permanent modifier and co-injection of palladium–magnesium
(de Oliveira & Gomes Neto, 2007). Another work of the same research
group used tungsten as permanent chemical modifier and
co-injection of palladium–magnesium also for direct determination
of lead in vinegar (Oliveira, Oliveira, & Gomes Neto, 2007).
In a method proposed for the determination of cadmium and lead
in vinegar leached from pewter cups by ET AAS the chemical
modification was performed using palladium–magnesium (Dessuy
et al., 2011).