Recent advances in green chromatography techniques for natural product analysis

What if analyzing plant compounds could help save the planet? New green chromatography techniques are making this a reality—by swapping toxic solvents for eco-friendly alternatives.

For decades, scientists studying natural products relied on chromatography methods that were accurate but far from green. These traditional techniques often demanded toxic organic solvents and energy-hungry processes, posing risks to both health and the environment. Now, a wave of innovation is changing the game.

Enter Supercritical Fluid Chromatography (SFC), a star player that uses carbon dioxide as a non-toxic, reusable mobile phase, drastically cutting harmful solvent use. Meanwhile, Micellar Liquid Chromatography (MLC) and High-Performance Thin Layer Chromatography (HPTLC) are gaining fans for their miniaturized, efficient separations that minimize solvent consumption. Natural Deep Eutectic Solvents (NADES) are also stepping up as biodegradable, low-toxicity alternatives for extraction and sample prep.

Microextraction techniques like Solid Phase Microextraction (SPME) and Liquid Phase Microextraction (LPME) further shrink solvent and sample volumes. When paired with online extraction and real-time detection, these methods boost analysis throughput while protecting the planet.

These green strategies are proving their mettle in analyzing plant compounds—flavonoids, alkaloids, terpenes, and phenolics—with high analytical performance. Combined with advanced detectors like LC-MS/MS and GC-MS under optimized conditions, they deliver both precision and a smaller ecological footprint. The path to sustainable analysis is now clear.

Key Points

• SFC uses CO2 as a non-toxic mobile phase
• MLC and HPTLC minimize solvent use
• NADES offer biodegradable extraction alternatives