Magnetic solid-phase extraction based on a trimethylstearylammonium bromide coated Fe3O4/SiO2 composite for determination of adriamycin hydrochloride in human plasma and urine by HPLC-FLD
Analytical Methods Pub Date: 2014-06-18 DOI: 10.1039/C4AY00768A
Abstract
A novel trimethylstearylammonium bromide (TSAB) coated Fe3O4/SiO2 magnetic nanocomposite was fabricated and used as the adsorbent for the magnetic solid-phase extraction of adriamycin hydrochloride (ADR) in human plasma and urine with high performance liquid chromatography-fluorescence detection (HPLC-FLD). The factors influencing the extraction efficiency were examined including the pH value, extraction time, elution solvent, etc. A good linearity was presented by HPLC-FLD in the range of 0.5–10.0 μg mL?1 for ADR, with the correlation coefficient of 0.998 (R2). The relative standard deviation was 4.27%. The limit of detection and limit of quantitation were 5.05 and 16.82 ng mL?1, respectively. The feasibility of the developed method was further validated by extraction of ADR in plasma and urine samples. The recoveries were in the range of 76.5–94.0% and 77.9–96.0% for plasma and urine samples, respectively.
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Journal Name：Analytical Methods
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CAS no.: 89640-58-4
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