FORENSIC CHEMISTRY FORENSIC CHEMISTRY SUMMARY NOTES |Ensuring accuracy and contamination of samples for analysis – 1a and 1A |Ensuring accuracy and contamination of samples for analysis – 1a and | | |1A (continued) | |Caution must be taken by scene investigators with regard to their tools‚ |
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POLYHYDROXYBUTYRATE Polyhydroxybutyrate is a biopolymer that occurs naturally in bacteria which is used to manufacture this biopolymer. Its structure consists of polyhydroxyalkanoate‚ which contain two monomers 3-hydroxybutyrate and 3-hydroxyvalerate. Bacteria growing in tanks with a carbon-based food source in which the polymer is then isolated and purified presently produce the polymer industrially. Biotechnology has been recently used to economically attempt produce the polymer using genetic
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ultra-long-acting modified human insulin in which the B30 amino acid is omitted and a glutamic acid spacer links a 16-carbon fatty di-acid chain to the B29 amino acid. Deguldec forms multihexamers following SQ injection‚ leading to a slow release of insulin monomers into the bloodstream and a prolonged duration of action. The half-life of degludec is about 25 hours and its duration of action more than 42 hours. Flat insulin levels are seen within 3 days of the first injection with less daytime variability when
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Polyvinylpyrrolidone (PVP) is a synthetic polymer made from a monomer N_ vinylpyrrolidone. Its known as Povidone in the USP. PVP has many applications in pharmacy‚ medicine‚ industrial production and cosmetics (79). PVP appear as a free flowing white powder with a characteristic odor. It is available commercially with different K values. The K-value is an indication of the mean molecular weight which ranges from 2 to 3KDa for PVP-K12 and from 1000 to 1500KDa for PVP-K90 .It is Soluble in water and
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125 test 1A Student: ___________________________________________________________________________ 1. The breastbone is _____ to the vertebral column. A. anterior B. posterior C. superior D. inferior E. medial 2. The brain and the spinal cord are protected by A. a parietal layer. B. a visceral layer. C. mucous membranes. D. serous membranes. E. the meninges. 3. The system that exchanges carbon dioxide and oxygen and helps in speech is the _____ system‚ whereas the system that
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everyday life. Cells make large macromolecules by bonding smaller molecules together into chains called polymers (from the Greek polys‚ "many‚" and meris‚ "part"). Polymers are large molecules composed of many identical or similar subunits called monomers. There are four categories of biological macromolecules that provide energy and structure to living organisms and their cells. The four types of macromolecules are: · carbohydrates · lipids · proteins · nucleic acids · Compare the structure
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Partner: Purpose The purpose of this experiment is to exemplify how differences in molecular weight allow separation of polymers from their monomers. Methods of dialysis and gel filtration chromatography will be used to separate a glucose monomer from a starch polymer. Colorimetric glucose oxidase assay will be used to monitor the presence of glucose and a colorimetric iodine assay will be used to monitor the presence of starch in prepared
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only biotic species contain. For instance‚ a rock doesn’t have cells‚ only minerals; therefore‚ a rock is abiotic. Biotics contain DNA‚ and DNA is made of nucleic acids (which are polymers because they are many). Nucleic acids are made of many monomers called “nucleotides” which are the smallest and lowest you can go to make
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Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. A DNA molecule which is the abbreviation for deoxyribonucleic acid is made up of precise lengthy chains of polymers and monomers and they are called nucleotides. These two (2) chains specifically which are composed of DNA strain are then molded by the grouping of the nucleotides into the polynucleotides. The nucleotide is composed of a nitrogenous base‚ a phosphate and a group
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DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. A molecule of DNA is made up of long chains of polymers and monomers called nucleotides. Those chains‚ two in particular that compose a strain of DNA‚ are formed by the grouping of nucleotides into polynucleotides. A nitrogenous base‚ a sugar‚ and a phosphate group make up the composition of a nucleotide. In the case of DNA‚ the four nucleotides that are found along the chain of DNA are thymine (T)
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