NEW PRODUCTS permits strip chart recording of either mass ratios or mass spectra when used with the firm's time-of-flight mass spectrometer. Sensitive enough to easily detect single ion impulses, it has a dynamic range of 1 million. F r o m one to six channels can be incorporated into this output system. R a t i o o u t p u t has the advantage of being insensitive to all spectrometer variables t h a t affect all peaks proportionately. P-l 1
Metallographic Equipment Boder Scientific has taken on a new line of metallographic equipment pro duced in D e n m a r k by Struers Scientific I n s t r u m e n t s . Line includes three pregrinders, three electropolishers, four diamond-abrasion polishers, and polish ing disks. I t also handles the Struers hydraulic mounting press for embed ding specimens in conductive or ordi n a r y resins, as well as the resins. P-l 2
Turbidity Titrator C. A. B r i n k m a n n & Co. announces the A G F A turbidity titration p h o t o m eter, a G e r m a n instrument, used to determine molecular weight distribu tion in polymers. T h e photometer, which can be used in full daylight, op-
millivolt measurement. All controls are grouped on the front of the instrument, and the scales for current and voltage are in the same field of view. T h e graph is in horizontal position. Said to have high sensitivity, it is possible under favorable conditions to deter mine, for instance, metal ion concentra tions to 1 0 — 7 molar. P-T4
erates on t h e single beam principle. Operations at t e m p e r a t u r e s u p to 100° C. is possible since the chamber for the cuvette is well insulated, can be tempered accurately, usually by cir culating water. P-l 3
Rotating Viscometer T h e electric rotational viscometer, distributed b y Brinkmann, has a wide range of use, including advanced rheological experiments as well as short and accurate viscotests. I t can be used as an indicating, recording, and controlling viscometer. Called the Rotovisco, the instrument is designed so t h a t viscosity
Recording Polarimeter B r i n k m a n n is distributor of the M e t r o h m Polarecord E261, a Swiss di rect-reading instrument for polarography, amperometric titration, and
Harvey-Wells presents
Safety Relief
Type
OXYGEN FILLING CONNECTION
A COMPLETE NMR* FIELD C O N T R O L S Y S T E M F O R L E S S T H A N $3,000 • Up to 30,000 gauss • Stability exceeds 1/10 5
· Adaptable · Compact
NMR instrumentation, electromagnets and power supplies, error signal comparator . . . digital components. "Nuclear Magnetic Resonance
Permits close regula tion of gas flow · P r e v e n t s dangerous overcharging · Elim inates accidental gain.damage · Shows both tank and bomb pres sures in atmosphen Ν • Can be used with any P a r r oxygen bomb. All new Parr calori meters and oxygtn bomb apparatus arcnow equipped w i t h this improved filling arrangement. fJ.j'-i it:m yt.ur I'jn Oialvr. '•> .
