ResultsIt is found that post-freezing sampling may cause net increase 0.34% of BWC by comparing the fresh brain tissue, measured with SG.

• 通过SG检测不同采样方法脑组织比重的变化，发现冷冻后再取样可造成组织含水量净增加0.；34%25。 与常规干湿重法比较，SG法使测量的离散度减少50%25。