performance-proved instruments for POLARIMETRY
CUMULATIVE ANALYTICAL CHEMISTRY INDEX 1959-1963
NEW AUTOMATIC SELF-BALANCING POLARIMETER PROVIDES PRECISE DIGITAL OPTICAL ROTATION MEASUREMENTS The Perkin-Elmer Model 141 Polarimeter assures you maximum accuracy and sim plest operation in measuring the optical activity of liquids and solutions. This instrument offers excellent reproduci bility of all measurements, including those in the UV region of non-visible spectral rays. Water-jacketed cells are used with a water-circulating thermostat to hold cell
temperature constant-making full use of the Model 141's unique measuring accu racy. Five turret-mounted filters allow measurements to be carried out on any one of these wavelengths: Hg 365 πημ, Hg 436 ίτιμ, Hg 546 πιμ, Hg 578 ηιμ. Να 589 πιμ—in conjunction with fixed sodium and mercury lamps. Since instrument controls have been sim p l i f i e d , no special q u a l i f i c a t i o n s are needed to perform routine analyses. Vis ual settings are excluded, and a digital readout to 0.001 angular degree requires no i n t e r p o l a t i o n , t h e r e b y e l i m i n a t i n g reading errors. As a precise analytic tool, the Model 141 has invaluable applications in structural analyses and physical research, as well as concentration determination. For com plete application information and spec ifications on the Bodenseewerk/PerkinElmer M o d e l 141 P o l a r i m e t e r , w r i t e Instrument Division, Perkin-Elmer Corpora tion, 702 Main Avenue, Norwalk, Conn.
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