Question 1 (20 marks) You have been approached by a market gardener from Mt Isa who is producing vegetables. The town is a centre for heavy industry and there is concern regarding the potential for trace contamination of heavy metals in the food chain. Describe how you would go about determining if this was a problem. What samples would you need to take? What substances would you analyse for? Be sure to consider all aspects of the process (e.g. sample handling and preparation, choice of analytes, choice of techniques etc). Ensure you give the reasoning behind your choices and properly reference any reports, books or journal articles you refer to.