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• W2023355115 abstract "Abstract Introduction – Artemisinin, the primary active ingredient of the Chinese herb Artemisia annua L., is known to have considerable anti‐malaria properties. However, rapid, sensitive and selective method for the determination of artemisinin in it is not currently available. Objective – To develop and validate an efficient method for extraction and analysis of artemisinin from the plant samples of Artemisia annua L. by rapid resolution liquid chromatography triple quadrupole mass spectrometry (RRLC‐QQQ). Methodology – Following ultrasound‐assisted extraction (USE), RRLC‐QQQ was utilised to separate and determine artemisinin from the plant sample of Artemisia annua L. The LC separation, QQQ‐MS detection and multiple reaction monitoring (MRM) mode were optimised, and the method validation concluding selectivity, calibration, accuracy and precision, and recovery were also evaluated. Results – LC separation was performed with an isocratic elution of 20% of methanol–water (10 mmol/L ammonium acetate, pH 4.0) on a C 18 column. The triple quadrupole MS detection was carried out under MRM mode of precursor ion [M + H] + → fragment ions m/z 265.1 and m/z 247.2. The limits of detection and quantitation of artemisinin were 0.20 and 0.75 ng/mL, respectively. The intra‐ and inter‐day precisions did not exceed 3.71%, and the deviation of the intra‐ and inter‐day mean values did not exceed ±7.50. The average recoveries for artemisinin ranged from 92.45 to 103.8% with an RSD from 2.47 to 2.79%. Conclusion – The developed RRLC‐QQQ assay is an efficient method for separation and determination of artemisinin from the plant samples of Artemisia annua L. Copyright © 2011 John Wiley & Sons, Ltd." @default.
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• W2023355115 date "2011-02-19" @default.
• W2023355115 modified "2023-10-18" @default.
• W2023355115 title "A combination of ultrasonic-assisted extraction with RRLC-QQQ method for the determination of artemisinin in the Chinese herb <i>Artemisia annua</i> L." @default.
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• W2023355115 doi "https://doi.org/10.1002/pca.1277" @default.
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