...In the early stages of this investigationclarification of the formolized extract was accomplished by the samesort of filtration...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...Formalin caused slight denaturationof some of the proteins, but this effect was completewithin a few hours, after which any denatured material was removedby filtration or centrifugation...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
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