A new technique of blood thallium direct determination based on graphite furnace
atomic absorption spectrometry with Zeeman background absorption correction system was
designed. The developed technique does not require sample digestion. Sample treatment
includes only a fivefold per volume dilution of blood sample with 0.1% (m/v) Triton X-100.
L’vov integrated platform was modified with 400 μg of Rh. Matrix modifier (200 μg
NH4NO3 and 160 μg Pd(NO3)2) was suggested for coping chloride and blood organic matter
interferences. Standard reference material (Clincheck® Plasma Control for trace elements)
analysis was used for validation. Additional validation was performed by analyzing spiked
blood samples in the whole dynamic range. The dynamic range was 2–50 μg/L. Precision
(RSD) was found