Far Infrared Sealed Liquid Cell with Polyethylene Windows
Liquid cells of constant path length with high density polyethylene windows for the it region are generally difficult to obtain. Most commercially available 1 polyethylene cells are sufficient only for survey spectra and cannot be used for careful measurements during long or repeated scans since repeatability and adequate absorbance measurements 2 are difficult to obtain. Moreover, the measurement of air sensitive solutions is often unsuccessful because air leaks develop and because determining the actual cell thickness is not easy.
KeywordsCorn Acetone Petroleum Polyethylene Syringe
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- 1.Barnes Engineering Company, Beckman Instruments, Inc. and other companies.Google Scholar
- 2.Beckman Instruments markets a “vacuum-tight” cell in path lengths to 1 mm.Google Scholar
- 3.Brass will amalgamate with the mercury of the gasket producing a better seal than that with stainless steel.Google Scholar
- 4.Marlex brand polyethylene from Phillips Petroleum Company, Bartlesville, Okla.Google Scholar