Determination of trace silver by high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS) after separation/preconcentration on Rhodococcus ruber bacterial biomass

Abstract

In the present study, a preconcentration method was developed by using Rhodococcus ruber bacterial biomass (RrBB) for the determination of silver in various water samples by HR-CS FAAS.

A fluorescence switching sensor based on graphene quantum dots decorated with Hg2+ and hydrolyzed thioacetamide for highly Ag+-sensitive and selective detection

“…3 Considering these facts, applying a simple, rapid and accurate method to monitor silver ions at trace levels in various samples is of great importance. Various techniques have been used for the determination of silver in real samples, such as the spectrophotometric method, 4 graphite furnace atomic absorption spectroscopy (GFAAS), 5 high-resolution continuum source ame atomic absorption spectrometry (HR-CS FAAS), 6 inductively coupled plasma optical emission spectrometry (ICP-OES), 7 differential pulse anodic stripping voltammetry (DPASV), 8 and spectrouorimetry. 9,10 Although these techniques are highly sensitive and selective, they require tedious sample preparation and preconcentration procedures, expensive instruments, and professional personnel.…”