Wiesböck J, Josephi E, Liebhardt E
Beitr Gerichtl Med. 1989;47:403-5.
In cases of sudden death with known postmortem interval multiple determinations of potassium concentration in the cerebrospinal fluid at defined intervals were done. The values of intraindividual potassium levels were compared to a regression-line obtained in a former investigation from 76 determinations of 76 different bodies. Estimation of postmortem interval by extrapolation of potassium levels to zero time of change is not reliable.
在已知死后间隔时间的猝死案例中，按规定间隔多次测定脑脊液中的钾浓度。将个体内部的钾水平值与之前对76具不同尸体的76次测定所得到的回归线进行比较。通过将钾水平外推至变化的零时间来估计死后间隔时间并不可靠。
