Two paint samples are sent to you for analysis to determine whether they are from the same source. From the list of techniques below, discuss two you would choose. In your answer you should explain the rationale for your choice and explain using suitable examples the nature of data that would be obtained and how it could be used to help any differences between the samples. - Scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDX) - Infrared and Raman spectroscopy - Atomic force microscopy - Thermal analysis (differential scanning calorimetry and thermogravimetric analysis)