Methods KCl-SDS assay and comet assay were used to test the effect of DNA damages and the content of DPC induced by liquid formaldehyde in P815 cell line.

• 方法以P815细胞为材料,温箱孵育染毒1h后,采用单细胞凝胶电泳法和KCl-SDS沉淀法检测液态甲醛染毒后细胞中DNA的断裂效应及DNA-蛋白质交联物的含量。