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Dakhil Nassir Taha
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Medicine & Pharmacology

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Determination of Hydrogen Peroxide (H2O2) by New Design of Continues Flow Injection Unit Dakhil Nassir Taha
Journal of Global Pharma Technology Volume 11 Issue 03
Publisher : Journal of Global Pharma Technology

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Abstract

This study includes the design of continues injection system to determine the hydrogen peroxide (H2O2) containing valve is designed locally and this method is quick, cheap and characterized by high accuracy. The method is based on the fast reduction of the complex compound K3[Fe(CN)6] by H2O2 in basic medium with maximum wavelength at 420 nm. Various parameters (physical and chemical) affecting on the determination have been investigated such as flow rate, volume of the loop, concentration of the complex compound and concentration of the base. The calibration curve was prepared and the dispersion coefficient, reproducibility and application were studied. The linear range was (0.06 - 0.8) % at sampling rate of 60 sample per hour, (R2=0.9923) and the detection limit at S/N=3 was 0.02%. Dispersion coefficient was also measured for the method.Keywords: Continues Injection, Determination Hydrogen peroxide H2O2.
Determination of Diethyl Amine by Stop Flow Technique Dakhil Nassir Taha
Journal of Global Pharma Technology Volume 12 Issue 06 (2020) June 2020
Publisher : Journal of Global Pharma Technology

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Abstract

The aim of this research is determination of diethyl amine by stop flow injection analysis technique. The method is based on the reaction between diethyl amine with NQS reagent. This method involves a homemade new valve, which is manufactured from a cheap available material. Optimization of the conditions of the reaction includes, flow rate, sample volume, reagent volume, reagent concentration and reaction coil length were done. Linearity was in the range of (1-10 v/v %), correlation coefficient (R2) was 0.9967. The method was applied successfully to the determination of diethyl amine in aqueous solution. Keywords: Diethyl amine, FIA, Stop flow technique, Dispersion.
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