CMM: Chemical Analysis

Question 1

Explain evidence for the need

to monitor levels of one of the above ions in substances used in society

Answer 1

Lead is a toxic heavy metal which can damage all organs of the body, especially the brain, kidneys and reproductive system by disrupting enzyme systems

Neurological damage as lead is rapidly absorbed by the brain

Inhibits the formation of haemoglobin in red blood cells causing anameia and reducting the ability of blood to transport oxygen

BIOACCUMALATES in the body and is difficult to eliminate. Also bioconcentrates and persists in the environment for long periods of time

Question 2

Describe the use of atomic absorption spectroscopy (AAS) in detecting concentrations of metal ions in solutions

Answer 2

AAS is a quantitative form of analysis that uses the absorption of light to measure the concentration of metal ions in solution.