Sensing Estrogen with Electrochemical Impedance Spectroscopy

Jing Li, Byung Kun Kim, Kang Kyun Wang, Ji Eun Im, Han Nim Choi, Dong Hwan Kim, Seong In Cho, Won Yong Lee, Yong Rok Kim

Research output: Contribution to journalArticle

Abstract

This study demonstrates the application feasibility of electrochemical impedance spectroscopy (EIS) in measuring estrogen (17β-estradiol) in gas phase. The present biosensor gives a linear response (R 2 = 0.999) for 17β-estradiol vapor concentration from 3.7 ng/L to 3.7 × 10-4 ng/L with a limit of detection (3.7 × 10-4 ng/L). The results show that the fabricated biosensor demonstrates better detection limit of 17β-estradiol in gas phase than the previous report with GC-MS method. This estrogen biosensor has many potential applications for on-site detection of a variety of endocrine disrupting compounds (EDCs) in the gas phase.

Original languageEnglish
Article number9081375
JournalJournal of Analytical Methods in Chemistry
Volume2016
DOIs
Publication statusPublished - 2016 Jan 1

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All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Instrumentation
  • Computer Science Applications

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