OAK RIDGE NATIONAL LABORATORY - Analytical ... - ACS Publications

May 17, 2012 - OAK RIDGE NATIONAL LABORATORY. Anal. Chem. , 1961, 33 (3), pp 90A–90A. DOI: 10.1021/ac60171a779. Publication Date: March 1961...
0 downloads 0 Views 450KB Size
AINSWORTH Premium Quality at Competitive Price

ISOTOPES for Your Development Work

RIGHT• A• W E I G H One-Pan Analytical Balance

FAST ACCURATE EASY TO USE

Oak Ridge National Laboratory offers more than 300 radioactive and stable isotope products. RADIOISOTOPES

Processed Solutions — 90 processed ra­ dioisotopes may be obtained, including many carrier-free and high specific activ­ ity products. Now Available — Iridium-192 gamma sources with specific activity up to 100 curies per gram, and cobalt-60 radiogra­ phy sources 1/8 and 1/16-inch in diame­ ter with specific activity greater than 100 curies per gram. At a reduced price, carbon-14 barium carbonate is available at $9.50 per millicurie.

CONTROLS Ail controls on front of case, dearly designated. Independent pan brake stabilizes the pan before beam is released. Simple mechanical zero adjustment, targe range, no distortion. Easy-working doors with comfortable finger-grips.

READOUT

STABLE

Eye-level, in-line, unobstructed readout. Wide-spaced lines on projected scale. Projection scale in recessed shadow box. Light filter in optical path cuts out glare.

FAST... weighing read results. ACCURATE.. errors, gives

procedure

—* —

j^ÊÊÊÊÊÊÊÊÊÊÊÊÊÊmÊÊIÎÊÊÊÊÊÊÊÊÊM

fc^**

J,

fi£VDiiflEflflaHElPΐΤ· * t v J J W * î i i * v * Î Î , ; Î k . l · • • • - • - • • • ·· S S f i S t J S f p , Γ ^ ί ν ! - ,1-, .[Λ\Ζ i

is simply

to load pan, dial

"

K*S ' Μ>β _ ' fik

weights,

ISOTOPES

More than 200 stable isotopes available from 50 elements Chemical processing and target fabrication services also of­ fered. . . . Ultra-high isotopic purity in a number of isotopes. For information or literature, write to : Isotopes Division, Oak Ridge National Laboratory, P . O. Box X, Oak Ridge, Tennessee.

.substitution weighing eliminates arm-length constant sensitivity and accurate values.

EASY T O USE .. .anyone can weigh quickly and accurately with the Right-A-Weigh ... trees skilled people for other work. Capacity: 200 g. Sensitivity: 1/10 mg. Readability: 1/20 division on projected scale using vernier. Reproducibility: ±0.03 mg. Special Models: SCX, explosion proof; SCD, diamond balance calibrated in carats; SC 300, 300 gr. cap.

Symbol of Qualify and Progress Since 1880. WRITE

FOR

WM.

BULLETIN

659.

AINSWORTH

MADE IN U.S.A.

& SON,

2151 LAWRENCE ST. · TELEPHONE ALpine 5-1723

·

ANALYTICAL CHEMISTRY

Operated by UNION CARBIDE CORPORATION for the U.S. ATOMIC ENERGY COMMISSION

INC.

· DENVER 5, COLORADO

Circle No. 22 on Readers' Service Card 90 A

OAK RIDGE NATIONAL LABORATORY

Circle No. 97 on Readers' Service Card