Simultaneous Determination of Morphine, Codeine, and Porphyroxine in Opium by Infrared and Visible Spectrometry.

1962 ◽  
Vol 34 (11) ◽  
pp. 1464-1468 ◽  
Author(s):  
Klaus Genest ◽  
C. G. Farmilo
Keyword(s):  
Simultaneous Determination ◽  
Visible Spectrometry

scholarly journals Multicomponent spectrometric analysis of riboflavin and photoproducts and their kinetic applications

2014 ◽  
Vol 12 (6) ◽  
pp. 635-642 ◽  
Author(s):  
Muhammad Sheraz ◽  
Sadia Kazi ◽  
Sofia Ahmed ◽  
Kiran Qadeer ◽  
Marium Khan ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Spectrometric Analysis ◽  
Factors Affecting ◽  
Kinetics Of Degradation ◽  
Analytical Procedures ◽  
Kinetics Of ◽  
Kinetic Treatment ◽  
Visible Spectrometry

AbstractRiboflavin (RF) is a light sensitive compound and is known to form a number of photoproducts. These photoproducts possess the same nucleus and may interfere in the analysis of RF by UV and visible spectrometry. Therefore, it is necessary to apply the methods of multicomponent spectrometric analysis to quantify the vitamin and its photoproducts accurately. Such methods are useful in the study of the kinetics of photodegradation reactions of RF to obtain accurate and reliable results. Any interference in these methods due to linear or nonlinear irrelevant absorption of the minor unknown products can be accounted for by the application of appropriate correction procedures prior to kinetic treatment. Various factors affecting the accuracy, precision and selectivity of these analytical procedures are also discussed. This review highlights the principles and applications of multicomponent spectrometric methods and their application to the simultaneous determination of RF and its major photoproducts in degraded solutions to evaluate the kinetics of degradation.

A general computer program for the extended plate overlap algorithm

1978 ◽  
Vol 48 ◽  
pp. 287-293 ◽  
Author(s):  
Chr. de Vegt ◽  
E. Ebner ◽  
K. von der Heide
Keyword(s):  
Computer Program ◽  
Simultaneous Determination ◽  
General Computer Program ◽  
General Computer

In contrast to the adjustment of single plates a block adjustment is a simultaneous determination of all unknowns associated with many overlapping plates (star positions and plate constants etc. ) by one large adjustment. This plate overlap technique was introduced by Eichhorn and reviewed by Googe et. al. The author now has developed a set of computer programmes which allows the adjustment of any set of contemporaneous overlapping plates. There is in principle no limit for the number of plates, the number of stars, the number of individual plate constants for each plate, and for the overlapping factor.

Simultaneous determination of seven compounds in Euronymus alatus by HPLC-DAD

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
YS Jung ◽  
JB Weon ◽  
CJ Ma
Keyword(s):  
Simultaneous Determination
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