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1篇 您的检索式：作者名="Yuandui Bi"

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		题名	作者	年代	出处	被引量
	1	Improved method for analyzing the degradation of estrogens in water by solid-phase extraction coupled with ultra performance liquid chromatography-ultraviolet detection显示文摘We established an improved method for the determination of four estrogens including estriol (E3), 17β-estradiol (E2), 17α-ethynyl-estrodiol (EE2) and estrone (E1) in water. The method consisted of solid-phase extraction (0.5 L water) and subsequent analysis of analytes by ultra-performance liquid chromatography (UPLC) with an ultraviolet detector (UVD). Base-line separation was achieved for all studied estrogens using a column (50 mm × 2.1 mm) packed with 1.7 μm particle size stationary phase. Recovery was higher than 88% and detection limits ranged between 12.5-23.7 ng/L for the four estrogens, with the RSD ranging from 7% to 11%. The method was successfully applied to determine E2 and EE2 in simulated natural water, which found that about 70% of E2 was degraded (with a half-life of about 30 hr) within 48 hr and about 55% of EE2 was degraded (with a half-life of about 36 hr). Low levels of E1 were found, however E3 was undetectable during the process.	Minggang Zheng Ling Wang Yuandui Bi Feng Liu	2011	Journal of Environmental Sciences2011，23，4：	2

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