Optofluidic ring resonator sensors for rapid DNT vapor detection

文献信息

发布日期 2009-03-20

DOI 10.1039/B900050J

影响因子 4.616

作者

Yuze Sun, Jing Liu, Greg Frye-Mason, Shiou-jyh Ja, Aaron K. Thompson, Xudong Fan

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摘要

We demonstrated rapid 2,4-dinitrotoluene (DNT) vapor detection at room temperature based on an optofluidic ring resonator (OFRR) sensor. With the unique on-column separation and detection features of OFRR vapor sensors, DNT can be identified from other interferences coexisting in the analyte sample mixture, which is especially useful in the detection of explosives from practical complicated vapor samples usually containing more volatile analytes. The DNT detection limit is approximately 200 pg, which corresponds to a solid phase microextraction (SPME) sampling time of only 1 second at room temperature from equilibrium headspace. A theoretical analysis was also performed to account for the experimental results. Our study shows that the OFRR vapor sensor is a promising platform for the development of a rapid, low-cost, and portable analytical device for explosive detection and monitoring.

期刊推荐

Chinese Journal of Chemistry

Bioorganic & Medicinal Chemistry

Colloid Journal

Journal of Asian Natural Products Research

Herald of the Russian Academy of Sciences

Atomization and Sprays

Journal of the Indian Institute of Science

Topics in Catalysis

Biocatalysis and Biotransformation

Polycyclic Aromatic Compounds

来源期刊

Analyst

CiteScore: 7.8

自引率: 5.6%

年发文量: 653

Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.

Optofluidic ring resonator sensors for rapid DNT vapor detection

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