寄生性線虫的調查研究工作,时常需要分离幼虫,来观察土壤的污染程度。早在1917年伯曼氏(Baermann)即曾设計伯曼分离器来进行分离。时經四十年左右,虽有若干改进,但分离装置,变化不大。目前人体寄生虫如钩虫方面的研究工作,重庆市卫生防疫站(1958)及其他工作者皆曾利用此种装置,分离土壤中的幼虫;家畜寄生虫的动物流行病学及植物寄生線虫的調查研究上,亦皆采用。国外学者,亦多应 Parasitic nematode research work, often need to separate larvae, to observe the degree of soil pollution. As early as 1917, Baermann designed the Berman splitter to separate. After about 40 years, although there have been some improvements, the separation facilities have not changed much. Current human parasites such as hookworm research work, Chongqing Municipality Health and Epidemic Prevention Station (1958) and other workers have used this device to separate larvae in soil; animal epidemiology of parasites and parasitic nematodes Survey research, are also used. Foreign scholars should also be more