@article {YAHAYA2021131220,
	title = {Capillary electrophoresis{\textendash}mass spectrometry analysis of bisphenol A and its analogues in bottled tea beverages with dynamic pH focusing},
	journal = {Food Chemistry},
	volume = {372},
	year = {2022},
	month = {03/2022},
	pages = {131220},
	type = {Research},
	abstract = {<p>A simple and sensitive method for the determination of bisphenol A and its analogues at the ng/mL level in bottled tea beverages is presented. This method utilized a dynamic pH junction to focus the analyte into a more concentrated zone, based on the electrophoretic mobility difference of analytes in the sample matrix and background electrolytes in capillary electrophoresis coupled to mass spectrometry (CE-MS). The optimised analyte focusing led to enhanced signal detection with average peak heights for five bisphenols of 53 \&ndash; 170 folds higher than conventional injections. Under optimised conditions, the method showed good linearity in the range of 0.1 \&ndash; 100 ng/mL, excellent limits of detection (0.03 \&ndash; 0.04 ng/mL), good analyte recovery (80.3 \&ndash; 118.1\%) with acceptable relative standard deviations (\&lt; 12\%). The limits of quantifications were below the maximum permissible content of bisphenol A set by the European Commission for this product. This method was used to quantitatively analyse bisphenols in six different kinds of bottled tea beverages, making it a promising tool for practical applications.</p>},
	keywords = {acid barrage stacking, bisphenols, capillary electrophoresis-mass spectrometry, Dynamic pH junction focusing, tea beverages},
	issn = {0308-8146},
	doi = {https://doi.org/10.1016/j.foodchem.2021.131220},
	url = {https://www.sciencedirect.com/science/article/pii/S0308814621022263},
	author = {Noorfatimah Yahaya and Zi-Ao Huang and Binjun Yan and David D. Y. Chen}
}
@inbook {27741,
	title = {Electrospray Ionization Interface Development for Capillary Electrophoresis{\textendash}Mass Spectrometry},
	booktitle = {Capillary Electrophoresis{\textendash}Mass Spectrometry (CE-MS)},
	year = {2016},
	pages = {7{\textendash}39},
	publisher = {Wiley-VCH Verlag GmbH \& Co. KGaA},
	organization = {Wiley-VCH Verlag GmbH \& Co. KGaA},
	keywords = {capillary electrophoresis-mass spectrometry, desorption ionization techniques, electrospray ionization, gas phase, separation efficiency},
	isbn = {9783527693801},
	doi = {10.1002/9783527693801.ch2},
	url = {http://dx.doi.org/10.1002/9783527693801.ch2},
	author = {Risley, J and De Jong, CAG and Chen, DDY}
}
