以往已有多种清除组织切片中福尔马林色素的方法。1983年作者发现了又一新方法,即用丙酮—氢氧化铵溶液,在短时间内能很好地除去福尔马林色素。此法是先将石腊切片用蒸馏水充分洗涤后,浸于丙酮—氢氧化铵(丙酮50ml与28%氢氧化铵15ml)混合液中30分钟,然后用流水仔细冲洗,再进一步用蒸馏水洗涤后进行必要的染色。 In the past there have been many ways to clear formalin pigment in tissue sections. In 1983, the authors discovered a new method, that is, with acetone - ammonium hydroxide solution, in a very short period of time to remove formalin pigment. This method is to wash the paraffin section thoroughly with distilled water, then immersed in a mixture of acetone-ammonium hydroxide (acetone 50ml and 28% ammonium hydroxide 15ml) for 30 minutes, and then carefully rinsed with running water and further washed with distilled water Make the necessary stains.