DILUTIONS AND STANDARDS Many of the laboratory procedures involve the use of dilutions. It is important to understand the concept of dilutions‚ since they are a hand tool used throughout all areas of the clinical laboratory. These dilutions have to be considered as they make a quantitative difference in what is going on. First‚ there are several terms used in expressing dilution: 1. "Dilution: - Dilutions are expressed as the ratio of the quantity of a desired solute (serum‚ urine‚ chemical solution
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CONCENTRATION AND DILUTION Physiology 1‚ Las Positas College Name: In science‚ concentration is a measure of the number of particles (solutes) in a given volume. If one room has 100 people in it‚ and a room of equal size has 50 people‚ one can say that the concentration of people in one room is twice that of the other. Quite simple‚ isn’t it? On a molecular level‚ consider whether you put one lump or two of sugar‚ or no sugar at all‚ in your coffee. If you use two lumps‚ you prefer twice
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Application to high courts: (5) Dispatch of notice to share holders and creditors: (6) Holding of meetings of share holders and creditors: (7) Petition to High Court for confirmation and passing of HC orders: (8) Filing the order with the registrar: (9) Transfer of assets and liabilities: (10) Issue of shares and debentures: Role of Investment banker in M&A * They help in organising mergers. * They help target companies to develop and implement defensive tactics. * They help in
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Analyzing Data Using Pivot Tables – An Example Remember assignment 5 where you were asked to compare Invoice amounts to Sales Order amounts? You had to create a query to join together 2 tables from an Access database. If the results of that query had been downloaded into an Excel file (a simple thing to do)‚ you could have used the Excel file and a Pivot table to help in the analysis. Before you try to follow this example‚ you should learn as much as you can about Pivot Tables from Microsoft’s
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gradually became closer to purple/blue (darker colour) - As NaF became less concentrated in the solution‚ it gradually became closer to peach/colourless (lighter colour) Key: Peach=1 Pink=2 Lilac=3 Mauve=4 Purple=5 Blue=6 Reasurize Processed Data Calculate the average= Average degree of colour change= Group 1 Group 2 trial1+trial2+trial3+trial4+trial5+trial1+trial2+trial3+trial4+trial5/numberof trials A=1+2+2+2+2+1+1+1+1+1/10=
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1) Why serial dilutions are preferred to one large dilution in lab experiments? Answer: Serial dilution is the technique of performing repeated dilutions on the same chemical in order to change its concentration. The diluted solution from a serial dilution can be used to calculate the concentration of the actual solution. In experimental work‚ often we need to obtain a range of concentrations for a specific compound. Thus‚ instead of preparing one large dilution‚ if we take a concentrated sample
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First of all “A serial dilution is a series of sequential dilutions used to reduce a dense culture of cells to a more usable concentration . Each dilution will reduce the concentration of bacteria by a specific amount” .( Study . com / Serial Dilution ) A serial dilution is any dilution were the concentration decrease by the same quantity in each successive step . The purpose of serial Dilution is to reduce the concentration of cells
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to providing her customers with the best selection of fine foods and great wines. Evaluation of the design elements The Inventory Table contains the components that make up an Item. It is used for managing inventory and determining the availability of ingredients that go into prepared items‚ such as bakery products‚ etc. First‚ the table organizes the financial data into department‚ then financial account codes‚ item‚ and then sums the total amount of transactions for the code and then counts how
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Data Table Analysis Introduction Kudler Fine Foods was founded by Kathy Kudler in the summer of 1998 in La Jolla‚ California. Two other stores were opened at Del Mar and Encinitas California‚ Kudler Fine Foods deals in specialty foods sells; fresh bakery/Pastries fresh produce fresh meat & seafood condiments and packaged foods cheese’s and specialty dairy products (Kudler Fine Foods‚ 2003). The Entity Relation diagram and pivot table would help Kudler Fine Foods improve the data tables and
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1. Introduction: The goal of this lab was to demonstrate the microbiology technique of serial dilutions and how they can effectively be used in experiments. E. coli cells were exposed to UV light for various amounts of time in order to asses the effect on growth and thereby mutations since this cell was modified to not have photolyse no uvr genes for DNA repair and thus can only use the SOS response. Each group then diluted the cells accordingly based on their UV exposure time and counted the cells
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