A recent study has introduced an eco-friendly and efficient method for detecting organochlorine pesticides (OCPs) in beverages and herbal extracts using biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More derived from kapok fibers. Organochlorine pesticides, despite their diminished use in developed countries, persist in the environment and pose significant health risks. This new approach utilizes kapok fiber-derived biochar (KFBC) for pipette-tip solid-phase microextraction (PT-SPME) to efficiently extract these contaminants.

The researchers created KFBC by pyrolyzing natural kapok fibers, known for their large surface area and porous structure. This biochar was then integrated into pipette tips, creating a user-friendly extraction device. The process is simple, using only 150 μL of acetonitrile and taking about 3 minutes to complete. When combined with gas chromatography-electron capture detection (GC-ECD), the method showed high sensitivity, with detection limits between 0.03 and 0.30 ng/mL, and excellent accuracy and precision.

This technique offers several advantages: it is cost-effective, reduces the use of organic solvents, and minimizes environmental impact. The method’s efficiency and eco-friendliness make it a promising tool for regular monitoring of OCPs, helping to ensure the safety of food and herbal products. This innovative approach not only simplifies the detection process but also contributes to sustainable and green chemistry practices.