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首页> 外文期刊>Zeitschrift fur Arznei- und Gewurzpflanzen >A New LC-MS/MS Method for Simultaneous and Quantitative Detection of Bisphenol-A and Steroids in Target Tissues: A Power Tool to Characterize the Interference of Bisphenol-A Exposure on Steroid Levels
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A New LC-MS/MS Method for Simultaneous and Quantitative Detection of Bisphenol-A and Steroids in Target Tissues: A Power Tool to Characterize the Interference of Bisphenol-A Exposure on Steroid Levels

机译:一种新的LC-MS / MS方法,用于同时和定量检测靶组织中双酚-A和类固醇的方法:一种用于表征双酚-A暴露对类固醇水平的动力工具

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摘要

Bisphenol A (BPA), an endocrine disruptor, may affect in situ steroidogenesis and alter steroids levels. The present work proposes a liquid chromatography tandem mass spectrometry method to simultaneously quantify BPA, 17 beta-Estradiol and testosterone in two target tissues: testis and visceral fat mass. Analytes were isolated and lipophilic impurities removed by two serial steps: liquid-liquid and solid phase extraction. All compounds were separated in a single gradient run by Kinetex F5 column and detected via multiple reaction monitoring using a triple quadrupole with a TurboIon electrospray source in both negative and positive modes. The method is selective and very sensitive. In the investigated concentration range, the linearity of the detector response is verified in both tissues. The use of specific SPE cartridges for affinity chromatography purification allows obtaining high percentages of process efficiency (68.0-83.3% for testicular tissue; 63.7-70.7% for visceral fat mass). Good repeatability and reproducibility was observed. The validated method can be efficiently applied for direct biological monitoring in testis and visceral fat mass from mice exposed to BPA. The quantification of compounds in a single assay could be achieved without a loss of sensitivity.
机译:双酚A(BPA),内分泌破坏剂可能会影响原位甾体,改变类固醇水平。本作者提出了一种液相色谱串联质谱法,在两种靶组织中同时定量BPA,17β-雌二醇和睾酮:睾丸和内脏脂肪质量。分析物分离,双连续步骤除去脂质杂质:液 - 液和固相萃取。所有化合物在由Kinetex F5柱的单个梯度中分离,并通过使用三重四极针在阴性和正模式下使用三重四极孔进行多次反应监测来检测。该方法是选择性的,非常敏感。在调查的浓度范围内,在两个组织中验证了检测器响应的线性。用于亲和层析净化的特定SPE盒的使用允许获得高百分比的工艺效率(睾丸组织的68.0-83.3%;内脏脂肪质量的63.7-70.7%)。观察到良好的重复性和再现性。验证的方法可以有效地应用于睾丸和暴露于BPA的小鼠的睾丸和内脏脂肪物质中的直接生物监测。可以在没有敏感性的情况下实现单一测定中化合物的定量。

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