Simple and sensitive determination of sulfites in Chinese herbal teas by ultrahigh-performance liquid chromatography tandem mass spectrometry
Leiwenxuan Yang, Gaohua Hu, Yali Huang, Chen Wang, Xin Liu, Chengyin Lu, Hongping Chen, Jianyang Zhang, Guicen Ma
Abstract
) and high recoveries in the range of 83.8-102.7% at different spiked levels. The method has the great advantages of being time saving, good reproducibility and much lower detection limits when compared to titration methods. The method was further applied to analyze real herbal tea samples collected from the local market, demonstrating that our developed method is robust and useful for determining sulfites in practical application.
Topics & Concepts
ChromatographyChemistryExtraction (chemistry)Detection limitAmmonium acetateSolid phase extractionAcetic acidHigh-performance liquid chromatographyTandem mass spectrometrySulfiteMass spectrometryInorganic chemistryBiochemistryAnalytical Chemistry and ChromatographyAnalytical chemistry methods developmentAdvanced Chemical Sensor Technologies