1,2,4,6-Tetraphenylpyridinium perchlorate as a reagent for ion-association complex formation and its use for the spectrophotometric determination of thallium

The Analyst ◽  
1982 ◽  
Vol 107 (1271) ◽  
pp. 185-189 ◽  
Author(s):  
T. Pérez Ruiz ◽  
C. Sánchez-Pedreño ◽  
J. A. Ortuño
Keyword(s):  
Complex Formation ◽  
Spectrophotometric Determination ◽  
Ion Association ◽  
Association Complex

scholarly journals USE OF ION ASSOCIATION COMPLEX FORMATION FOR THE SPECTROPHOTOMETRIC DETERMINATION OF ITOPRIDE HCL IN BULK AND ITS PHARMACEUTICAL PREPARATIONS

2016 ◽  
Vol 9 (1) ◽  
pp. 81
Author(s):  
P. V. Lakshmana Rao ◽  
C. Rambabu
Keyword(s):  
Complex Formation ◽  
Spectrophotometric Determination ◽  
Pharmaceutical Preparations ◽  
Ion Association ◽  
Pharmaceutical Formulations ◽  
Spectrophotometric Methods ◽  
Itopride Hydrochloride ◽  
Soluble Ion ◽  
Association Complex

Objective: The authors report two simple, accurate and economic spectrophotometric methods A and B for the determination of Itopride hydrochloride in bulk and dosage forms.Methods: The proposed methods are based on the formation of chloroform soluble ion-associates in the presence of acidic dyes namely BPB (Method A) and BCP (Method B) exhibiting lmax at 418 and 418 nm respectively.Results: Beer’s law is found to be obeyed in the concentration range of 2.0-10.0 µg/ml and 2.0-10.0 µg/ml. The molar absorptivities are found to be 1.42x104 and 9.61x103L/mol. cm for methods A and B. These methods are successfully applied for the assay of Itopride hydrochloride in pharmaceutical formulations.

scholarly journals Spectrophotometric Determination of Quinolone Antibiotics by an Association Complex Formation with Aluminum(III) and Erythrosin

2009 ◽  
Vol 25 (1) ◽  
pp. 125-128 ◽  
Author(s):  
Takako YAMAGUCHI ◽  
Masahiro NAKAO ◽  
Ryosuke NAKAHARA ◽  
Yuka NISHIOKA ◽  
Chiho IKEDA ◽  
...  
Keyword(s):  
Complex Formation ◽  
Spectrophotometric Determination ◽  
Quinolone Antibiotics ◽  
Association Complex

Extractive Spectrophotometric Determination of Cobalt (II) as Ion Association Complex with Thiocyanate and Ephedrine

1989 ◽  
Vol 22 (7) ◽  
pp. 1819-1827 ◽  
Author(s):  
R. A. Lorenzo Ferreira ◽  
M. L. Enseñat ◽  
M. L. Berea ◽  
F. Bermejo Martinez
Keyword(s):  
Spectrophotometric Determination ◽  
Ion Association ◽  
Association Complex
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