Comparative Evaluation of a Modified Zinc Sulfate - Journal of ...

Dec 12, 1977 ... A modified zinc sulfate flotation technique using Formalinized fecal specimens. (F-ZnSO4) was compared to the Formalin-ether (FE) concentration method for the laboratory diagnosis of intestinal parasites. ... advantages of the FE technique and has been employed routinely in the Indiana University.

Comparison of Formalin-Ethyl Ether Sedimentation, Formalin-Ethyl ...

Dec 9, 1980 ... zinc sulfate flotation techniques were compared using over 250 clinical parasitol- ogy specimens. Fifty positive ... methods offered an advantage over the flotationprocedure for the detection of selected ova. However, the zinc ... enhanced by the use of concentration proce- dures. Theconcentration...

Zinc Sulphate flotation method

Advantages: Zinc sulphate centrifugal flotation technique is useful for the recovery of protozoan cysts and helminthes eggs. Disadvantages: Large trematode eggs, some tape worm eggs, and infertile Ascaris lumbricoides eggs are not concentrated by this method. Raed Z. Ahmed, Medical Parasitology Lab.,2012-2013.

3-Concentration-Techniques-sedimentation

Advantages. Useful for the observation of motile protozoan trophozoites. Disadvantages. May not detect ova, cysts and larvae which are present in scant numbers. In most cases Samples ... Saturated Salt Solution technique; Sheather's Sugar Centrifugal Flotation technique; Zinc Sulphate Centrifugal Flotation technique.

Comparison of formalin-ethyl ether sedimentation ... - NCBI - NIH

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 procedure for the detection of selected ova. However, the zinc sulfate procedure was more effective for the detection of...

Fecal Examination Techniques - Clinician's Brief

Advantages. Rapid screening of fecal material with the abil- ity to observe motile trophozoites that may be distorted and killed in hypertonic flotation solu- tions. Disadvantages. The small volume of feces renders sensitivity ... able and zinc sulfate has been considered the best solution for recovery of Giardia species cysts.

Zinc Sulfate Centrifugal Flotation Method - Scribd

Zinc Sulfate Centrifugal Flotation Method - Download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online. ... ZnSO4 to 1 liter of water. they do not take in the iodine) PARASEP Ò METHOD Parasep Ò is a commercial kit for faecal parasite concentration.18 sp. will sink but the fat and other material will float.

Techniques - Penn Vet CAL

Techniques Pg. 4. ZINC SULFATE CENTRIFUGAL FLOTATION METHOD. 1. Fill a 15 ml centrifuge tube with ZnSO4 solution (1.18 specific gravity) and pour into a. 1 glass dish or plastic specimen cup. 2. Using a tongue depressor, push the feces (2 to 5 grams, a piece the size of a large grape) through the strainer into the...

CDC - DPDx - Diagnostic Procedures - Stool Specimens

Nov 14, 2016 ... Flotation techniques (most frequently used: zinc sulfate or Sheather's sugar) use solutions which have higher specific gravity than the organisms to be floated so that the organisms rise to the top and the debris sinks to the bottom. The main advantage of this technique is to produce a cleaner material than...

Improving the Detection of Intestinal Parasites Using Centrifugal ...

Comparison of three concentration methods for the recovery of canine intestinal parasites from stool samples. Exp Parasitol 2010; 126(2): 214-6. Zajac A, Johnson J, King S. Evaluation of the importance of centrifugation as a component of zinc sulfate fecal flotation examinations. J Am Anim Hosp Assoc 2002; 38: 221-224.

Comparison of common fecal flotation techniques for the ... - CiteSeerX

er methods. Proper technique is critical, including ensuring that the specific gravity of the flotation solution is correct and allowing the sample to stand for a sufficient amount of time ... used, each with its own advantages and limita- tions. Direct fecal smears are ... sulfate (MgSO4; SG 1.20), and zinc sulfate (ZnSO4; SG 1.20).

Veterinary Parasites - Nemaplex

Jan 7, 2011 ... Negative results are inconclusive, perform a concentration technique such as flotation on all samples that are negative direct smear. Make sure that the sample ... The most commonly used flotation fluids are magnesium sulfate (Epsom salts), sugar, sodium nitrate, and zinc sulfate. A specific gravity from 1.2...

Sheather's Sugar Flotation Solution

Common Flotation Media: Zinc Sulfate 1.18 sp. gr. Sodium Nitrate 1.18 sp. gr. Basic Physics: If an ova has a higher specific gravity than the flotation solution, it will not float nor will it be detected. . . J-1028. 500ml bottle. J-1028g. Gallon size bottle. JorVet offers a comprehensive line of fecal centrifugation technique products.

