Prompt:

A scientific illustration depicting the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method for sample extraction. The image should include the following steps: Acetonitrile extraction: Show an Erlenmeyer flask with two layers: the top layer is an orange-yellow acetonitrile solution (upper layer) and the bottom layer is an aqueous solution (lower layer). Magnesium sulfate (MgSO₄) for salting-out: Illustrate salt crystals (MgSO₄) in the lower aqueous layer, indicating the salting-out effect for water removal. Adsorbents for purification: Depict suspended particles of adsorbents such as C18 and PSA in the acetonitrile layer. Show the particles as small spheres or granules, clearly labeled as 'C18' and 'PSA'. Final mixture: In a second image, display the acetonitrile solution after purification, containing only the C18 and PSA adsorbents, ensuring clarity with labels for each component. The overall style should be clean, minimalist, vector-style, with clear outlines and contrasting colors to represent different layers and components. The design should make it easy to identify each step of the QuEChERS process while keeping the illustration scientifically accurate and simple