Chemistry Sample


Chemistry Drugs

As part of investigation of substances as drugs, we need to use several analytical techniques. The ones used for this report are as described below.

Different analytical techniques are available for the identification and characterisation of molecules. Chromatography techniques are amongst the most widely used. These techniques involve dissolving the substance in a liquid or gas and passing through a column made of small particles. Depending on the size of the solute, it will get separated out at a different rate from others. High Performance Liquid Chromatography is the most commonly used chromatography technique for separating out mixtures into their individual components. Read More

Chemistry Tasks: Barbeque Grills

Barbeque grills can be charcoal fuelled or gas fuelled. In this case, the grill is a double grill that has both charcoal and gas fuelling provisions. It is therefore crucial to select the material of the body suitably so that it gives optimal performance with both the fuelling provisions. Moreover, the material of the body contributes largely to the efficiency of the barbeque.

Some common materials used are enamel, stainless steel, cast aluminium, cast iron, porcelain coated or painted steel. Each of these has their own advantages and disadvantages. Porcelain enamelled grills are easy to clean and maintain but they are prone to chipping and peeling easily. While painted steel is vulnerable to rusting easily, stainless steel is prone to discoloration and losing of its sheen, if not maintained properly. Cast iron grills are best at retaining heat but are not rust resistant. Read More