ether sedimentation ethyl

Comparison of formalin-ethyl ether sedimentation, formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques for detection of intestinal parasites. J Clin Microbiol, 13 (1981), pp. 882-884. CrossRef View in Scopus Google Scholar. 14. D. Goodman, H.J. Haji, Q.D. Bickle, et al.

Formalin-ethyl ether sedimentation, Formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques were compared using over 250 clinical parasitology specimens. Fifty positive specimens were identified, and a variety of parasites, including amoebae, flagellates, cestodes, nematodes, and trematodes, were encountered.

The formalin-Tween sedimentation method was compared with the formalin-ether sedimentation for parasitic detection. Of a total 297 fecal specimens examined, 72.1% were positive.

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 ...

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.

Abstract. Formalin-ethyl ether sedimentation, Formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques were compared using over 250 clinical parasitology …

The sedimentation technique used at CDC is the formalin-ethyl acetate technique, a diphasic sedimentation technique that avoids the problems of flammability of ether, and which can be used with …

ABSTRACT. Fecal concentration has become a routine procedure as part of the complete ova and parasite examination, particularly for human clinical specimens.

The quantitative formalin ethyl acetate concentration technique (QFEC) is another effective and more rapid method to detect and quantify intestinal helminths, e.g., ... Although it is widely accepted that formalin-ether sedimentation and related techniques are less sensitive than , one should bear in mind that a substantial portion of stools ...

Comparison of clinical results for the use of ethyl acetate and diethyl ether in the formalin-ether sedimentation technique performed on polyvinyl alcohol-preserved specimens. …

Clinical laboratories considering substituting ethyl acetate for diethyl ether in the Formalin-ether sedimentation technique should be aware of these problems and take the appropriate precautions to avoid them. A substitute for the volatile solvent diethyl ether has been actively sought for the Formalin-ether sedimentation technique. Ethyl acetate has …

Comparison of clinical results for the use of ethyl acetate and diethyl ether in the formalin-ether sedimentation technique performed on polyvinyl alcohol-preserved specimens May 1981 Journal of ...

Formalin-ethyl ether sedimentation, Formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques were compared using over 250 clinical parasitol-ogy specimens. Fifty positive specimens were …

The Midi Parasep faecal parasite concentrator, an enclosed system that employs the principle of the Ridley-Allen formol-ether sedimentation technique was …

All the positive samples were processed by both the standard methodology, i.e., formalin-ethyl acetate sedimentation technique and Mini Parasep ® SF method, by the standard operating procedure of our laboratory and the manufacturer's instruction. Stool pellet concentrates were subjected to saline/iodine wet mount, modified acid fast staining ...

A substitute for the volatile solvent diethyl ether has been actively sought for the Formalin-ether sedimentation technique. Ethyl acetate has recently been shown to be a …

Formalin-ethyl ether sedimentation, Formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques were compared using over 250 clinical parasitology specimens. Fifty positive specimens were identified, and a variety of parasites, including amoebae, flagellates, cestodes, nematodes, and trematodes, were encountered. ...

A substitute for the volatile solvent diethyl ether has been actively sought for the Formalin-ether sedimentation technique. Ethyl acetate has recently been shown to be a comparable substitute. In an effort to verify these findings and evaluate ethyl acetate under clinical conditions, comparison studies with 62 fresh human stool specimens were ...

The Midi Parasep faecal parasite concentrator, an enclosed system that employs the principle of the Ridley-Allen formol-ether sedimentation technique was used to concentrate samples for the comparison of ether and ethyl acetate . A pea-sized amount (equivalent to approximately 1 gram) of faeces was mixed with 6 millilitres (mL) of 10% …

In that study, parasitological concentration methods were compared, using ether, ethyl acetate, or d-Limonene. The efficacy of the methods that used d-Limonene or ethyl acetate was equivalent in the concentration of intestinal parasites. ... L. S. Ritchie, "An ether sedimentation technique for routine stool examination," Bulletin of the ...

Abstract. A substitute for the volatile solvent diethyl ether has been actively sought for the Formalin-ether sedimentation technique. Ethyl acetate has recently been shown to be a comparable substitute. In an effort to verify these findings and evaluate ethyl acetate under clinical conditions, comparison studies with 62 fresh human stool ...

The Formalin-ether and Formalin-ethyl acetate sedimentation procedures gave identical results for the detection of cysts, ova, and larvae, and these methods offered an advantage over the flotation ...

The performance of the centrifugal-sedimentation processes compared with other techniques/methods was reported by Yanet et al. They described the formalin …

Study with Quizlet and memorize flashcards containing terms like ECOFRIENDLY fecal fixative: A. Formalin B. Schaudin C. PVA D. Merthiolate-Iodine-Formalin, The formalin-ether (ethyl acetate) concentration procedure for feces is used to demonstrate:* A. Motility of helminth larvae B. Protozoan cysts and helminth eggs C . Formation of amoebic …

One hundred fecal specimens preserved in polyvinyl alcohol fixative were examined by the Formalin-ether sedimentation technique with ethyl acetate substituted for diethyl ether. Technical performance of the procedures, appearance and amount of sediment obtained, and organism morphology were comparable. Also, ethyl acetate is less flammable and ...

The re-evaluation of several aspects of formalin-ether sedimentation (FES) method suggested that the modified FES is effective and better for the recovery of parasite ova in areas of low-intensity parasitic infection. The formalin-ether sedimentation (FES) method is considered as reliable method of fecal examination for the detection of parasites.

Principle of Formal ether (Formalin-Ethyl Aceatate) sedimentation technique Sedimentation techniques use solutions of lower specific gravity than the parasitic organisms, thus concentrating the latter in the sediment. It takes advantage of the high specific gravity of protozoan cysts and helminth eggs compared to water.

Merthiolate-iodine-formalin, The formalin-ether (ethyl acetate) concentration procedure for feces is used to demonstrate: a. Motility of helminth larvae b. Protozoan cysts and helminth eggs c. Formation of amoebic pseudopods d. Trophozoites, Layers obtained in the formalin ether sedimentation technique (top to bottom): a.

The Formalin-ether and Formalin-ethyl acetate sedimentation procedures gave identical results for the detection of cysts, ova, and larvae, and these methods offered an advantage over the flotation ...

Ethyl acetate appears to be a satisfactory subsitute solvent for diethyl ether in the Formalin-ether sedimentation technique and is less flammable and less hazardous to use than dietHyl ether. Ethyl acetate appears to be a satisfactory subsitute solvent for diethyl ether in the Formalin-ether sedimentation technique. In comparative studies, …