Have been given this as an assignment and have no clue where to start with it. Please help!

An accident has occurred at a pharmaceutical plant, resulting in contamination of a 5 m3 tank of a moderately polar solvent with Heptane, di-n-butyl phthalate and ethyl acetoacetate. Given your expertise in analytical methods, the company has tasked you with analysing the level of contamination, specifically of Heptane only. di-n-butyl phthalate and ethyl acetoacetate are considered to be interferents therefore must be removed in the sample preparation stage prior to analysis. You must choose at least one appropriate analytical technique and detection method to assess the concentration of Heptane and outline the procedure for analysis.

The report must detail your methodology at each step and be structured as follows:

1. Introduction

2. Sampling Methodology

3. Sample Preparation

4. Analysis Technique

5. Detection method

6. Analysis of Results

7. Conclusion

8. References

The rationale for why you chose each approach should be included under each heading. When outlining your strategy, consideration should be given to how you will obtain a representative sample, removal of interferents at the sample preparation stage and choosing both an appropriate analytical technique and detection method based on the chemical nature of the compound of interest.