These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Determination of environmental estrogens in cow feed and soil by high performance liquid chromatography-tandem mass spectrometry].
    Author: Li X, Mu G, Chen L, Jiang T.
    Journal: Se Pu; 2013 Sep; 31(9):908-13. PubMed ID: 24392631.
    Abstract:
    An analytical method was developed for the determination of the residues of five environmental estrogens, including estriol, estradiol, estrone, bisphenol A and diethylstilbestrol, in the cow feed and soil by solid phase extraction (SPE) and high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The important parameters which affect the determination efficiency such as the mobile phase, the condition of mass spectrometry and solid phase extraction column were optimized. The optimal determination conditions were as follows: the sample was extracted with acetonitrile at first, then cleaned-up with an NH2-SPE column, and an Acquity UPLC HSS T3 column was selected to separate the analytes. Acetonitrile-methanol (4: 1, v/v) and 0.01% ammonia aqueous solution were used as the mobile phase by gradient elution in the negative mode. The limits of detection (LOD, S/N = 3) were 0.06 - 0.22 microg/kg. The overall recoveries varied from 81.70% to 102.20%, and the relative standard deviations (RSDs) were all less than 10.00%. This method is simple, sensitive and accurate, and suitable for the determination of environmental estrogens in cow feed and soil.
    [Abstract] [Full Text] [Related] [New Search]