Froth flotation - Wikipedia

By 1904, the MacQuisten process (a surface tension based method) was developed but this would not work when slimes were present. In 1910, when the Zinc Corporation replaced its Elmore process with the Minerals Separation "air froth flotation" process at its Broken Hill plant, the primacy of the Minerals Separation over...

Froth Flotation Process - 911 Metallurgist

Mar 25, 2017 ... The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on .... it became clear that froth flotation could save the 'extremely fine free mineral' in the slime, with a higher recovery than even gravity concentration could...

Evaluation of Sugar Flotation and Formalin-Ether Concentration ...

Evaluation of Sugar Flotation and Formalin-Ether. Concentration Techniques in the Examination of. GI Parasites of Refuge Dogs and Cats in Kanchanaburi Province, Thailand. Wichit Rojekittikhun1, Aongart Mahittikorn2, Samrerng Prummongkol3,. Supalarp Puangsa-art4, Kittipong Chaisiri1, Teera Kusolsuk1. 1 Department...

Concentration techniques for feacal examination - SlideShare

Nov 19, 2013 ... Stool examination Qualitative technique Quantitative technique - Direct smear method of Beaver - Stoll's dilution egg count - Kato-Katz technique Unconcentration technique Concentration technique - Simple smear Flotation technique - Brine flotation - Sugar flotation - Zinc-sulfate flotation Sedimentation...

Objectives Discussion References Summary CONCENTRATION OF ...

effectiveness of three stool concentration methods. [formalin ethyl acetate concentration (FEAC), ... major advantage of Feconomics. ® . * Correspondence: Özgür KURT ... Fomalin-Ethyl acetate sedimentation, and zinc sulfate flotation techniques for detection of intestinal parasites. J Clin Microbiol, 13 (5):882-884. 6. Kurt Ö...

Low Sensitivity of the Formol-Ethyl Acetate Sedimentation ... - PLOS

Feb 24, 2009 ... Formol-ethyl acetate sedimentation concentration is a technique for detecting eggs in stool by microscopy, but has not to our knowledge been evaluated for ... of formalin-ethyl ether sedimentation, formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques for detection of intestinal parasites.

Comparative study of five techniques for the diagnosis of canine ...

0.467 (Moderate), and 0.325 (Fair) of the Spontaneous-Sedimentation, Centrifugal-Flotation in Saturated Zinc Sulfate. Solution, Centrifugal-Flotation in Saturated Sugar Solution, and Spontaneous-Flotation in Saturated Sodium Chloride. Solution ... the high parasite concentration technique for this same diagnostic modality...

Comparative study of five techniques for the diagnosis of canine ...

0.467 (Moderate), and 0.325 (Fair) of the Spontaneous-Sedimentation, Centrifugal-Flotation in Saturated Zinc Sulfate. Solution, Centrifugal-Flotation in Saturated Sugar Solution, and Spontaneous-Flotation in Saturated Sodium Chloride. Solution ... the high parasite concentration technique for this same diagnostic modality...

Fecal flotation for detecting parasite burdens in faeces. - Pet-Informed

They can sometimes be detected on fecal floatation, especially zinc sulfate fecal flotation. 2. Dog and Xinhai protozoan .... Spirometra ('zipper worm') eggs can sometimes be detected on fecal flotation, however, the technique of choice for detecting the eggs of this tapeworm is faecal sedimentation. Certain Acanthocephala...

Feasibility of flotation concentration of fungal spores as a method to

Dec 16, 2014 ... Methods: In our study, mycologist-identified toxigenic (poisonous) and nontoxigenic fresh mushrooms were collected in North Carolina, USA. In phase 1, quantitative spore recovery rates were determined following magnesium sulfate, modified Sheather's sugar solution, and zinc sulfate flotation (n=16...

International Journal of Phytopharmacology

and high sensitivity of gasoline, this new method should be used as an alternative choice for formal-ether concentration method which is considered ... advantages including less alteration to organisms and increased .... sedimentation, and zinc sulfate flotation techniques for detection of intestinal parasites. J Clin Microbiol...

Evaluation of Different Techniques of Stool Examination for Intestinal ...

2004;Cappello,2004).The usual methods that are used for detection of intestinal parasites from stool specimens are the direct wet mount using saline and iodine, but the detection can be enhanced through using concentration procedures such as salt floatation, zinc sulphate centrifugal floatation, formal ether concentration.

Optimal Fecal Assessment

tion solution and the method of concentration (ie, standing or centrifugal). Solutions used for flotation include sugar. (Sheather solution), magnesium sulfate (35%), zinc sulfate. (33%), and sodium chloride.1,2 Sugar solution is considered ideal for isolation of most eggs and oocysts. It has the advantage of not crystallizing...

