Distribution of 8 trace metals in beef heart tissue.

The concentrations of 8 trace metals in 15 discrete anatomic sites of 11 beef hearts have been determined by emission spectrometry. The metals determined were copper, aluminum, barium cesium, tin, strontium, lead, and molybdenum. Anatomic sites samples included aorta, main pulmonary artery, tricuspid valve, mitral valve, right and left coronary arteries, os cordis, right atrium, left atrial appendage, right and left ventricles (free wall), left ventricle-papillary muscle, interventricular septum, crista supraventricularis, and left bundle branch. Statistical analysis of the data incorporated a multivariate analysis of variance and a Duncan analysis. The results showed that many tissues of the beef cardiovascular system have distinctive trace metal compositions.