cumulative analytical chemistry - ACS Publications


cumulative analytical chemistry - ACS Publicationspubs.acs.org/doi/pdf/10.1021/ac60236a786SELF-BALANCING. POLARIMETER. P...

2 downloads 70 Views 236KB Size

01,076

3RD

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.

The third ANALYTICAL CHEMISTRY IN­ DEX contains a complete author and subject

index

of every

article and

feature printed in ANALYTICAL CHEM­ ISTRY during the period 1959-1963, vol­ umes 31 through 35 inclusive.

This

useful reference volume costs only $7. Use the space below to order your copy of this important index today.

Reprint Department ACS PUBLICATIONS 1155 16th St., N.W./Washington,

D. C.

20036

Gentlemen: Please accept this as my order for copies

of

t h e third

CUMULATIVE

ANALYTICAL CHEMISTRY INDEX (19591963) at $7 each.

Π My payment is enclosed. D Bill me. Π Bill company.

NAME

MAILING ADDRESS

CITY

STATE

COMPANY NAME

PERKIN-ELMER Circle No. 190 on Readers' Service Card 90 A



ANALYTICAL CHEMISTRY

Signature -

2IPCODE