Title :
Detection of lead contamination of water and VOC contamination of air using SOI micro-optical devices
Author :
Saunders, John ; Dreher, Marian A. ; Barnes, Jack A. ; Crudden, Cathleen M. ; Du, Jinyang ; Loock, Hans-Peter ; Xu, Dan-Xia ; Densmore, Adam ; Ma, Rubin ; Janz, Siegfried ; Vachon, Martin ; Lapointe, Jean ; Delâge, André ; Schmid, Jens ; Cheben, Pavel
Author_Institution :
Dept. of Chem., Queen´´s Univ., Kingston, ON, Canada
Abstract :
Micro-photonic SOI Mach-Zehnder interferometers were coated with solid-phase micro-extraction materials derived from polydimethylsiloxane to enable sensing of volatile organic compounds of the BTEX class in air. A different coating based on functionalized mesoporous silicates is used to detect lead Pb(II) with a detection limit of <;; 100 ppb in water.
Keywords :
lead; mesoporous materials; micro-optics; silicon-on-insulator; SOI; VOC contamination; lead contamination; mesoporous silicates; microoptical devices; microphotonic; polydimethylsiloxane; solid phase micro extraction materials; volatile organic compounds; water; Coatings; Films; Mesoporous materials; Refractive index; Sensitivity; Sensors; Silicon compounds; chemical sensor; environmental monitoring; interferometer; refractive index; solid-phase microextraction;
Conference_Titel :
Group IV Photonics (GFP), 2010 7th IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6344-2
DOI :
10.1109/GROUP4.2010.5643389
