Simultaneous Determination of V (V) and Co (II) as (S)-5-Methoxy-2-[[(4-Methoxy-3, 5-Dimethyl-2-Pyridinyle-Methyle] Sulfinyle]-1H-Benzimidazole Using Derivative Spectrophotometry
B. Ranganath,
P. Venkataramana,
M. R. Jayapal
Issue:
Volume 1, Issue 1, July 2015
Pages:
1-6
Received:
9 June 2015
Accepted:
7 July 2015
Published:
8 July 2015
DOI:
10.11648/j.ijpc.20150101.11
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Abstract: The reagent (S)-5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyle-methyle] sulfinyle]-1H-benzimidazole gives greenish yellow coloration with V (V) as well as Co (II) in basic medium. This observation is used for the simultaneous determination of both the metal ions using Zero and second order derivative spectrophotometry. Optimum conditions were established for this determination. Job’s and mole-ratio methods are used for the determination of composition of the metal complexes. Determination of the metal ions was carried out in BAS alloys, and NTP ball bearings.
Abstract: The reagent (S)-5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyle-methyle] sulfinyle]-1H-benzimidazole gives greenish yellow coloration with V (V) as well as Co (II) in basic medium. This observation is used for the simultaneous determination of both the metal ions using Zero and second order derivative spectrophotometry. Optimum conditions were ...
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Direct Spectrophotometric Determination of Ni (II) Using Esomeprazole
B. Ranganath,
V. Saleem Basha,
M. R. Jayapal,
P. Venkata Ramana
Issue:
Volume 1, Issue 1, July 2015
Pages:
7-11
Received:
9 June 2015
Accepted:
8 July 2015
Published:
15 July 2015
DOI:
10.11648/j.ijpc.20150101.12
Downloads:
Views:
Abstract: Esomeprazole is a new chromogenic reagent used for the determination of nickel (II) by direct spectrophotometric method. Esomeprazole forms a greenish yellow colouredcomplex with nickel (II) at pH 5. The method obeys Beer’s law over 0.139 – 1.394 μg mL-1, Sandell’s sensitivity is0.0029mg/cm2and molar absorptivity value (ε = 2.5 x 104 L mol-1cm-1) . The method is useful for determination of nickel in in groundnut seeds and sesame seeds was determined by the following procedure.
Abstract: Esomeprazole is a new chromogenic reagent used for the determination of nickel (II) by direct spectrophotometric method. Esomeprazole forms a greenish yellow colouredcomplex with nickel (II) at pH 5. The method obeys Beer’s law over 0.139 – 1.394 μg mL-1, Sandell’s sensitivity is0.0029mg/cm2and molar absorptivity value (ε = 2.5 x 104 L mol-1cm-1) ....
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