Abstract
A NEED exists for a method of detecting small amounts of chemicals in air and other gases, and in solutions, simply, and with a high degree of sensitivity. We have developed a new technique based on the concept of using waveguide phenomena in combination with chemical reactions. This technique is applicable to a wide variety of chemical reactions, including biochemical systems, provided that they cause a change in light transmittance by virtue of a change in colour, refractive index, or light scattering. Both real-time and cumulative measurements are possible.
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References
Kapany, N. S., Fiber Optics (Academic, New York, 1967).
Kapany, N. S., and Burke, J. J., Optical Waveguides (Academic, New York, 1973).
Feigl, F., Spot Tests in Organic Analysis (Elsevier, New York, 1958).
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HARDY, E., DAVID, D., KAPANY, N. et al. Coated optical guides for spectrophotometry of chemical reactions. Nature 257, 666–667 (1975). https://doi.org/10.1038/257666a0
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DOI: https://doi.org/10.1038/257666a0
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