Detection of Polycyclic Aromatic Hydrocarbons in Water and Beverages Using Membrane-Assisted Solvent Extraction Coupled with Large Volume Injection GC-MS

Journal of Scientific Research, Год журнала: 2025, Номер 17(1), С. 325 - 339

Опубликована: Янв. 1, 2025

The present investigation aimed to enhance the identification of polycyclic aromatic hydrocarbons in water and beverages by employing large-volume injection (LVI) conjunction with membrane-assisted solvent extraction for gas chromatography-mass spectrometry analyses. High-purity solvents isotope-labeled standards were used calibrate create hydrocarbon (PAH) standards. Water samples from polluted rivers India commercially available collected preserved under controlled conditions. Microwave-assisted (MASE) was optimized adjusting temperature pH efficient extraction. extracts analyzed using (GC-MS) a system sensitive PAH detection. MASE-LVI-GC-MS efficiently determined 16 PAHs aqueous optimizing parameters like shaking speed, temperature, composition. Recovery percentages above 65 %, relative standard deviation 6 % guaranteed repeatability 18 during five consecutive extractions. It shown that great sensitivity achieved reaching detection limits within range nanograms per litre. In conclusion, combined GC-MS detects various beverage samples, achieving nanogram-per-liter sensitivity. offers uniform extraction, rapid analysis, reduced use across diverse matrices.

Язык: Английский

Molecular response of earthworm, Eisenia fetida to Oxybenzone (Benzophenone-3) exposure

The Science of The Total Environment, Год журнала: 2025, Номер 975, С. 179265 - 179265

Опубликована: Март 31, 2025

Язык: Английский