Determination of Isomeric Distribution in Mixedo-andp-Toluenesulfonamides by Ultraviolet Absorption

1959 ◽  
Vol 31 (11) ◽  
pp. 1806-1808 ◽  
Author(s):  
F. N. Stewart ◽  
J. E. Caldwell ◽  
A. F. Ueiner
Keyword(s):  
Ultraviolet Absorption ◽  
Isomeric Distribution

Correction - Significance of pH in Determination of Vanillin by Ultraviolet Absorption

1957 ◽  
Vol 29 (12) ◽  
pp. 1893-1893
Author(s):  
Duane T. Englis ◽  
Louis A. Wollerman
Keyword(s):  
Ultraviolet Absorption

MIP-coated Eu(BTC) for the fluorometric determination of lincomycin in eggs

2019 ◽  
Vol 11 (35) ◽  
pp. 4501-4510 ◽  
Author(s):  
Pu Wu ◽  
Qiuzheng Du ◽  
Yiyang Sun ◽  
Zhonghong Li ◽  
Hua He
Keyword(s):  
Ultraviolet Absorption ◽  
Fluorometric Determination ◽  
New Perspective

This study provides a new perspective for the determination of weak ultraviolet absorption or non-fluorescent substances.

Simple Method for Determination of Glycine and Niacin in Drug Mixtures

1968 ◽  
Vol 51 (1) ◽  
pp. 11-14
Author(s):  
Keith L Egli ◽  
Anthony Romano
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Ultraviolet Absorption ◽  
Simple Method ◽  
Drug Mixtures ◽  
Layer Chromatography

Abstract A method, based on the formol titration of glycine and the ultraviolet absorption of niacin, has been developed for the determination of these compounds in drug mixtures. Neither compound requires isolation for the determination. Glycine and niacin are identified by thin layer chromatography

scholarly journals Determination of Sodium Xylene Sulphonate and Lignin Substances in the Hydrotropic Process with the Ultraviolet Absorption Method

1960 ◽  
Vol 14 (3) ◽  
pp. 170-175
Author(s):  
Hiroshi Asaoka ◽  
Sadao Takahashi ◽  
Kanemichi Suzuki ◽  
Shin-ichi Ito
Keyword(s):  
Ultraviolet Absorption ◽  
Absorption Method

CHEMICAL METHOD FOR THE DETERMINATION OF URINARY ALDOSTERONE

1957 ◽  
Vol 35 (1) ◽  
pp. 425-443 ◽  
Author(s):  
Wojciech Nowaczynski ◽  
Erich Koiw ◽  
Jacques Genest
Keyword(s):  
Normal Subjects ◽  
Ultraviolet Absorption ◽  
Anxiety State ◽  
High Potassium ◽  
High Sodium ◽  
Pregnancy Anxiety ◽  
Potassium Intake ◽  
High Degree ◽  
Sodium And Potassium

A new method of purification of crude neutral extracts of urine for the isolation and determination of aldosterone is presented. The specificity and accuracy of the method depend upon the high degree of purity of the aldosterone isolated. The assertion that the substance isolated is aldosterone is based on the mobilities in the three chromatographic systems used, on the typical ultraviolet absorption curve, on the satisfactory agreement between the values obtained by ultraviolet absorption and by blue tetrazolium reaction, and by the typical chromogen spectra in concentrated sulphuric acid and in 100% phosphoric acid. Values obtained in nine normal subjects on ordinary diets vary from 2.2 to 10 μg. per day with a mean of 5.1. Illustrations of results obtained during pregnancy, anxiety state, and periods of high potassium and combined high sodium and potassium intake are presented.

Ultraviolet Absorption Determination of C9and C10Aromatics

1953 ◽  
Vol 25 (1) ◽  
pp. 183-187 ◽  
Author(s):  
M. S. Norris ◽  
N. D. Coggeshall
Keyword(s):  
Ultraviolet Absorption ◽  
Absorption Determination
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