title: Comparison between the Midi Parasep and Midi Parasep Solvent Free (SF) faecal parasite concentrators.
abstract: OBJECTIVE
  To compare the recovery of parasites in faecal samples using the Midi Parasep with ethyl acetate and Midi Parasep Solvent Free (SF) faecal parasite concentrators.
  
  
  METHODS
  23 preserved and 11 fresh faecal samples were microscopically examined for the presence of parasites using the Midi Parasep concentrator with ethyl acetate centrifuged for 1 and 3 min and the Midi Parasep SF concentrator.
  
  
  RESULTS
  The Midi Parasep SF faecal parasite system recovered significantly fewer ova and cysts and resulted in a notably larger deposit than the Midi Parasep concentrator with ethyl acetate.
  
  
  CONCLUSIONS
  Parasites present in small numbers that would be detected using the Midi Parasep concentrator with ethyl acetate could be missed using the SF faecal parasite system.
authors.affiliation: Department of Clinical Parasitology, UKNEQAS Parasitology, Hospital for Tropical Diseases, London, UK.
authors.forename: Agatha C
authors.initials: AC
authors.lastname: Saez
authors.forename: Monika M
authors.initials: MM
authors.lastname: Manser
authors.forename: Nick
authors.initials: N
authors.lastname: Andrews
authors.forename: Peter L
authors.initials: PL
authors.lastname: Chiodini
mesh_terms: D000085:Acetates / Q000737:chemistry; D000818:Animals; D004867:Equipment Design; D005243:Feces / Q000469:parasitology*; D006801:Humans; D010270:Parasite Egg Count; D010271:Parasites / Q000302:isolation & purification*; D015203:Reproducibility of Results; D012997:Solvents / Q000737:chemistry; D013048:Specimen Handling / Q000295:instrumentation*
chemical_list: D000085:Acetates; D012997:Solvents; C007650:ethyl acetate