Lye is a corrosive alkaline substance‚ commonly sodium hydroxide (NaOH‚ also known as ’caustic soda’) or historically potassium hydroxide (KOH‚ from hydrated potash). Previously‚ lye was among the many different alkalis leached from hardwood ashes.[1] Today lye is commercially manufactured using a membrane cell method. Solid dry lye is commonly available as flakes‚ pellets‚ microbeads‚ and coarse powder. It is also available as solution‚ often dissolved in water. Lye is valued for its use in food
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Description for Using Malaria Rapid Diagnostic Test (mRDTs) The procedure of the test as contained in the manufacturer’s instructions as approved by the National guidelines for diagnosis and treatment of malaria‚ (FMoH‚ 2011) will be followed. its reliability was futher proven by Olaniyan‚ et al.‚ (2013). The RDT provided for the study has LOT number and expiry date which must be recorded. Preferably RDT of known quality assurance will be used. The device usually contains a cassette‚ an applicator
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Drugs screen using Thin Layer Chromatography of basic illicit drugs Abstract The majority of evidence submitted to crime labs comes from drug-related crimes. Often‚ this evidence includes unidentified powders that may be illegal drugs. In order to prosecute individuals for possession of illegal substances‚ it is necessary for forensic scientists to positively identify any suspected drugs submitted to the laboratory. In addition‚ forensic toxicologists must determine the identity
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A 0.8% agarose gel was used as the medium for the DNA solutions because it has a better separation of large DNA fragments due to the larger pores throughout the gel. The electrodes on each end of the apparatus allowed the fragments to migrate across the gel. The opposite end of the DNA-containing wells has a positively charged electrode that attracts the DNA‚ which is negatively charged
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is monitored using pyranine‚ a fluorescent pH indicator. The response of the liposome biosensor to the substrate acetylthiocholine chloride is relatively fast and reproducible‚ while the system is stable as has been shown by immobilization within sol–gel. © 2004 Elsevier B.V. All rights reserved. Keywords: Encapsulation; Liposomes; Fluorescent probe; Biosensor; Acetylcholinesterase 1. Introduction Liposomes are nanoscale spherical shells composed of lipid bilayers that enclose an aqueous phase.
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RESULT: SampleReading | 4A | 4B | 4C | AVERAGE | Weight of crucible (g) | 53.8242 | 60.9377 | 56.7898 | 57.1869 | Weight of crucible+ sample (g) | 56.0800 | 63.0159 | 59.3516 | 59.4825 | Weight of sample (g) | 2.2558 | 2.0782 | 2.5527 | 2.2956 | Weight of crucible + sample after 1 day (g) | 53.8813 | 60.9910 | 56.8657 | 57.2460 | Weight of ash (g) | 2.1987 | 2.0249 | 2.4859 | 2.2365 | Percentage of ash (%) | 2.5313 | 2.5647 | 2.6168 | 2.5709 | CALCULATION: % of ash = weight of sample
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[pic] TAKEING THE MYSTERY OUT OF THE TXV The thermostatic expansion valve has been considered by some to be a mysterious and complex device. As a result‚ many valves are needlessly replaced when the cause of the system malfunction is not immediately recognized. Actually the thermostatic expansion valve performs only one very simple function. –it keeps the evaporator supplied with enough refrigerants to satisfy all load conditions. It is not a temperature control‚ suction pressure control
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Thin Layer Chromatography Submitted in partial fulfillment of the requirements for: CHE 324 Organic Chemistry Laboratory Dr. Robert Duncan Fall Semester 2012 Caitlin Inman‚ Team Leader October 9‚ 2012 Tyler Byrd‚ Data Collection Shared Role‚ Technique Expert Introduction: “Chromatography is used to separate components of a mixture. For example‚ imagine a mixture of wood pieces‚ pebbles‚ and large rocks to be separated and the chromatography setup as a stream. Flowing water
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method is used. Gold top tubes contain Serum Separator Gel which are used for chemistry‚ immunology and serology tests and requires 5-6 inversions. Light blue tubes contain sodium citrate which are used for coagulation tests and only requires 3-4 inversions. Black top tubes on the other hand contain buffered sodium citrate which are used for erythrocyte sedimentation rate and requires 8-10 times inversions. Red plastic tubes which contain silica enhances clot formation and are used also for chemistry
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Polymeric Biomaterials (Mingyu Li z3369978) The use of polymers in biomedical applications is now widely accepted and they are termed with the generic name of polymeric biomaterials. A biomaterial can be defined by their function as a material in contact with living tissue that used to the treatment of disease or injury‚ and to improve human health by restoring the function of tissue and organs in the body.x Polymeric biomaterials in medicine include surgical sutures‚ drug delivery vectors‚ orthopedic
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