{{No footnotes|date=July 2020}} A '''collodion bag''' is a [[Membrane (selective barrier)|membrane]] used to filter or concentrate substances, often proteins, using pressure. It usually takes the form of a small finger shaped receptacle hooked up to a [[positive pressure]] pump. The bag has a characteristic that allows small particles, like water or unbound [[ion]]s, to flow out while retaining larger particles in the bag.
==References== {{reflist}}
==Further reading== *[https://books.google.com/books?id=W3DLDwAAQBAJ&dq=Collodion+bag&pg=PR21 Modern Techniques in Cytopathology] *[https://books.google.com/books?id=Sunpq5MN0y0C&dq=Collodion+bag&pg=PA40 Can't Live Without it: The Story of Hemoglobin in Sickness and in Health] *[https://www.google.com/search?rlz=1C1CHBF_en-GBGB885GB885&biw=1536&bih=754&tbm=bks&sxsrf=ALeKk0212GURDviWlJJbL8xOZNjls9pJpw%3A1593869345609&ei=IYQAX5DvJNWT8gLNpLiIAg&q=Colloidion+bag&oq=Colloidion+bag&gs_l=psy-ab.3...377.1488.0.1794.13.6.0.0.0.0.244.244.2-1.1.0....0...1c.1.64.psy-ab..12.1.243.0..0.0.5dCpwGBaW4U Colloidion bag - Google Search]
{{DEFAULTSORT:Colloidion Bag}} [[Category:Microbiology equipment]]
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