Distillation

Distillation

“…THE same general trends in analytical distillation have prevailed in 1949 as in recent years, and many of the statements made a year ago (71) still apply. Greatest activity has been shown in the design and testing of apparatus for the specialized conditions of vacuum and micro or semimicrodistillation.…”

Current Trends in Analytical Chemistry

“…Apparatus have been described for the determination of ash, carbon, hydrogen, nitrogen, halogen, sulfur, and other elements. In the petroleum field instrumentation has been recently described, among other purposes, for long-term analytical distillation and aniline point determination (25,35).…”

“…In many ways the Podbielniak apparatus represents the first important instrumentation of an analytical technique. A considerable number of packing materials for distillation columns of high efficiency of separation have been developed, such as those of Podbielniak, Fenske, Stedman, and Lecky and Ewell (35).…”

Gas Analysis

“…Distillation processes form one of these special domains. general review is available (254), and a brief discussion of lowtemperature analytical distillations (138) may be of interest.…”