Automated staining equipment that can mix reagents is used to spray a Romanowsky stain onto slide mounted specimens which are then briefly centrifuged. The centrifugation step removes excess stain leaving only a thin film. Depending on the time of the centrifugation step, most of the organic solvent and part of the water in the stain are evaporated by airflow through the equipment. This greatly accelerates the staining reaction and preserves water soluble structures such as the granules in basophilic leukocytes. For optimal performance, this staining procedure requires a thiazin-eosin stain with about 90% to about 40% organic solvent, such as methanol, and only about 10% to about 60% water. This is a unique staining reagent in Romanowsky staining.
自动染色设备可以混合试剂,用于喷洒罗曼诺夫斯基染色剂到载玻片标本上,然后对其进行短暂离心。离心步骤会去除多余的
染料,只留下一层薄膜。根据离心步骤的时间,
染料中的大部分有机溶剂和部分
水分会被设备中的气流蒸发。这极大地加速了染色反应,并保留了
水溶性结构,如嗜碱性白细胞中的颗粒。为了达到最佳效果,这种染色程序需要一种含有约90%至40%有机溶剂(如
甲醇)和仅约10%至60%
水的
噻唑-
苏丹红染料。这是罗曼诺夫斯基染色中独特的
染料。