perform approximately 60 prostate biopsies a year. Free PSA (cost activity / object) is available on equipment that we currently use under a reagent rental agreement (we pay only for reagents‚ as the cost of the equipment is rolled into the cost of the reagents). The vendor has quoted a price of $8.00 per test (not $8.00 per billable test) for free PSA reagents. Issues to consider in evaluating the profitability of bringing the test ( Free PSA ) in house:1.Effect on direct cost. 2.Possible increase
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Nucleophillic Substitution Reaction Introduction: This lab experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol (SN1) Bromobenzene NR NR Bromocyclopentane X 2 sec
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Objectives 1. To prepare a standard curve of absorbance versus protein concentration by using Bovine Serum Albumin (BSA) 2. To determine BSA concentration in two sample solutions 3. To determine protein concentration in apple juice. Materials Bradford reagent‚
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| | H R R Primary Alcohol(1 ̊) Secondary Alcohol(2 ̊) Tertiary Alcohol(3 ̊) Lucas reagent‚ a mixture of concentrated hydrochloric acid and anhydrous zinc chloride‚ can be used to differentiate the three classes of alcohols. Tertiary alcohol turns cloudy or appears in two layers almost immediately‚ secondary alcohol reacts within 5 to 10
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Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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similarities between this group of elements. Hypothesis: Those elements in the same row will exhibit different properties while elements in the same columns will exhibit the same properties. Materials: 24-well chem plate or plastic sheet reagents 0.1 M K4Fe(CN)6 0.1 M KSCN 0.1 M NaCl 0.1 M Na2SO4 0.2 M (NH4)2C2O4 1.0 M HNO3 thin-stemmed pipets or dropper bottles for solutions‚ 10 transition elements 0.1 M Cu(NO3)2 0.1 M Fe(NO3)3
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of the protein wherein the secondary‚ tertiary and quaternary structures are all affected. Denaturation is brought about by various kinds of physical and chemical means; this includes the addition of strong acids‚ heavy metal cations‚ alkaloidal reagents‚ salting out and addition of organic solvents. Precipitation is commonly observed when a protein is denatured. The experiment was done to explain the principles behind each method of denaturing proteins. In addition of strong acids to protein solution
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In Vitro Diagnostic (IVD) Market [Instruments‚ Reagents & Data Management Systems] [Technique (Immunoassay‚ Clinical Chemistry‚ Molecular Diagnostics‚ Hematology) & Applications (Diabetes‚ Infectious Diseases‚ Cancer & Cardiology)] Systems‚ End Users] Forecast To 2017 On 13rd June 2014 The report focuses on "In Vitro Diagnostic (IVD) Market [Instruments‚ Reagents & Data Management Systems] [Technique (Immunoassay‚ Clinical Chemistry‚ Molecular Diagnostics‚ Hematology) & Applications (Diabetes
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the carbohydrate by concentrated sulfuric acid to produce an aldehyde which condenses with two molecules of phenol‚ resulting in a coloured compound. Molisch reagent is a solution of α-napthol in 95% ethanol. The aldehydes produced are pentoses and hexoses which can derive to furfural and hydroxymethyl furfural respectively. The Molisch reagent further reacts with furfural to yield a coloured product which is a deep violet ring at the interface of two layers. The reaction occur at the junction where
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References: 1. Kroner‚ R. C.‚ Longbottom‚ J. E.‚ Gorman‚ R.A.‚ "A Comparison of Various Reagents Proposed for Use in the Winkler Procedure for Dissolved Oxygen"‚ PHS Water Pollution Surveillance System Applications and Development‚ Report #12‚ Water Quality Section‚ Basic Data Branch‚ (July 1964). 2. Annual Book of ASTM Standards‚ Part 31‚
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