Abstract
Current work deals with direct determination of Bismuth element insolid samples using a labmade Hydride Generation(HG) accessory for Flame Atomic Absorption Spectrometry (FAAS) instrument. In this method an appropriate amount of solid powder sample, are added into the HG reactor and the produced bismuth trihydride is then transferred into the slotted quartz tube just above the flame where analysis is performed. The samples of viscose and liquid solutions can be analyzed after drying the sample in HG reactor prior to generating the hydride vapor. Affecting parameters including: carrier gas flow rate, volume and concentration of the HCl acid and reducing agent solution were optimized to achieve best results. Dynamic range of calibration was linear between 20 to 2500 ppb and Relative Standard Deviation (RSD) for 4 times measurement was 5.44%. The recovery of Bismuth in real samples of Bismuthsubcitrate tablets and Bismuthsubnitrate ointment by this method were found to be 98.14% and 84.08%,
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