ISSN: 1813-0410

Keywords : Turbidity


Optimization of a new cloud point extraction procedure for the determination of trace amounts of total Barium (II) in some environmental samples by turbidimetric

Shamaa Ibrahem sead

journal of kerbala university, 2016, Volume 12, Issue 1, Pages 45-55

A new, simple, and rapid cloud point extraction (CPE) procedure system, combined with turbidity was created for particular partition, preconcentration, and determination of follow measures of aggregate barium in some ecological specimens. The methodology depends on the complexation of Ba(II) particles with chlorazol clear reagent within the sight of SDS as a non-ionic surfactant. The ideal conditions for the CPE of Ba(II) particles were explored as for a few trial parameters, for example, order addition , pH of the solution, SDS and chlorazol blank concentrations, incubation time and temperature, and effect of intervirrnses and time.
The detection limit for Ba(II) ions taking into account the 8 times the standard deviation of the blanks (N:8) was found to 0.004554μg mL−1, while the relative standard deviation (RSD) was 0.041514 . The proposed strategy was broke down for soil and water tests, which assembled from Environment Iraq , as guaranteed reference materials , were utilized, and spike tests were connected to accept the technique. The technique was connected to some genuine ecological examples to assess their aggregate barium levels. With respect to accomplished information, water and soil of contextual analysis is dirtied

A new Approach for the Turbidimetric Determination of Cyproheptadine Hydrochloride in Pharmaceutical Preparations by Using Homemade Linear Array Ayah 6SX1-T-2D Solar cell CFI Analyser

Nagam S.Turkey Al-Awadie; Kefah H. Ismael Al-saadi

journal of kerbala university, 2015, Volume 11, Issue 1, Pages 61-80

A new turbidimetric – flow injection method is described for the determination of Cyproheptadine hydrochloride(CPH-HCl) in pure and pharmaceutical preparations .The method is characterized by simplicity ,sensitivity and speed ,it is based on formation of ion-pair between CPH-HCl and hexacyanoferrate (III) in aqueous medium to form yellow precipitate .This precipitate was determined using homemade Ayah 6SX1-T-2D Solar cell-CFI Analyser via the reflection of incident light from the surfaces precipitated particles at (0-180°) .Chemical and physical parameters were studied and optimized .The calibration graph was linear in the range of 0.5- 10 mmol.L-1 , with correlation coefficient r = 0.9785 ,while the percentage linearity (%r2) was %95.75 .The limit of detection (S/N=3) 280.72 ng /100 µL from the stepwise dilution for the minimum concentration in the calibration graph with RSD lower than %1.5 for 5and 7 mmol.L-1 (eight replicates ) concentration of CPH-HCl .The method was successfully applied for the determination of CPH-HCl in three different companies of pharmaceutical drugs . A comparison was made between the newly developed method analysis with classical method (HANNA instrument for turbidity measurement) using standard addition method via the use of t-test and F-test ,it was found that there was no significant difference between two methods at %95 confidence level .

Determination of Bismuth (III) ion by continuous flow injection analysis via turbidimetric (T180o) and scattered light effect at two opposite position (2N90o ) using Ayah 4SW-3D-T180o -2N90o -Solar - CFI Analyser

Nagam S. Turkey Al-Awadie; Ahmed F. Khudhair

journal of kerbala university, 2014, Volume 10, Issue 0, Pages 182-198

A simple and highly sensitive method for the determination of Bi(III) ion was developed by continuous flow injection analysis via turbidimetric (T180o) and scattered light effect at two opposite position (2N90o). The formation of a black precipitate is based upon the reaction between Bi(III) with SnO22- in basic medium. The precipitate is measured via the attenuation of incident light and it’s scattering in two opposite directions. Chemical and physical parameters were studied to obtain the best condition . The linearity of Bi(III) ion is ranged from 0.08 to50mmol.L-1, with correlation coefficient r=0.9973, limit of detection (LOD) 0.06 mmol.L-1(3SB)(S/N=3) and the percentage relative standard deviation for 45 mmol.L-1 Bi(III) solution is lower than 3% (n=6). This method has been applied successfully to determine a bismuth ion in drug. Also provided a comparison between the new method with the classical method (spectrophotometric method) of analysis using the standard addition method. It shows that there was no significant difference via the use of paired t- test at α=0.05(95% confidence) between the two methods and could be using the develop method as an alternative method.