Ritter E J, Scott W J, Bruce L M
Biochem J. 1979 Jun 1;179(3):715-7. doi: 10.1042/bj1790715.
Values for the concentrations of deoxyribonucleoside triphosphates in rat embryos on day 12 of gestation, determined by high-pressure liquid chromatography, were artifactually two to three times as high in embryos fixed by cooling in ice/water followed by freezing on solid CO2, in 20s, as in those more rapidly/fixed in liquid N2, in 1 s.
通过高压液相色谱法测定,妊娠第12天大鼠胚胎中脱氧核糖核苷三磷酸的浓度值显示,先在冰/水中冷却20秒,然后在固态二氧化碳上冷冻固定的胚胎,其测定值比在液氮中1秒内快速固定的胚胎人为地高出两到三倍。