Chinese Herbal Medicine Residue‐Derived Biochar Assisted Matrix Solid Phase Dispersion Microextraction of Synthetic Dyes From Lake Sediments Using Supramolecular Solvents as Dispersing Solvents

Journal of Separation Science, Journal Year: 2025, Volume and Issue: 48(4)

Published: April 1, 2025

ABSTRACT In this study, a new matrix solid‐phase dispersion (MSPD) method was developed and applied to extract auramine O (AO) rhodamine B (RB) from sediment samples. A supramolecular solvent (SUPRAS) composed of hexafluorobutanol (HFB) linaool used as the dispersing MSPD. Biochar, obtained by pyrolysis Chinese medicine residue namely Sophora japonica L., sorbent MSPD procedure. Parameters influencing extraction efficiency including type volume solvent, amount sorbent, grinding period, vortex time were investigated optimized. Under optimized conditions, linear range target analytes 3–400 µg g −1 with correlation coefficients higher than 0.9964. The provided low limits detection quantification, excellent precision (intra‐ inter‐day analysis relative standard deviations below 5.5%). Finally, proposed determine synthetic dyes in Dianchi Lake sediments satisfactory recoveries 93.5%–105.1%, indicating applicability for determination real Compared traditional sample preparation samples, reduced time, sample, organic usage. is easy, fast, green can be various

Language: Английский

Switchable solvent-based liquid phase microextraction of Sudan Dyes in food and water samples with HPLC-DAD

Journal of Food Composition and Analysis, Journal Year: 2024, Volume and Issue: unknown, P. 107099 - 107099

Published: Dec. 1, 2024

Language: Английский