1． The State Key Laboratory of Rare Earth Materials Chemistry and Applications, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871，China 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences，Shanghai 200050，China
Abstract：The combination of mid-IR fiber optics and FTIR has made the non-invasive determination of samples in situ, with long distances， and in vivo possible. In this paper domestic mid-IR fiber optics was improved to investigate the transmission ability of fiber optics and its application to the sample determination. New design was applied to obtaining one bare fiber optics, which has a minor energy loss and higher signal-to-noise ratio. The spectra of H2O/EtOH and tissue samples were measured using the new designed fiber optics and the results show that home-made mid-IR fiber optics can be applied to the field of determination of general and biological samples.
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