AN EXTRACTABLE COMPLEX OF DIBUTYL PHOSPHATE AND PHOSPHORIC ACID1

1960 ◽  
Vol 64 (5) ◽  
pp. 694-695 ◽  
Author(s):  
B. J. Thamer
Keyword(s):  
Extractable Complex

scholarly journals Spectrophotometric Determination of Zidovudine in Pharmaceutical Dosage Forms

2012 ◽  
Vol 9 (1) ◽  
pp. 89-92
Author(s):  
J. Sudhakar Reddy ◽  
MD. S. Maqsood Ahmed ◽  
I. E. Chakravarthy ◽  
K. Prabhavathi
Keyword(s):  
Statistical Analysis ◽  
Dosage Form ◽  
Dosage Forms ◽  
Ion Pair ◽  
Reagent Blank ◽  
Pharmaceutical Dosage Forms ◽  
Extractable Complex ◽  
Bulk Drug ◽  
Tablet Dosage

A simple, sensitive and economical spectrophotometric method has been developed for the determination of zidovudine in commercial dosage forms. The method was based on the formation of chloroform extractable complex of zidovudine with wool fast blue. The absorbance of the extractable ion pair complex is measured at the wavelength of maximum absorbance 590 nm against the reagent blank treated similarly. Statistical analysis proves that the proposed methods are reproducible and selective for the estimation of zidovudine in bulk drug and in its tablet dosage form.

Rapid Spectrophotometric Method for Determination of 2-Aminobutane in Postharvest Dips

1978 ◽  
Vol 61 (4) ◽  
pp. 1001-1003
Author(s):  
Harvey J Baker
Keyword(s):  
Rapid Method ◽  
Carbon Disulfide ◽  
Spectrophotometric Method ◽  
Cupric Ion ◽  
Extractable Complex

Abstract A rapid method is described for measuring 2-aminobutane in postharvest dip fluids. Samples of the dip fluid are diluted to bring the 2-aminobutane content in the range 500—5000 μg and reacted with carbon disulfide and cupric ion to form a chloroform-extractable complex measured spectrophotometrically at 430 nm. The accuracy and reproducibility of the method are comparable with the more lengthy modified product and residue methods.

scholarly journals Spectrophotometric Estimation of Abacavir Sulphate in Pharmaceutical Formulations

2008 ◽  
Vol 5 (3) ◽  
pp. 511-514 ◽  
Author(s):  
N. Appala Raju ◽  
J. Venkateswara Rao ◽  
K. Vanitha Prakash ◽  
K. Mukkanti
Keyword(s):  
Dosage Form ◽  
Pharmaceutical Formulations ◽  
Bromocresol Green ◽  
Bromophenol Blue ◽  
Green Method ◽  
Pharmaceutical Dosage Form ◽  
Extractable Complex ◽  
Bulk Drug ◽  
Tablet Dosage

Two simple, accurate, rapid and sensitive methods (A and B) have been developed for the estimation of abacavir sulphate in its pharmaceutical dosage form. The method A and B are based on the formation of chloroform extractable complex of abacavir sulphate with bromophenol blue (method A) and bromocresol green (method B), which shows absorbance maxima at 460 nm and 469 nm respectively. The absorbance-concentration plot is linear over the range of 1-10 mcg/mL for method A and B respectively. Results of analysis for all the methods were validated statistically and by recovery studies. The proposed methods are economical and sensitive for the estimation of abacavir sulphate in bulk drug and in its tablet dosage form.

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