Real-time selective detection of 2-chloroethyl ethyl sulfide (2-CEES) using an Al-doped ZnO quantum dot sensor coupled with a packed column for gas chromatography

Jun Ho Lee, Hwaebong Jung, Ran Yoo, Yunji Park, Hyun sook Lee, Yong Sahm Choe, Wooyoung Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report a new portable chemical warfare agent analyzer for miniaturized gas chromatography (mini-GC), comprising a packed column and hydrothermally synthesized Al-doped ZnO quantum dots (AZO QDs). This device uses a small volume of the target gas (1 ml) without pre-concentration and can be used to detect 2-chloroethyl ethyl sulfide (2-CEES) gas, which is a mustard gas simulant, over a wide concentration range. The AZO QD (˜5 nm) sensor exhibited an outstanding sensing response (R) of 5,393 in detecting 20 ppm of 2-CEES; this performance is superior to those of other previously reported 2-CEES sensors based on semiconducting metal oxides. By optimizing the length of the packed column, we successfully decreased the retention time of 2-CEES to ˜150 s. More importantly, the manufactured mini-GC device can be used to selectively detect a small amount of target gas from other gases such as NH3, NO, and CO. We demonstrated the excellent detection performance of the device for the real-time selective detection of 2-CEES.

Original languageEnglish
Pages (from-to)444-450
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume284
DOIs
Publication statusPublished - 2019 Apr 1

Fingerprint

gas chromatography
Gas chromatography
Semiconductor quantum dots
sulfides
quantum dots
Gases
sensors
Sensors
gases
Chemical Warfare Agents
chemical warfare
Mustard Gas
Chemical warfare
Carbon Monoxide
Oxides
metal oxides
analyzers
Metals
2-chloroethyl ethyl sulfide
Sulfides

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

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title = "Real-time selective detection of 2-chloroethyl ethyl sulfide (2-CEES) using an Al-doped ZnO quantum dot sensor coupled with a packed column for gas chromatography",
abstract = "We report a new portable chemical warfare agent analyzer for miniaturized gas chromatography (mini-GC), comprising a packed column and hydrothermally synthesized Al-doped ZnO quantum dots (AZO QDs). This device uses a small volume of the target gas (1 ml) without pre-concentration and can be used to detect 2-chloroethyl ethyl sulfide (2-CEES) gas, which is a mustard gas simulant, over a wide concentration range. The AZO QD (˜5 nm) sensor exhibited an outstanding sensing response (R) of 5,393 in detecting 20 ppm of 2-CEES; this performance is superior to those of other previously reported 2-CEES sensors based on semiconducting metal oxides. By optimizing the length of the packed column, we successfully decreased the retention time of 2-CEES to ˜150 s. More importantly, the manufactured mini-GC device can be used to selectively detect a small amount of target gas from other gases such as NH3, NO, and CO. We demonstrated the excellent detection performance of the device for the real-time selective detection of 2-CEES.",
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Real-time selective detection of 2-chloroethyl ethyl sulfide (2-CEES) using an Al-doped ZnO quantum dot sensor coupled with a packed column for gas chromatography. / Lee, Jun Ho; Jung, Hwaebong; Yoo, Ran; Park, Yunji; Lee, Hyun sook; Choe, Yong Sahm; Lee, Wooyoung.

In: Sensors and Actuators, B: Chemical, Vol. 284, 01.04.2019, p. 444-450.

Research output: Contribution to journalArticle

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AU - Lee, Jun Ho

AU - Jung, Hwaebong

AU - Yoo, Ran

AU - Park, Yunji

AU - Lee, Hyun sook

AU - Choe, Yong Sahm

AU - Lee, Wooyoung

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