Optical free piston cell with constant diameter for use under high pressure

Koji Ishihara, Masahiro Takagi

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An optical free piston cell (a modified le Noble and Schlott type optical cell) is described for use in spectrophotometric study under high pressure. The cell consists of a disk, a cylinder, and a free piston, which are made of quartz and are mounted within a stainless-steel holder. A small amount of sample solution (∼0.6 cm3), which only contacts with quartz, is required for measurements. The path length is fixed (1.2 cm) at ambient pressure, but is self-adjusting at elevated pressure so that no compressibility corrections are necessary.

Original languageEnglish
Pages (from-to)513-514
Number of pages2
JournalReview of Scientific Instruments
Issue number2
Publication statusPublished - 1994 Dec 1


ASJC Scopus subject areas

  • Instrumentation

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