Extraction of salinomycin from finished layers ration by microwave solvent extraction followed by liquid chromatography
Analyst Pub Date: DOI: 10.1039/AN9962100803
Abstract
A rapid, reliable, environmentally friendly and economical extraction technique was developed for the extraction of sodium salinomycin (referred to as salinomycin antibiotic to prevent coccidiosis in broilers) in finished feeds. The method involved a microwave extraction procedure using an ordinary microwave oven. Feed mixed with ethanol–propan-2-ol (15 + 2) was irradiated with microwave energy for 8 s. Salinomycin was detected by HPLC at 592 nm after post-column derivatization with dimethylaminobenzaldehyde at 85 °C. The salinomycin concentration determined in finished feeds was 34, 60, 103 and 160 mg kg–1, compared with calculated values of 30, 60, 90 and 150 mg kg–1, respectively. The corresponding values obtained with the conventional technique were 27, 45, 59 and 112 mg kg–1. Salinomycin is stable in finished feeds for more than 8 months.
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Journal Name：Analyst
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CAS no.: 89640-58-4
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