Total Carbohydrates Using the Phenol-Sulfuric Acid Method This lab introduced the students to analyzing carbohydrate content using a spectrophotometer and phenol-sulfuric acid methods. Virginia Smith 983976633 Lab Partner: Jeff Martz Due Date: 3-22-11 Introduction The objective of this lab was to have students use a spectrophotometer to analyze the carbohydrate content in the sample. Phenol-sulfuric acid methods were also applied
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acid‚ or DNA as it is most commonly known‚ is a strand of molecules found within the cell nucleus of all living things. It is called a “genetic fingerprint” because each is dissimilar to the other and each person‚ apart from identical twins‚ has different DNA patterns. DNA testing has overthrown the way law enforcement agencies collect evidence in numerous criminal cases‚ especially rape and murder and consequently had a large impact on countless past cases. The prospect of a national DNA database
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RAJESH BUSINESS INTELLIGENCE GENERIC EXTRACTION CHAPTER – 4 EXTRACTIONS It is mainly used for extracting the data form other Source Systems like R/3 etc. DataSource: Defines as extract structure and transfer structure from source system (like SAP R/3) and transfer structure from BW side. ES -> What data to be extracted from source system TS -> What data to be extracted from source system to BW. TS is a group of fields which indicated how the data is coming from the source system
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chemical synthesis: extraction of crude caffeine pose little toxicity to human health and the environment.(1) Q2) Things not green: According to GCP# 5 i.e. Safer solvent and auxiliaries: In liquid-liquid extraction of caffeine‚ Dicholoromethane was used which is a hazardous chemical and have potential acute health effects(2). According to GCP#12 i.e. Inherent safer chemistry for accident prevention: The separatory funnels used in the experiment for liquid-liquid extraction was a dangerous procedure
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The story The Structure of DNA: Cooperation and Competition demonstrates the nature of science in many ways. DNA was not discovered by just one person‚ it was discovered by many different scientist who built on each others’ ideas. The main scientists who were featured in the story were James Watson‚ Rosalind Franklin‚ Francis Crick‚ Raymond Gosling and Maurice Wilkins. In the case of this story‚ scientific knowledge assumes an order and consistency in natural systems. Science models were used
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DNA databases In 1992‚ The United States‚ Federal Bureau of Investigation funded the Combined DNA Index System (CODIS). It is a computer system that stores DNA profiles created by federal‚ state‚ and local crime laboratories in the United States‚ with the ability to search the database in its entirety; it also helps agencies identify suspects of crime. The origin of CODIS is attributed to the Scientific Working groups (SWG) that began in the late 80’s. SWG was backed by the FBI Laboratory which
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Practical 16: estimating Population Size Using Mark and Recapture Method Raw and Processed Data Table 1: Uncertainties of apparatus used in the experiment. Apparatus | Uncertainties | Stopwatch | ±0.01s | Table 2: Formulae and sample calculations involved in processing data in the experiment. Calculations | Formula | Sample Calculation | Mean ( x ) | x = 1n i=1naiWhere‚ 1. n refers to the total number of values. 2. ∑ refers to the addition of all values starting with the first value
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Surgical extraction I start by escorting the patient into the surgery I put full personal protective equipment on myself and the patient‚ I have placed all needed instruments on the work top for the dentist to access. Instruments: * Mirror‚ probe and tweezers * Local anaesthetic equipment * Aspirator and saliva ejector * Hand piece (fast slow and straight) and surgical burs * Scapel‚ periosteal elevator and swabs * Retractors * Forceps * Elevators * Bone forceps
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TAMARINDUS Linnaeus pp. 434-436‚ Manila * Srivastava‚ P. & Malviya‚ R. (2011) Indian Journal of Natural Products and Resources Vol. 2 (1) Sources of pectin‚ extraction and its applications in pharmaceutical industry. pp. 10-18 * May‚ C. D. Handbook of Hydrocolloids pp. 169-188 * Huang‚ J. M. G. Improved method for the extraction of Pectin‚ PO Box 4200 Highstown‚ New Jersey 08520 Acknowledgement I would like to thank God‚ for His guidance throughout this investigatory project. To my
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coffee. The average pure caffeine yield was 0.330% with a standard deviation of 0.179. This yield is slightly higher than the yield of this report because of the error that occurred during the experiment. A small amount of coffee from the first extraction was stuck in the nozzle of the separatory funnel so it was removed with a pipet and then decanted. This resulted in a loss of product. The average impure caffeine yield was found to be .948% with a standard
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