Author : F. Khudhair, Ahmed
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
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.