Tools for sustainable analytical methods: A green metric approach

Environmentally friendly green analytical chemistry promotes the use of less harmful chemicals and reagents, energy saving in lab equipment, and little waste. Miniaturising sample preparation devices, studying solvent-less or solvent-minimized extraction techniques, and using less toxic solvents are contemporary analytical method trends. The twelve Green Analytical Chemistry (GAC) principles guide these developments, which include environmentally friendly practises into analytical procedures. Even with these principles, some unavoidable processes may prevent analytical techniques from being completely green. The environmental and occupational impacts of such processes must be assessed and minimised if feasible. To quantify analytical technique greenness, numerous metrics have been proposed. They include the Analytical Eco-Scale, Analytical Greenness (AGREE) Metric, and Green Analytical Procedure Index (GAPI), which use different features of the analytical process to calculate a green index. This article explains the fundamentals of distinct metrics and how they might be used in analytical methods. It also covers user positives and downsides of these measures. By illuminating these assessment techniques and their ramifications, this work hopes to stimulate new green analytical chemistry views and advances.