A fraction collector for students

takeoff gear projects through a hole in the exact center of the top. The moving arm of the collector consists of a one-hole, No. 5 rubber stopper and a 14-cm long ...

The only special component required is a 0.25 revolution/hour synchronous motor. Keywords (Audience):. Second-Year Undergraduate. Keywords (Domain):.

May 1, 1979 - A student synthesis of the housefly sex attractant. Journal of Chemical Education. Cormier, Duc Phan, Graddis and Singer. 1979 56 (5), p 345.

A siphon, especially suit- able for delivering small fractions (1 ml.) with good reproducibility. (better than 1 %), is used as a fractionating device. Siphon devices ...

available commercially, among them the ex- cellent apparatus designed by Stein ... The present model, however, op- erates according to a different principle, ...

Automatic Fraction Collector. Dean Fraser, Virus Laboratory, University of California, Berkeley, Calif. The great rise in popularity of chromatographic separations.

the siphon discharge tube over the sample receiver (T) held in the circular rack. In this position the siphon loads completely and discharges. After discharge the siphon tips up, the upper swing stop pin clears the screw hook, and the lower one eugag

the siphon discharge tube over the sample receiver (T) held in the circular rack. In this position the siphon loads completely and discharges. After discharge the.

fraction collectors, such as the Techni- con photoelectric fraction collector (the design shown in the figure is for the. Technieon apparatus). The columns were.

impulse from a positive, direct-contact, drop- counter accumulator (PedersenElectronics Co., Lafayette, Calif.). DESCRIPTION which momentarily removes.