Trends in microfluidic systems for in situ chemical analysis of natural waters

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• 作者：Adrian M. Nightingale^a ; ^{a.nightingale@southampton.ac.uk" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Alexander D. Beaton^b ; ^{a.beaton@noc.ac.uk" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Matthew C. Mowlem^bAuthor Vitae
• 关键词：Microfluidics ; Lab-on-chip ; Chemical sensors ; Optical sensors ; In situ ; In-the-field ; Environmental chemistry ; Analytical chemistry ; Oceanography
• 刊名：Sensors & Actuators: B. Chemical
• 出版年：2015
• 出版时间：31 December 2015
• 年：2015
• 卷：221
• 期：Complete
• 页码：1398-1405
• 全文大小：2240 K

文摘

Spatially and temporally detailed measurement of ocean, river and lake chemistry is key to fully understanding the biogeochemical processes at work within them. To obtain these valuable data, miniaturised in situ chemical analysers have recently become an attractive alternative to traditional manual sampling, with microfluidic technology at the forefront of recent advances. In this short critical review we discuss the role, operation and application of in situ microfluidic analysers to measure biogeochemical parameters in natural waters. We describe recent technical developments, most notably how pumping technology has evolved to allow long-term deployments, and describe how they have been deployed in real-world situations to yield detailed, scientifically useful data. Finally, we discuss the technical challenges that still remain and the key obstacles that must be negotiated if these promising systems are to be widely adopted and used, for example, in large environmental sensor networks and on low-power underwater vehicles.