent and color- 

 imetric measurement of the reduced chro- 

 mium ion. 



69 



