Dual ambient plasma source ionization mass spectrometry for the rapid detection of trace sterols in urban water |
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Authors: | Gaosheng Zhao Fengjian Chu Jianguang Zhou |
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Affiliation: | 1. Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, China;2. College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China |
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Abstract: | A direct analytical method based on dual ambient plasma ion source tandem mass spectrometry was used for the simultaneous determination of four sterols in the environment. This technology has very high sensitivity and the method detects the four sterols in methanol–water (1:3) solutions with limits of detection (LOD) and limits of quantification (LOQ) ranging from 1.2 ng/L to 6.9 ng/L and 7.6 ng/L to 10.0 ng/L, respectively. The method was also used to test water quality at three locations within the city and successfully detected all four sterols at very low concentrations. The dual plasma source tandem mass spectrometry technique is extremely simple, rapid, sensitive and highly efficient compared to other traditional methods, providing a useful screening tool for sterols in water. |
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Keywords: | dual ambient plasma source tandem mass spectrometry high sensitivity rapid detection technology sterol detection urban water |
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