Levels of lead in mineral salt commercial mixtures for beef cattle.

Lead concentrations was measured in samples of mineral mixtures used in beef cattle feed in the states of Sao Paulo, Paraná, Mato Grosso and Mato Grosso do Sul, Brazil. Lead content was determined by inductively coupled plasma atomic emission spectrometry. Of the 60 analyzed samples, 21 had values greater than 30 ppm (range less 1.

Detection of cadmium in mineral salt commercial mixtures for beef cattle.

The cadmium concentrations in mineral mixtures used in beef cattle feed in the states of São Paulo and Paraná, Brazil was measured. The cadmium concentration was determined by inductively coupled plasma atomic emission spectrometry. Of the 36 analyzed samples, 35 had values > 0.