死后不同时间红细胞内钾离子含量分析

QUANTITATIVE ANALYSIS OF POTASSIUM ION CONTENTS IN CRYTHROCYTCS IN THE DIFFERENT POSTMORTEM INTERVAL

分析了家兔死后不同时间心血红细胞钾离子含量，红细胞内钾离含量随死亡时间增加呈线性下降。在死后０－４８ｈ，红细胞内钾离子含量与死记时间的直线回归方程为：Ｙ＝７．５６－０．０７１Ｘ或Ｘ＝１０６．４８－１４．０８Ｙ。上述规律变化，有可能对早期死亡时间的推断提供客观依据。

Potassium ion contents in erythrocytes of 40 cardie blood samples of rabbit corpses were analysed at different postmortem intervals. The erythocyte potassium ion contens decreased linearly as the PMI increased(r= -0. 829, p <0. 025) . The linear regression equation describing the relationship between RBCic(Y) and PMI(X), over the postmortem 48 hours , was Y =7. 56 -0. 071X or X = 106. 48 - 14. 08Y, where RBCK was expressed in mmol/1012RBC in hours. This relationship may provide an objective and reliable approach for the estimation of early postmortem time.