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首页> 外文期刊>International Journal of Electrochemical Science >Estradiol Valerate Determination in Whole-Blood Samples using FFT Square Wave Voltammetry and Supported Liquid Membrane Micro-Extraction
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Estradiol Valerate Determination in Whole-Blood Samples using FFT Square Wave Voltammetry and Supported Liquid Membrane Micro-Extraction

机译：FFT方波伏安法和支持的液膜微萃取技术测定全血样品中的戊酸雌二醇

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摘要

Herein, a new analytical technique based on fast Fourier transmission square wave voltammetry(FFTSWV) coupled with Flat Sheet Supported Liquid Membrane (FSSLM) was used for the extractionand subsequent determination of estradiol valerate (EV) in whole blood samples. First, EV was extractedfrom the blood sample through a PTFE membrane soaked in 1-octanol into a buffer solution, and then itwas oxidized on a carbon paste electrode modified with cerium carbonate nanospheres. The effect ofdifferent separation parameters such as membrane solvent, pH of donor and acceptor phases, andextraction time on the recovery of EV was investigated. This coupled technique showed two linearcalibration regions. Based on the first calibration region (10?500 ng mL-1), the detection limit of themethod was 2 ng mL-1 with R-square of 0.995. Under the optimal conditions, EV was effectivelyextracted from the whole blood sample with recovery percentage of 52% and pre-concentration factor0f 1.5 Considering the complex media of the blood sample, this assay can be a competitive analyticalmethod for the determination of EV in complex samples like blood.
机译：在此，基于快速傅立叶透射方波伏安法（FFTSWV）结合平板支撑液膜（FSSLM）的新分析技术被用于全血样品中戊酸雌二醇（EV）的提取和后续测定。首先，通过在1-辛醇中浸泡的PTFE膜从血液样本中提取EV到缓冲溶液中，然后在用碳酸铈纳米球改性的碳糊电极上将EV氧化。研究了膜分离溶剂，供体和受体相的pH，萃取时间等不同分离参数对EV回收率的影响。这种耦合技术显示了两个线性校准区域。根据第一个校准区域（10？500 ng mL-1），该方法的检出限为2 ng mL-1，R平方为0.995。在最佳条件下，可以从全血样品中有效提取EV，回收率为52％，且预浓缩系数为0f 1.5。考虑到血液样品的复杂介质，该测定方法可以作为测定复杂样品中EV的竞争性分析方法。血液。

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