PRECONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN BY FLOTATION USING CONGO RED

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ZARGAR BEHROOZ; POURREZA NAHID; NAJAFIFAR ZEINAB

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Seminar Paper

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Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2013 | Issue:16

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Title

PRECONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN BY FLOTATION USING CONGO RED

Author(s)

ZARGAR BEHROOZ | POURREZA NAHID | NAJAFIFAR ZEINAB | Issue Writer Certificate

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Abstract

IN THIS STUDY A SIMPLE FLOATATION METHOD USING CONGO RED AS A FLOATING AGENT HAS BEEN DEVELOPED FOR PRECONCENTRATION AND DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN USING SPECTROPHOTOMETRY. AT PH 6, NEOMYCIN AND CONGO RED PRODUCE A FLOATED LAYER IN THE PRESENCE OF SMALL AMOUNT OF CHLOROFORM. THE LAYER WAS FLOATED BETWEEN AQUEOUS AND ORGANIC PHASES. SMALL AMOUNT OF SHIMALITE WAS ADDED TO ADSORBED THE FLOATED LAYER AND FACILATE ITS SEPARATION BY CENTRIFUGE. FORMED LAYER WAS SEPARATED USING A SYRINGE AND DISSOLVED IN SMALL VOLUME OF NAOH SOLUTION. THE PRECONCENTRATION CONDITIONS, INCLUDING THE EFFECT OF PH, BUFFER AND ITS VOLUME, AMOUNT OF ADSORBENT, IONIC STRENGTH, COMPOSITION AND VOLUME OF DISSOVING SOLVENT, BREAKTHROUGH VOLUME, TIME OF ADSORPTION AND DESORPTION OF NEOMYCIN AND INFLUENCES OF INTERFERENCES ON THE PRECONCENTRATION PROCESS WERE INVESTIGATED. THE CALIBRATION CURVE WAS LINEAR IN THE RANGE OF 0.25-4.00 MG ML-1 WITH A CORRELATION COEFFICIENT OF 0.9970. THE LIMIT OF DETECTION (LOD) AND RELATIVE STANDARD DEVIATION (RSD, FOR 2.0 MG ML-1) WAS 0.054 MG ML-1 AND 0.98 %, RESPECTIVELY. THE PROPOSED METHOD WAS SUCCESSFULLY APPLIED TO THE DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN IN NEOMYCIN SULFATE TABLETS AND NEOMYCIN POWDER SAMPLES.

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APA: Copy

ZARGAR, BEHROOZ, POURREZA, NAHID, & NAJAFIFAR, ZEINAB. (2013). PRECONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN BY FLOTATION USING CONGO RED. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/914316/en

Vancouver: Copy

ZARGAR BEHROOZ, POURREZA NAHID, NAJAFIFAR ZEINAB. PRECONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN BY FLOTATION USING CONGO RED. 2013. Available from: https://sid.ir/paper/914316/en

IEEE: Copy

BEHROOZ ZARGAR, NAHID POURREZA, and ZEINAB NAJAFIFAR, “PRECONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF NEOMYCIN BY FLOTATION USING CONGO RED,” presented at the IRANIAN CHEMISTRY CONGRESS. 2013, [Online]. Available: https://sid.ir/paper/914316/en

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