编辑同志: 本刊二卷七期、三卷八期、四卷六期及五卷五期中曾陆续登载了福尔马林沉淀的产生问题及其处理方法。可是在这些方法中,如像蒸馏法需将蒸出的甲醛再溶于水中使成一定的浓度,这在医院中易受条件限制,不使蒸馏。加碳酸钠法又嫌时间太长,而且在冬天要久置温暖处,亦感不便。加酸法又怕会腐蚀标本。因 Editor’s Comrade: The second volume of seven volumes, three volumes of eight, four volumes of six and five volumes of five have been published formalin precipitation and its processing methods. However, in these methods, such as the distillation method, the distilled formaldehyde needs to be redissolved in water to a certain concentration, which is easily confined in the hospital without distilling. Add sodium carbonate and too long for too long, but also in the winter long warm place, but also feel inconvenience. Adding acid method afraid of corrosion specimens. because