Electrothermal atomic absorption determination of lead ionic forms extracted by phosphate buffer solution in biological samples
Vladimir Nikolaevich Losev, Natalya Valeryevna Maznyak, Anna Pavlovna Verkhoturova
Abstract
To determine the lead ionic forms in laboratory rats tissues in exogenous intoxication experiment a procedure of phosphate buffer extraction (PBS) and electrothermal atomic-absorption determination has been proposed. The detection limit of the lead ionic forms is 0.03 mg/kg. The relative standard deviation in the samples with more than 0.1 mg/kg lead does not exceed 0.2.