Abstract
In the design and realization of a portable chemical analysis system, adequate partitioning of reusable components and disposable components is demanded. Successful implementation of micromachined sensors in measurement instrumentation and interfacing between the micro- and macro-scale elements of the system require reliable methods for interconnection of these components. This work has investigated interconnection methods of disposable micromachined chip devices, reusable microfluidic packaging, and a hybrid fluidic interface system. Two novel solutions were developed which consist of a one-piece (type I) microfluidic package for flow-through analysis and a two-piece (type II) fluidic package for plug-in operation that could house a micromachined device in contact with liquid phase samples. These packages were designed to have compatibility with standardized tubing sizes and easy snap-in connectivity. The packages were tested mechanically and their applications were demonstrated with electrochemical sensors.
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