Sampling flow cell with diamond window

Details Sampling flow cell with diamond window Sampling flow cell with diamond window

1988-11-02

1990-03-20

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356246, G01N 2115

Patent

active

049104039

ABSTRACT:
A flow cell is utilized on-line in the analysis of molten polymer and includes diamond windows for passing mid to far infrared radiation through the molten polymer flowing through the flow cell, the diamond windows being in the form of relatively thin disk-like elements each affixed to a carrier member in the wall of the flow cell and spanning a relatively large diameter bore in the carrier member, the overall diameter of each disk-like element being only slightly greater than the corresponding bore in the carrier member such that the volume of diamond is minimized in relation to the diameter of the windows.

REFERENCES:
patent: 4715711 (1987-12-01), Dunn
patent: 4717827 (1988-01-01), Harvey
J. M. Alberigs and J. M. L. Penninger, "An Improved Window Seal for High Temperature-Pressure Spectroscopic Flow Cells." Review of Scientific Instruments, vol. 45, No. 3 (Mar. 1974) pp. 460-461 [.COPYRGT. 1974 by the American Institute of Physics].
L. M. Toth, J. P. Young and G. P. Smith, "Diamond Windowed Cell for Spectrophotometry of Molten Fluoride Salts." Analytical Chemistry, vol. 41, No. 4 (Apr. 1969) pp. 683-685.

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