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Determination Of Selenium By Platinum-Coated Tungsten Coil Trap Hydride Generation-Atomic Absorption Spectrometry
A highly sensitive analytical technique was developed in which gaseous hydrogen selenide generated by sodium tetrahydroborate reduction was transported and trapped on a resistively heated platinum-coated W-coil trap for in situ preconcentration. The selenium concentration was determined using hydride generation-atomic absorption spectrometry (HG-AAS). The surface of the W-coil was covered with platinum using the electrodeposition technique in the presence of H2 and Ar. According to the resultsdoi:10.46770/as.2021.026 fatcat:fwbie37p2vettcu2ebtcudjfje