Parasitology

Sep 8, 2011 ... Advantages a. Ability to prepare permanent stained smears and perform concentration techniques b. Good preservation of protozoan trophozoites and ...... Specimens: Concentration by Zinc. Sulfate Flotation. PREANALYTICAL CONSIDERATIONS. I. PRINCIPLE. The flotation procedure permits the sepa-.

Zinc processing | Britannica.com

The small fraction of zinc sulfide minerals present in the ore makes beneficiation necessary in order to produce a concentrate suitable for treatment. The most common method for accomplishing this concentration is to isolate the sulfide mineral from the impure constituents, or gangue, by flotation separation. In this process...

A Comparative Study of Concentration Techniques for Detection of ...

age group of people in this tribal area and to determine the best concentration technique to identify maximum number of ... (a) Brine concentration flotation technique (b) Zinc sulphate flotation technique. (c) Formal ..... However, it had the advantage of being able to provide a quick diagnosis of a heavily infected specimen.

50 stool examination - NIOS

50.1 INTRODUCTION. Stool examination is carried out in laboratories for various diagnostic purposes. It is a specimen which is easily obtained but, they may however be a reluctance on the part of the patient to give the stool specimen due to its offensive nature and foul smell. Mostly a clean container which does not...

PRACTICAL HELMINTHOLOGY

The advantage of acids used in this technique is their ability to ... ii- Zinc Sulfate Centrifugal Flotation Method : some helminthic eggs (operculated and un-fertilized Ascaris eggs) will not float in zinc sulfate but sink to the bottom. So, if zinc sulfate is the only concentration method used, both the surface film and the sediment.

Giardia - A GI Parasite with Many Faces - VSPN

In a recent study performed at Kansas State University the ProSpect Giardia rapid Assay test showed considerably lower sensitivity than the zinc sulfate flotation procedure. The advantage of the fecal ELISA is that it doesn't take a trained microscopist to read it. This is a huge plus for the folks in labs testing human samples...

US20110165059A1 - Production of zinc sulphate concentrates from ...

Many types of zinc ores can be readily dissolved in sulphuric acid, either directly, or after pre-treatment, such as concentration through flotation followed by oxidation, to render the zinc more ... The most common method for the recovery of zinc from a zinc sulphate solution is by the conventional zinc electrowinning process.

Full Article - Hemo-De

The salinefHemo-De concentration procedure has the advantage of using nontoxic saline in place of formaldehyde. ... CONCENTRATION METHOD USING 0.85% SALINE AND. HEMO-DE ON PRESERVED FECAL ..... mentation, and zinc sulfate flotation techniques for detection of intestinal parasites. J Clio Microbial 198...

Differential flotation of copper-zinc at Prieska Copper Mines - SAIMM

which is of significance, whether the cyanide is com- plexed with zinc sulphate or with metal ions derived from the pulp. The concentration of the cyanide ion ... taken advantage of at Lake George Mines, N.S.W.. The Department of Mineral Engineering,. University of Utah23 obtained a seventy percent improvement in copper...

Zinc Recovery From Lead–Zinc–Copper Complex Ores by Using ...

Jul 20, 2011 ... This achievement of column flotation method was recommended as an alternative method for the zinc circuit to the plant mentioned above, since it will reduce the operating costs. ... Flotation is a selective separation process that is widely used for the concentration of low-grade complex Pb–Cu–Zn ores.

Comparison of Zinc Sulphate/Formalin Ether | Apacor

The zinc sulfate flotation technique as developed by Faust et al and Tobie et al(2) has been widely used and considered highly effective. It was the first stool concentration method that acceptably fulfilled the dual role of recovering both eggs and cysts. Recently, a formalin-ether sedimentation procedure(3) has been...

Just Ask the Expert: What fecal analysis method do you use?

Oct 1, 2010 ... Centrifugal fecal flotation using Sheather's sugar solution is considered the gold standard method for detecting most, if not all, veterinary helminth ... In fact, because of the differences in specific gravity, zinc sulfate rather than Sheather's sugar solution is recommended for isolating Giardia species cysts.

McMaster Method Solutions

Does not float significant debris. ▫ Magnesium sulfate – Epsom salts [Also, can use Zinc Sulfate, can purchase solution at sp.g. = 1.18]. ▫ If make your own, requires determination of specific gravity – can set between 1.0 and. 1.3. ▫ Protects the thinner shelled objects from dehydration. ▫ Has the advantage that can adjust...

The FLOTAC system for the diagnosis of intestinal parasites

Jun 10, 2011 ... Faecal Egg Count (FEC) techniques are considered relatively straightforward and protocols such as the McMaster technique and flotation/sedimentation concentration methods in the veterinary field have been available for many years. Kato-Katz technique. Advantages. - Simplicity and low cost.

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