Kasperek K, Kiem J, Iyengar G V, Feinendegen L E
Sci Total Environ. 1981 Feb;17(2):133-43. doi: 10.1016/0048-9697(81)90179-0.
The differences in concentrations of cesium, cobalt, iron, mercury, rubidium, selenium and zinc between serum and plasma were examined with the aid of instrumental neutron activation analysis. Eighty serum and plasma samples obtained from 13 donors were compared. Serum was prepared in plastic tubes immediately after clotting, and plasma was separated with heparin as anticoagulant. No significant differences in the concentrations of cesium, cobalt, mercury and selenium were observed. However, the concentrations of iron, rubidium and zinc were significantly higher in serum than in plasma. The average differences were 322, 12 and 20 ng/ml for iron rubidium and zinc, respectively. The average differences found for cesium, rubidium and zinc were far below that which can be expected from a complete, or considerable release of these elements from platelets which aggregate or disintegrate during the clotting process in preparing serum.
借助仪器中子活化分析法，检测了血清和血浆中铯、钴、铁、汞、铷、硒和锌浓度的差异。比较了从13名献血者采集的80份血清和血浆样本。血清在凝血后立即在塑料管中制备，血浆以肝素作为抗凝剂进行分离。未观察到铯、钴、汞和硒浓度有显著差异。然而，血清中铁、铷和锌的浓度显著高于血浆。铁、铷和锌的平均差异分别为322、12和20 ng/ml。铯、铷和锌的平均差异远低于在制备血清的凝血过程中血小板聚集或解体时这些元素完全或大量释放所预期的差异。
