SPECIALIZED INSTRUMENTS CORPORATION - Analytical Chemistry

SPECIALIZED INSTRUMENTS CORPORATION. Anal. Chem. , 1953, 25 (2), pp 16A–16A. DOI: 10.1021/ac60074a717. Publication Date: February 1953...
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ANALYTICAL CHEMISTRY

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ANALYTICAL \ ULTRACENTRIFUGE 4tG,*tcUwd t&MMCf&ÙUt

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A RESEARCH T O O L for the centrifugal purification and molecular-weight determina-

refrigerating system for keeping ro­

tion of such macromolecules as proteins,

tors at controlled temperatures; and

viruses, polymers, enzymes, hormones, and

vacuum pumps which provide atmos­

chemical precipitates; the Spinco Model Ε

pheres down to 10"4mm of mercury.

Ultracentrifuge combines all operations in a single cabinet.

CONTROLS AND INSTRUMENTS are included to maintain average drive-

OPERATING FEATURES include a

speed accuracy automatically within 0.1

70,000-rpm quiet electric drive designed for

per cent of setting; to set operation of

years of service and arranged for easy removal

automatic camera both for exposure and

and exchange; a selection of analytical and

photo-interval; to read rotor tempera­ tures; to select one of three graded brak­

preparative rotors which are interchangeable

ing rates; to read motor voltage and

and provide forces up to 260,000 times grav­

current; to read vacuum; and to actuate

ity operating in a heavily-armored vacuum rotor chamber; an optical system of the Philpott-Svensson refractive-index type with

the camera manually. Interlocks are pro­ vided to insure safe operation by indi­ viduals without extensive training.

viewing screen, automatic camera, and high-

Send for

intensity light source for analytical work; a

complete details.

SPECIALIZED I N S T R U M E N T S

CORPORATION

607

O'NEILL

AVE.

·

BELMONT,

CALIFORNIA

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