Sulphate

N-acetylgalactosamine 4-sulphate, also known as GalNAc4S, increased by 2.17 fold compared with normal controls (p<0.05). N-acetylgalactosamine 4-sulphate is key component of glycosaminoglycans (GAG) including dermatan, keratan and chondroitin sulfate), and is found in elevated concentrations in the urine of MPS patients. More interestingly, since Hex enzyme may also cleave GAG, mice and cats with SD showed GAG accumulation and MPS-like phenotype [14,15]. The increase in N-acetylgalactosamine 4-sulphate may be a

In this experiment, a nucleophilic substitution was performed, where a chloride nucleophile substituted a tertiary hydroxyl group on 2-methyl-2-butanol. In a nucleophilic substitution reaction, an electron rich nucleophile attacks a positively or partially positively charged electrophile, and replaces a leaving group. In this reaction, chloride ions are the nucleophile, the tertiary carbon in 2-methyl-2-butanol is the electrophile, and water is the leaving group. In the mechanism for this reaction

Natural gas is a pillar in Canada’s energy resources landscape. Industry reports (IBISWorld) indicate that the oil and gas industries (e.g., gas extraction, gas field services, natural gas distribution) in Canada are expected to generate revenues of over $56.4bn in 2015. The Canadian Energy Research Institute projects Western Canada’s natural gas sector to add $2.3tn to Canada’s GDP between 2015 and 2035. While, sales are projected to generate $1.4tn in sales and $400bn in taxes, as well as attract

solution of unknown hydrate was taken separately in different test tubes reacted with given known aqueous solutions and reagents. 1. Reaction with Sodium sulfate: Few drops of sodium sulphate were added to the test tube. White precipitates were formed. 2. Reaction with Magnesium sulfate: Few drops of Magnesium sulphate were added to the test tube. White precipitates were formed. 3. Reaction with HCl: Few drops of 06 molar HCl were added to the test tube. Reaction did not occur at low concentration

can frequently occur and then they have a more negative impact on environment and the living world [20]. It is hard to specify the diseases which could be caused by SO2, and which could be caused by fine sulphate particles which exist in our surrounding and are created by nucleation of SO2. Sulphate particles with the diameter 2,5 and 10μm have a particularly negative impact [21]. Gas and particles almost

the flame test will be successful in identifying which cation (sodium, potassium and strontium) is in which solution through the colour of the flame. It is also predicted that the precipitate tests will successfully identify the anions (carbonate, sulphate and chloride) by testing the solubility of the solutions. The dependant variable is the chemicals in the unknown solutions. The independent variable is the flame test and precipitate test and the controlled variable is the unknown solutions which

Introduction Methionine and cysteine are both sulphur containing amino acids. Most proteins will contain one, or both of them at some point in the polypeptide chain. As such, many amino acids contain sulphur in some form, which is required in small amounts in the mammalian diet. Methionine has a thioether side chain, and cysteine's contains a thiol group. These side chains exist as free thiols inside the cell, and are oxidised causing them to pair up and form disulphide bonds in an extracellular

1. Definition of Acid and Bases: 1.1 Arrhenius definition of acid and base: Arrhenius Acid: The substance or a compound which gives H+ ions in aqueous solution Arrhenius base: Base is a substance or compound that produces OH- ions in aqueous solutions. Chemists have known for some time that the H+ ion doesn’t exist in aqueous solutions as an independent species. The modernized Arrhenius definition of acid is that they are substances that produce H3O+ ions in aqueous

Introduction Methionine and cysteine are both sulphur containing amino acids. Most proteins will contain one, or both of them at some point in the polypeptide chain. As such, many amino acids contain sulphur in some form, which is required in small amounts in the mammalian diet. Methionine has a thioether side chain, and cysteine's contains a thiol group. These side chains exist as free thiols inside the cell, and are oxidised causing them to pair up and form disulphide bonds in an extracellular

component of pre hospital care for paramedics, paramedics have a large arsenal of drugs to hand with analgesic effects; the most potent of these being the Opioid based drug Morphine Sulphate, which Nancy Caroline (2013) states to be the gold standard for parental analgesia. Although at times it can be found that Morphine Sulphate isn’t efficient in pain management and coupled with this is a large degree of potential side effects. Thus being said is there an opportunity for further analgesic drugs to be