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• SF-MST was evaluated using the AI-Delphi framework. • Independent experts iteratively assessed SF-MST via RGBₑx-ante model. • ChatGPT synthesized experts input and provided its own opinion. • SF-MST shows increased greenness, but worse analytical and practical potential. • Perspective of using AI in method evaluation is discussed. Stop-Flow MicroScale Thermophoresis (SF-MST) enables thermophoretic analysis of highly miniaturized samples introduced into ultrathin capillaries by pressure or electrophoresis. Although successfully applied by our group in several research areas, the broader analytical potential and overall added value of SF-MST remain uncertain and require structured evaluation. To address this, the RGBₑx-ante model based on the White Analytical Chemistry (WAC) concept was applied to prospectively assess this technique in terms of analytical performance (red), environmental friendliness and safety (green), and practicality (blue), which together determine its overall “whiteness”. Seven independent experts participated to ensure objectivity, and moreover, generative artificial intelligence (ChatGPT) was incorporated as an element of the iterative consensus process (AI-Delphi). The final whiteness score obtained from experts, after considering both peer and AI assessments, was 90. 5, indicating a moderate potential of SF-MST. The technique offers clear environmental and conceptual benefits, but its analytical and operational limitations still restrict broader implementation. This work presents the first integration of the RGB model with a Delphi-type expert framework and the first use of a trained large language model as a co-expert in the evaluation of whiteness. The study not only clarifies the strengths and weaknesses of SF-MST but also suggests how AI-supported assessment can enrich the methodological landscape of Green and White Analytical Chemistry.
Nowak et al. (Mon,) studied this question.