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大鼠血清中存在 VX 非氧化代谢酶。经溴化钾密度梯度超离心分离大鼠血清得到8层制品。VX 非氧化代谢酶主要分布于第4层,而梭曼水解酶及对氧磷水解酶主要分布于第3层。冻融使 VX 非氧化代谢酶活性丧失,但不影响对氧磷水解酶的活性。
VX non-oxidative metabolic enzymes exist in rat serum. Separation of rat serum by potassium bromide density gradient ultracentrifugation yielded 8 layers of product. VX non-oxidative metabolic enzymes are mainly distributed in the fourth layer, and soman hydrolase and paraoxonase are mainly distributed in the third layer. Freezing and thawing makes VX non-oxidative metabolic enzyme activity loss, but does not affect the paraoxonase activity.