The Study of Fabrication of the Liquid Core Waveguide Nutrient Sensor

摘要:

文章预览

A novel nutrient sensor using liquid core waveguide technique is reported, implementing Teflon AF 1601S coated microchannels. Straight PDMS microchannels replicated from a master were coated with Teflon AF 1601S and sealed with a Teflon AF 1601S coated Pyrex 7740 wafer. It formed a liquid core waveguide with a low index of refraction channel in which a high index aqueous solution was flowed. Light generated by a fiber-coupled tungsten halogen lamp propagated by total internal reflection to the end of the channel where the light was detected using a CCD array spectrometer. There is a dramatic difference between channels with and without a Teflon coating. The absorbance response of this sensor varies linearly with concentration. This innovative technique provides a potentially low-cost and high efficient approach to fill the inspection technology gap between in-situ and laboratory analyses. It is believed that the novel process is expected to give an impact to the aqueous inspection and to create a highly value-added technology in optical test, measurement industry.

信息:

期刊:

编辑:

Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO

页数:

425-430

引用:

C. W. Wu et al., "The Study of Fabrication of the Liquid Core Waveguide Nutrient Sensor ", Key Engineering Materials, Vols. 364-366, pp. 425-430, 2008

上线时间:

December 2007

输出:

价格:

$38.00

[1] J.H. Ryther and W.M. Dunstan: Science Vol. 171 (1971), p.1008.

[2] O.C. Zafiriou, L.A. Ball and Q. Hanley: Deep Sea Res. Vol. 39 (1992), p.1329.

[3] C. Garcide: Mar. Chem. Vol. 11 (1982), p.159.

[4] X. Kang, S.K. Sharma, G.T. Taylor and D.W. Muenow: Appl. Spectrosc. Vol. 46 (1992), p.819.

[5] R.D. Waterbury, W. Yao and R.H. Byrne: Anal. Chim. Acta Vol. 357 (1997), p.99.

[6] B.J. Marquardt, P.G. Vahey, R.E. Synovec and L.W. Burgess: Anal. Chem. Vol. 71 (1999), p.4808.

[7] Information on http: /www. dupont. com/teflon/af/performance. html.

[8] P.K. Dasgupta, Z. Genfa, S.K. Poruthoor, S. Caldwell and S. Dong: Anal. Chem. Vol. 70 (1998), p.4661.

[9] W.S. Yao, R.H. Byrne and R. D. Waterbury: Environ. Sci. Technol. Vol. 32 (1998), p.2646.

[10] E.T. Steimle, E.A. Kaltenbacher and R.H. Byrne: Mar. Chem. Vol. 77 (2002), p.255.

[11] A. Datta, I.Y. Eom, A. Dhar, P. Kuban, R. Manor, I. Ahmad, S. Gangopadhyay, T. Dallas, M. Holtz and H. Temkin: IEEE Sens. J. Vol. 3 (2003), p.788.

DOI: https://doi.org/10.1109/jsen.2003.820343

[12] R. Manor, A. Datta, I. Ahmad, M. Holtz, S. Gangopadhyay and Tim Dallas: IEEE Sens. J. Vol. 3 (2003), pp.687-692.

[13] J.W. Hong, T. Fujii, M. Seki, T. Yamamoto and I. Endo: Electrophoresis Vol. 22 (2001), p.328.

[14] Information on http: /www. unice. com. tw.

[15] P. Dress, M. Belz, K.F. Klein, K.T.V. Grattan and H. Franke: Sens. Actuator B-Chem. Vol. 51 (1998), p.278.