Preparation and characterization of Cu(II)-lignocaine complex. Indirect estimation of lignocaine in pharmaceutical preparations by atomic absorption spectroscopy (AAS)

1994 ◽  
Vol 12 (9) ◽  
pp. 1209-1213 ◽  
Author(s):  
M.A. El-Ries ◽  
F.M.Abou Attia ◽  
F.M. Abdel-Gawad ◽  
S.M.Abu El-Wafa
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Pharmaceutical Preparations ◽  
Indirect Estimation

Determination of Vitamin Bi in Pharmaceutical Preparations Using a Lead Ion Selective Electrode and Atomic Absorption Spectroscopy

1979 ◽  
Vol 62 (2) ◽  
pp. 315-319
Author(s):  
Saad S M Hassan ◽  
Mohamed T Zaki ◽  
Mohamed H Eldesouki
Keyword(s):  
Standard Deviation ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Pharmaceutical Preparations ◽  
Ion Selective Electrode ◽  
Lead Ion ◽  
Fluorometric Method ◽  
Selective Electrode

Abstract Simple, rapid, and accurate methods have been developed for determining vitamin Bx in pharmaceutical preparations without prior separation of the vitamin. The methods are based on the desulfurization reaction with potassium plumbite and measurement of the unreacted lead (II) ions at 217 nm using atomic absorption spectroscopy (AAS), or by titration with EDTA at pH 4.5 with the lead ion selective electrode and Gran's plot. The results compare favorably with those obtained using the USP fluorometric method. Recoveries of pure vitamin Bx averaged 99.1%, with a standard deviation of 0.8%, and 99.0%, with a standard deviation of 0.7%, for the AAS and ion selective electrode procedures, respectively.

Application of Atomic Absorption Spectroscopy to Pharmaceutical Analysis

1970 ◽  
Vol 53 (2) ◽  
pp. 237-239
Author(s):  
J R Leaton
Keyword(s):  
Sample Preparation ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Pharmaceutical Analysis ◽  
Pharmaceutical Preparations ◽  
Lanthanum Chloride ◽  
Acid Dissolution ◽  
Standard Deviations

Abstract Procedures are described for analysis of minerals and element-containing drugs in various pharmaceutical preparations by atomic absorption spectroscopy. Sample preparation of liquids, powders, tablets, and ointments is reduced to a minimum by employing the technique of acid-dissolution and a releasing agent of lanthanum chloride. There are little or no elemental interferences or losses as shown by high recoveries and low standard deviations. Recoveries from commercial preparations ranged from 94 to 106% of theory or declared amount. Guidelines and operating instrumental conditions are given.

Characterization of a high-pressure microdischarge using diode laser atomic absorption spectroscopy

2002 ◽  
Vol 11 (4) ◽  
pp. 476-483 ◽  
Author(s):  
C Penache ◽  
M Miclea ◽  
A Br uning-Demian ◽  
O Hohn ◽  
S Sch ssler ◽  
...  
Keyword(s):  
High Pressure ◽  
Atomic Absorption ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy

scholarly journals SYNTHESIS AND CHARACTERIZATION OF COMPLEX DIAQUADIHYDANTOIN NICKEL(II) SULFAT MONOHIDRAT)

2016 ◽  
Vol 10 (2) ◽  
pp. 137
Author(s):  
Sentot Budi Rahardjo ◽  
Surya Dewi Marliyana ◽  
Nur Asih Siwi Wulandari
Keyword(s):  
Thermal Analysis ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Functional Group ◽  
Synthesis And Characterization ◽  
Infra Red ◽  
Thermal Analyser ◽  
Differential Thermal Analyser

<p>The purpose of the research is to find out the synthesis, formula and characteristic of complex of Nickel(II) with hydantoin (hyd). Complex of nickel(II) with  hydantoin  have been synthesized in 1 : 1 mole ratio of metal to ligan in methanol.The formula of  complex which are predicted from analysis of % Ni in complex by Atomic Absorption Spectroscopy (AAS) is Ni(hyd)<sub>2</sub>(H<sub>2</sub>O)<sub>3</sub>.SO<sub>4</sub>.  Ratio  of  cation  and  anion  of  complex  is  measured  by conductivitymeter  correspond to 1: 1.  The thermal analysis  is determined  by Differential Thermal  Analyser  (DTA)  indicate  that  complex  contain  some  hydrate,  thus  possibility formula  of  complex  is  [Ni(hyd)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]SO<sub>4</sub>.H<sub>2</sub>O (Diaquadihydantoinnikel(II) sulfat monohidrat).  Data  of  infra  red  spectra  show  a  shift  of  N-H  group  and  tertier  N  group 138 absorption  and  indicate  this  functional  group  coordinated  to  the  center  ion.  Magnetic Suscepbility measurement show that the complex is paramagnetic with μ<sub>eff</sub>  = 3.2  BM. The UV-Vis spectra appear do to 2 transition peak on  λ  =  740 nm (13,513 cm<sup>-1</sup>) and  405 nm (24,691 cm<sup>-1</sup>).  The peak indicate that structure of complex is octahedral with transition <sup>3</sup>A<sub>2g</sub>→ <sup>3</sup>T<sub>1g</sub>(P)(ν<sub>2</sub>) andtransition <sup>3</sup>A<sub>2g</sub>  → <sup>3</sup>T<sub>1g</sub>(F)(ν<sub>3</sub>). One peak which  is  not appear is transition <sup>3</sup>A<sub>2g</sub> → <sup>3</sup>T<sub>2g</sub> (F)(ν<sub>1</sub>) which also estimate of 10 Dq (Δ<sub>0</sub>) is 103.615 kJ mol<sup>-1</sup>.</p>

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