Rapid, on-site detection of residual explosives based on a lab-in-a-capillary and UV fiber sensor

Ruliang Wang, Guang Yang, Junqi Zhang, Qi Li, Rongxin Fu, Jiancheng Ye, Tongzhou Wang, Ying Lu, Hong Zhou*, Guoliang Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

An integrated portable system based on a lab-in-a-capillary and a UV (190-400 nm) reflected fiber sensor was demonstrated for on-site detection of trace amounts of explosives in a micro-nanoliter droplet. The filtration and measurement of the residual explosive sample were integrated in a compact device. The micro-droplet (1 nL-1 μL) was loaded onto the capillary-end by the equilibrium between gravity and negative air pressure for UV spectral analysis. Moreover, a new mixed spectrum decomposition algorithm (MSDA) was used to calculate the concentration of multiple explosives in the soil of the explosion site. This system for real-time explosive analysis features a short sample preparation and analysis time (<5 s), low sample consumption (10 nL), wide detection range (1-250 ng μL-1), low detection limit (<10 pg), and is easy to disassemble and clean, which fulfills the requirements for on-site explosive detection.

Original languageEnglish
Pages (from-to)9628-9633
Number of pages6
JournalAnalytical Methods
Volume6
Issue number24
DOIs
Publication statusPublished - 21 Dec 2014
Externally publishedYes

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Wang, R., Yang, G., Zhang, J., Li, Q., Fu, R., Ye, J., Wang, T., Lu, Y., Zhou, H., & Huang, G. (2014). Rapid, on-site detection of residual explosives based on a lab-in-a-capillary and UV fiber sensor. Analytical Methods, 6(24), 9628-9633. https://doi.org/10.1039/c4ay02143f