Electrothermal vaporization dynamic reaction cell inductively coupled plasma mass spectrometry for the determination of Fe, Co, Ni, Cu, and Zn in biological samples.

摘要: Slurry sampling electrothermal vaporization dynamic reaction cell inductively coupled plasma mass spectrometry (ETV-DRC-ICP-MS) has been applied to determine Fe, Co, Ni, Cu, and Zn in biological samples. The influences of instrument operating conditions slurry preparation on the ion signals were reported. Pd was used as modifier. effectiveness ETV sample introduction technique alleviating various spectral interferences ICP-MS analysis demonstrated. This method NIST SRM 1573a tomato leaves reference material NRCC DORM-2 dogfish muscle also real samples such a tea swordfish purchased locally. Since sensitivities elements studied aqueous solution different, an analyte addition for determinations. analytical results materials agreed with certified values. precision between replicates better than 6% all detection limit estimated from curves 0.01, 0.006, 0.007, 0.004, 0.006 microg g(-1) Zn, respectively, original