- Ethyl acetate as a substitute for diethyl ether in the formalin-ether sedimentation technique.
Ethyl acetate as a substitute for diethyl ether in the formalin-ether sedimentation technique.
Journal of clinical microbiology (1979-12-01)
K H Young, S L Bullock, D M Melvin, C L Spruill
PMID574877
ABSTRACT
Ethyl acetate appears to be a satisfactory subsitute solvent for diethyl ether in the Formalin-ether sedimentation technique. In comparative studies, concentration of organisms with ethyl acetate was equal to or greater than that with diethyl ether. No distortion or alteration of morphology was observed with eigher solvent, and preparations were comparable in appearance and ease of examination. In addition, ethyl acetate is less flammable and less hazardous to use than diethyl ether.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
Diethyl ether, puriss., contains ~5 mg/L 2,6-di-tert.-butyl-4-methylphenol as stabilizer, meets analytical specification of Ph. Eur., BP, ≥99.5% (GC)
Sigma-Aldrich
Ethyl acetate, puriss., meets analytical specification of Ph. Eur., BP, NF, ≥99.5% (GC)