imew!
Flash! And you've got a sample of an "intractable" in 3 minutes !
from...
B E L - A R T DISPOSABLE
CHROMATOGRAPHIC TUBES
NEW BARNES P Y - 2 PYROLYZER SAVES HOURS IN PREPARATION TIME If you're using slow, old-fashioned test tube methods to obtain readable sam ples of tough-to-analyze materials like carbon-filled rubbers and some plastics -here's a brand new time-saver for you. Generally, burning in a test tube, or dissolving a stubborn sample, takes at least 45 minutes . . . often more. The new Barnes PY-2 Pyrolyzer will do the job for you in three minutes. Here's all you do: Put a snippet of material-or a micro-spoonful of pow der, if that's what you're sampling-on the heating unit in the Pyrolyzer's va porizing chamber. Seal the chamber. Set a timer. Select your temperature. New Barnes
PY-2 Pyrolyzer,
Evacuate the chamber automatically. And flash! Your sample is volatilized and ready for analysis. In 3 minutes, instead of 45 or more, you're running a spectrum. Heat range on the new PY-2: variable to 1250°C. Timing range: from 1 to 15 seconds, or bypass the timer. Power: 115 VAC 60 cycles. Three kinds of pyrolysis chambers are available: Transmission conden sate cell, ATR condensate cell, trans mission vapor cell and holder. If you want to get more done in busy days . . . save time with the new Barnes PY-2 Pyrolyzer. Write or phone for complete details. showing
types of pyrolysis
chambers
available.
These disposable polypropylene chromatographic tubes, or columns, are excellent for all types of qualita tive, semi-qualitative and many quanti tative analyses. The pore size of the support disc is 1/64" diameter. The columns may be used for continuous flow processes with or without fraction collector as shown.
Tube is 5 / 8 " I.D. χ 6" long and holds 30 ml; fittings ac cept 1/4" to 3 / 8 " I.D. tub ing. Replacement columns are available separately with out end fittings. No need to buy additional end fittings.
Special plastic clamp is available to hold tube verti cal on support rod. Available at your local laboratory supply house. Send for our catalog supplement listing many NEW items . . . just off tfie press! For your FREE copy write Dept. A-2
BARNES ENGINEERING COMPANY INSTRUMENT
DIVISION/30
Commerce
Rd. /Stamford,
Circle No. 81 on Readers' Service Card
182 A
.
ANALYTICAL CHEMISTRY
Conn. / Telephone
BEL-ART PRODUCTS PEQUANNOCK, N . J . 0 7 4 4 0
203 348-5381 Circle No. 86 on Readers' Service Card
