Research Institute of Shandong Province

Yantai, China

Research Institute of Shandong Province

Yantai, China
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Xu Y.J.,Research Institute of Shandong Province | Tian X.H.,Research Institute of Shandong Province | Zhang X.Z.,Research Institute of Shandong Province | Gong X.H.,Research Institute of Shandong Province | And 3 more authors.
American Laboratory | Year: 2010

UltraPerformance LC® (UPLC®) (Waters Corp., Milford, MA) with electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS-MS) method was used for simultaneous determination of 24 hormone residues in aquatic products. Individual stock solutions of 100 μg/mL for all compounds were prepared in HPLC-grade methanol and kept at -20°C. Each tuning solution was introduced into the electrospray source by direct infusion and the main ions produced in MS and MS-MS were identified in positive and negative ionization modes. The results show that the hormones do not degrade at 10°C in an autosampler for 30 hr. Bisphenol A is found to become a well known target for environmental research because of its potential activity as an endocrine disruptor in animals.

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