Determination of Te in soldering tin using continuous flowing electrochemical hydride generation atomic fluorescence spectrometry

Simultaneous multi-channel hydride generation atomic fluorescence spectrometry determination of arsenic, bismuth, tellurium and selenium in tea leaves

“…The hydride generation atomic fluorescence spectrometry (HG-AFS) has been used for determination of As, Bi, Te and Se because of its wide linear dynamic range, low noise level, high sensitivity, speed of analysis, ease of operation, and low cost (Eva, Ángel, & Miguel, 2005;Feng & Fu, 1998;Jiang, Gan, Han, & He, 2008;Moscoso-Pérez et al, 2004;Xing, Wang, Zhang, & Zhang, 2009). A literature survey revealed that most of such work concentrated on single element or double ones analysis, whereas, to the best of our knowledge, no HG-AFS procedure for the simultaneous determination of As, Bi, Se and Te in tea leaves has been published previously.…”

Determination of mercury by electrochemical cold vapor generation atomic fluorescence spectrometry using polyaniline modified graphite electrode as cathode

“…A homemade thin-layer electrolysis cell similar to that described in our previous work [24] was applied as the EC-VG cell for mercury vapor generation, in which, a Pt foil and a piece of PANI/graphite (58 mm × 9 mm) were used as anode and cathode, respectively. A direct current (DC) constant current and voltage unit (Type DH1719A-3, Beijing Da Hua Wireless instrument Co, Beijing, China) operating at constant current mode was used.…”

Electrochemical hydride generation atomic fluorescence spectrometry for detection of tin in canned foods using polyaniline-modified lead cathode

“…A homemade thin-layer electrolysis cell similar to that described in our previous work [21] was applied as the ECVG cell for tin hydride generation, in which, a Pt foil and a piece of PANI/Pb electrode (58 mm × 9 mm) were used as anode and cathode, respectively. The interelectrode gap was about 6 mm and a homogeneous anion exchange membrane was used for the separation of the two compartments.…”

“…As far as known, the bare Pb electrode could efficiently reduce Sn(IV) into atomic Sn, but their subsequent transformation to SnH 4 is insufficient, since the reduced analyte on bare Pb electrode is easily combined with Pb [21]. As a result, it will bring higher memory effect in determination procedure.…”