QUANTITATIVE CHROMATOGRAPHIC METHODS: PART 6. IMPROVED PROCEDURE FOR DETERMINATION OF AMINO COMPOUNDS ON PAPER CHROMATOGRAMS

1961 ◽  
Vol 39 (2) ◽  
pp. 427-437 ◽  
Author(s):  
E. Tigane ◽  
E. H. M. Wade ◽  
J. Tze-Fei Wong ◽  
C. S. Hanes
Keyword(s):  
Quantitative Determination ◽  
Paper Chromatography ◽  
General Applicability ◽  
Chromatographic Methods ◽  
Factors Influencing ◽  
Amino Compounds

A procedure is described for the quantitative determination of amino compounds separated by paper chromatography. The procedure is of general applicability, and more specifically has been extensively applied to the standard P-E-PP and P-E-T chromatograms. Recovery data from these chromatograms have been obtained, and the various factors influencing the accuracy of analysis are discussed.

Supercritical fluid (CO2) chromatography for quantitative determination of selected cancer therapeutic drugs in the presence of potential impurities

2015 ◽  
Vol 7 (3) ◽  
pp. 1092-1097 ◽  
Author(s):  
Venkata Narasimha Rao Ganipisetty ◽  
B. Ravi ◽  
Ch. Rajsekhara Reddy ◽  
RajKumar Gurjar ◽  
P. Manoj ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Supercritical Fluid ◽  
Chromatographic Methods ◽  
Therapeutic Drugs ◽  
System P ◽  
Supercritical Fluid Co2

In the present study, supercritical fluid (CO2) chromatographic methods were validated for the estimation of two cancer therapeutic drugs, fulvestrant and azacitidine, using UPC2system.

Quantitative Untersuchungen über die Ommochromvorstufen in den Malpighischen Gefäßen verschiedener Drosophila-Mutanten

1968 ◽  
Vol 23 (4) ◽  
pp. 547-554 ◽  
Author(s):  
Dieter Eichelberg
Keyword(s):  
Sex Differences ◽  
Drosophila Melanogaster ◽  
Quantitative Determination ◽  
Paper Chromatography ◽  
Type A ◽  
Individual Development ◽  
Wild Type ◽  
Strong Reduction ◽  
The Individual

This paper concerns with the quantitative determination of ommochrome precursors in the Malpighian tubes of Drosophila melanogaster during the individual development. After separation by paper chromatography the amounts of tryptophane, kynurenine and 3-hydroxykynurenine have been estimated by a spectrophotometer. The concentrations of these three substances obtained from wild-type Malpighian tubes have been compared with the quantities of the mutants brown (bw) and red Malpighian tubes (red). During development there are significant variabilities in contents of tryptophane, kynurenine and 3-hydroxykynurenine in the Malpighian tubes. In the larval tubes large quantities of ommochrome precursors are accumulated. With the beginning of metamorphosis there is a distinct decrease in these substances. After hatching the amount increases steadily until reaching a constant level. In the Malpighian tubes there are also sex differences: in females the concentration of kynurenine and 3-hydroxykynurenine is higher than in males. The results obtained from the mutants brown and red Malpighian tubes are on principle the same as those obtained from wild-type. A strong reduction of kynurenine contents is found in the mutant red Malpighian tubes. Perhaps in this mutant the kynurenine-hydroxilase-activity is lower than in wild-type. The amounts of ommochrome precursors, accumulated in the larval Malpighian tubes, do not correspond in all cases to the contents of xanthommatine formed in the eyes of the adults.

Two chromatographic methods for the quantitative determination of some pesticides applied for cucumber pests in Egypt

2018 ◽  
Vol 1 (5) ◽  
pp. 334-342 ◽  
Author(s):  
Rehab M. Abdelfatah ◽  
Amira M. Hegazy ◽  
Hamada M. Mahmoud ◽  
Mohamed A. Elsayed
Keyword(s):  
Quantitative Determination ◽  
Chromatographic Methods

Quantitative determination of serum triglycerides by glass-fiber paper chromatography

1964 ◽  
Vol 8 (2) ◽  
pp. 158-163 ◽  
Author(s):  
Karoly G. Pinter ◽  
James G. Hamilton ◽  
O. Neal Miller
Keyword(s):  
Quantitative Determination ◽  
Glass Fiber ◽  
Paper Chromatography ◽  
Serum Triglycerides
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