if you're
CREATIVE
we want to meet you at the 1968 Pittsburgh Conference See h o w you can create special purpose instru mentation—tailored to your needs! W e have produced a versatile system which provides the building blocks common to most instruments. The MP-SYSTEM will perform almost any photo- or electrometric instrument function you can devise.
SEND ME the following illustrated MP-System laboratory manuals: Π MPI Applications Notes Vol. 1 $1 Π MPI Operation and Applications Manual $2 • New Laboratory Textbook by Dr. L. P. Morganthaler $3.50 Name
_State_
City—
McKEEPEDERSEN
INSTRUMENTS
BOX 322, DANVILLE, CA 94526 Circle No. 163 on Readers' Service Card ·
Λ^> The Uni-Die is a 13-mm evacuable KBr die-holder. The pellet is formed in the die barrel which is then mounted in the infrared spectro photometer beam for spectral analy sis. The careful manipulation of the pellet with risk of breakage and con tamination is eliminated. The UniDie comes in two sizes, one which fits the micro sampling space of PerkinElmer spectrophotometers and the other which is for use in any instru ment. Wilks Scientific Corp., 140 Water St., Box 4 4 1 , South Norwalk, Conn. 06856 410 Automatic-Derivative Thermobalance Model T-l simultaneously records the temperature (as compared to a standard) and the weight of a sample. The sample can be subjected to a pro grammed temperature cycle, gases, vacuum, or other programmable en vironments, with all changes recorded directly or as a rate of change (deriva tive). Samples are contained in a horizontal tube and displaced hori zontally from the balance mechanism, resulting in minimized thermal effect on the mechanism and more accurate re sults. Plug-in modular design increases versatility so that the basic instrument can be used as an automatic thermo balance, an automatic derivative ther mobalance, or an automatic derivativedifferential thermobalance. Voland Corp., New Rochelle, Ν. Υ. 411 Liquid Scintillation Spectrometer System
Street-
170 A
NEW PRODUCTS
ANALYTICAL CHEMISTRY
The Coru-Matic II is compatible with gamma scintillation or planchet counting systems and is also expand able to two or three channel operation. It features a fully automatic 100sample changer with external standard, a sample changer control with six pro gram selections, multiple sample repeat, and a solid state scaler, timer, high voltage spectrometer with automatic background rate subtraction, autocycle display, and low activity sample rejec tion. Data printout may be lister, calculator, typewriter, teletype, or tapepunch. Traccrlab, Trapelo Rd., Waltham, Mass. 02154 412
Look what tiny tube fittings can make To any Chromatronix I fitting To pipe
Valve
"T" joint ι
To luer
To glass To metal tubing
Chemically inert * No mixing cavi ties • Quick connecting · Leakproof at 5 0 0 p s i . Cheminert™ valves and fit tings will cut hours from the time you spend assembling tubing for chemical analysis. You can connect and d i s c o n nect everything with your hands, making finger-tight joints that w o n ' t leak at 500 psi. Π There are fittings for 1 / 1 6 " and 1 / 8 " t u b i n g . T h e y h a n d l e n e a r l y any fluid because only c h e m i c a l l y inert mate rials—Teflon, Kel-F and glass —touch the stream. All are designed with zero dead volume, so there will be no m i x i n g . Π Other advanced Chromatronix apparatus includes precision pumps that p r o d u c e unfluctuating flows at pressures up to 500 psi, and high-resolution c o l u m n s for liquid chromatography. Send for catalog.
CHROMATRONIX
Chromatronix, Incorporated, 2743 Eighth St., Berkeley, Calif. 94710. Phone (415) 841-7221 Circle No. 31 on Readers' Service Card
