T E C H N I C O N
now more than ever
radiation monitoring you can bank on
n e w p e a c e of m i n d comes to t h e wearer of this badge. N o t only does he always know the full score on his personal exposure, but he can confi dently rest on its accuracy, too. Con tinuous technical improvement in Gardray film processing and densi tometry (direct electronic I B M re cording now eliminates all possibility of h u m a n error) gives him this pos itive protection . . . G A R D R A Y records exposures as low as 1 mr, as high as 300,000 mr. G A R D R A Y is sensitive to gamma and x-radiations and beta radiation: reports them separately. G A R D R A Y reports are cumulative tallies: (1) current week (2) 13-week total (3) year's total to date. G A R D R A Y reports are prompt (two days in and out, average). G A R D R A Y identification is doublysure: (1) printed on wrapper (2) x-rayed on film.
PICKER
Product Capsules Supplies. New catalog lists complete lab supplies. 112 Table Tops. Data on stone lab table tops. 1 Taper Sleeves. "Quorn" self-lubricat ing standard taper sleeves. 156 Tapes. Samples of pressure-sensitive time tapes. 85 Thermistors. Catalog with data on more than 650 stock items. 108 Timers. Catalog on Gallet timers and chronographs. 86 Titrators. Provides automatic titra tions and pH measurements. 110 Tubing. 28-page bulletin on clear, flexible, plastic tubing. 155 Viscosimeters. Unit shows absolute viscosity in centipoises. 45 Ware, Fused Quartz. Technical data on "Vitreosil" fused quartz ware. 99 Ware, Glass. Catalog on complete line of "Pyrex" labware. 35 Ware, Glass. Bulletin on line of lime labware. 132 Ware, Plastic. Catalog on plastic jars, flasks, funnels, etc. 144 Ware, Platinum. New catalog on platinum lab apparatus. 26 Ware, Platinum. Data on platinum clad crucibles, evaporation dishes. 4 3 Ware, Platinum. Bulletin on plati num clad stainless steel labware. 70 X-Ray Gage. Emission gage monitors up to 5 elements simultaneously. 46 X-Ray Units. For x-ray diffraction and fluorescence analysis. 147
Product Capsules
fl UTOMATIC GRflO ϋί;ί V A R I A B L E
D E V I C E · ^ produces any buffer requirement in pH or concentration for chromatography vbhjnghjghjghjghjghjghjghjghjghjgh ghjghjghjghjghghjghjghghghjghjghjghj
DISCRETE BUFFER CHANGEOVERS as an example . . .
to PH to PH
5.28
4.25
from pH 3.25
...
usua/
in
A M I N O ACID CHROMATOGRAPHY instead the Autograd automatically sup plies a buffer gradient in a continuous, flow.** uninterrupted
Th/s solution » arrangement of pH values in the AUTOGRAD t automatically produces the gradient
below.
The- Autograft* starts the column elufion delivery at pH 3.05, a» shown above, and progressively Un a con tinuous flow, increase* to pH 6.85. Not only Is each discrete buffer value systematically produced, but the resulting gradient includes all of the intermediate values as graphed below
. . . an AC service for subscribers GARDRAY cumulative TALLY You can start enjoying this protection (and acquiring this peace of mind) any time. Right now, if you wish, by calling any Picker X-Ray local office. Or write to
PICKER X-RAY CORPORATION 2 5 So. Broadway, White Plains, N . Y . Circle No. 170 on Readers' Service Card
Presenting short "refreshers" on last month's ads in order to help you obtain free information of value to both you and your company Circle No. 158 on Readers' Service Card
tieielofrl nr iki \ "•,.««/ fi.11. t - ' Ills'ltuf, \'UlOti'il r l'Util .»r ( of Health, V. 5. Dtpn tmtnt or iU aftli, h Ίι r :tion, t.nd P'eljurt·, Publtx Htnlth S*ri κ c Hetht **/rt, Morytrind. *"*Pracedure d e v e l o p e d by Kwf Α. /Ίι _, \atiunul Im,.tuW n» Of.itul Rnvarrn, \n',, nal ln»m..f 0/ llt.Mli. 'Reference "I ..itaut" (,'t.du 'it fip'lf tor (l·r^ιrr.(lfaςrι.l>h'^,,, /.. 4.. Pfi"Ts„r. i.'t H /.Mfci/v Anal, ri·»»*., loi. il, \n 34.
*Send f o r Brochure N o . A G I , and further Data, to:
Technicon Chromatography Corp. R e s e a r c h Park · Chauncey, N e w York
