Evaluation of different rhodium modifiers and coatings on the simultaneous determination of As, Bi, Pb, Sb, Se and of Co, Cr, Cu, Fe, Mn in milk by electrothermal atomic absorption spectrometry

Simultaneous determination of Cu and Pb in fuel ethanol by graphite furnace AAS using tungsten permanent modifier with co-injection of Ir

“…The platform was coated with the W permanent modifier according to a heating program described in literature [16]. A volume of 250 lL of 1000 mg L À1 W stock solutions was delivered onto the integrated platform and the heating program was run 5 times.…”

Feasibility of internal standardization in the direct and simultaneous determination of As, Cu and Pb in sugar-cane spirits by graphite furnace atomic absorption spectrometry

“…A Perkin Elmer transversely heated graphite furnace atomizer (THGA TM ) with integrated platform was used after pre-treatment with W. The heating program used to coat the platform with the W permanent modifier is described elsewhere [23]. A volume of 50 L of 1.00 g L −1 W stock solution was delivered onto the integrated platform and that heating program was run five times.…”

Evaluation of modifiers for determination of V in parsley by GF AAS

“…Experiments were carried out using the STPF-concept (Slavin, Manning, & Carnrick, 1981). Tungsten and Rh-coated platforms were prepared automatically by using the facilities provided by the original software of the autosampler and graphite furnace, according to a heating programme adapted from the literature (Freschi, Freschi, & Neto, 2006;Lima, Krug, & Jackson, 1998). A volume of 50 lL of 1.00 g L À1 W or Rh stock solution was delivered onto the integrated platform and the heating programme for deposition shown in Table 1 was run.…”