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

El-Ries, M. A.; Attia, Fekria M. Abou; Abdel-Gawad, F. M.; El-Wafa, Samy M. Abu

doi:10.1016/0731-7085(94)80039-1

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1997

2024

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Cited by 11 publications

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“…A major review has appeared that discusses the methods and procedures used to analyze pharmaceutical and related compounds from November 1992 to October 1994 (). Likewise, other papers have considered more general topics such as regulatory issues related to standards and practices ( − ), validation ( − ), impurity analysis (), quality control (), and cleaning ().…”

mentioning

confidence: 99%

Pharmaceuticals and Related Drugs

Gilpin

Pachla

1997

Anal. Chem.

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mentioning

confidence: 99%

Pharmaceuticals and Related Drugs

Gilpin

Pachla

1997

Anal. Chem.

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Bibliography

1998

Atomic Absorption Spectrometry

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Indirect Determination of Sulfadiazine by Cloud Point Extraction/Flow Injection‐Flame Atomic Absorption (CPE/FI‐FAAS) Spectrometry

Dadfarnia

Hajishabani

Rad

2011

J Chinese Chemical Soc

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An indirect simple and rapid cloud point extraction is proposed for separation and preconcentration of sulfadiazine and its determination by flow injection-flame atomic absorption spectroscopy (FI-FAAS). The sulfadiazine from 35 mL of solution was readily converted to silver sulfadiazine upon addition of silver nitrate (9.7 × 10 -5 mol/L). Then, Triton X-114 a non ionic surfactant was added and the solution was heated to 60°C. At this stage, two separate phases was formed and silver sulfadiazine enters the surfactant rich phase of non-ionic micelles of Triton X-114. The surfactant-rich phase (~50 µL) was then separated and diluted to 300 µL with acidic methanol. The concentration of silver in the surfactant-rich phase which is proportional to the concentration of sulfadiazine in sample solution was determined by FI-FAAS. The parameters affecting extraction and separation were optimized. Under the optimum conditions (i.e. pH 2-10, silver concentration (9.7 × 10 -5 mol/L), Triton X-114 (0.075% v/v) and temperature 60°C) a preconcentration factor of 117 and a relative standard deviation of 4.9% at 37 mg L -1 of sulfadiazine was obtained. The method was successfully applied to analysis of milk, urine and tablet samples and accuracy was determined by recovery experiments.

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

Cited by 11 publications

References 11 publications

Pharmaceuticals and Related Drugs

Pharmaceuticals and Related Drugs

Bibliography

Indirect Determination of Sulfadiazine by Cloud Point Extraction/Flow Injection‐Flame Atomic Absorption (CPE/FI‐FAAS) Spectrometry

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