一、光密度计的发展趋势扫描光密度计最先用于纸层析,1951年即有报导,后来逐渐扩大应用于薄板层析 TLC 和电泳凝胶。商品化的光密度计出现在五十年代中期。三十余年来,随着薄层层析技术和电冰技术的不断发展和日益广泛的应用,各国仪器厂商竞相研制,新型号不断问世。1979年美国出版的<光密度测量技 First, the development trend of densitometer Scanning densitometry was first used in paper chromatography, which was reported in 1951, and later gradually expanded for TLC and electrophoresis gel. Commercial densitometers appeared in the mid-1950s. More than thirty years, with the continuous development of thin-layer chromatography and electric ice technology and the increasingly wide range of applications, equipment manufacturers in various countries competed for the development of new models. The United States in 1979 published "optical density measurement technology