NEWS
BLUE M
®
Magni Whirl
KEMULA, Varsovie.
Patents Pending
NO MOTORS · NO STIRRERS! 1 0 0 % WORKING SPACE
·
verselle Urtitersubstanz. P . S. TUTUNDZIC, Belgrade. Application de la goutte pendante de mercure à l'analyse quantitative de minimes quantités de différents ions. V.
WIDE RANGE OF TEMPERATURES
Anodic Stripping Voltammetry with Mercury Electrodes. Potential-step and Current-step Methods. G. MAMANTOV, P.
PAPOFF,
AND P .
DELAHAY,
Baton
Rouge. Magm-Whirl Baths OBSOLETE conventional baths using motors and which allow only a partial working space.
^wl
July 24 Rotated Dropping Mercury Electrode. I. M . K O L T H O F F AND Y. OKINAKA, Min-
Magnt'Whirl Baths have built-in automatic stirring and circulating systems for maximum uniformity and superior results. Magnetic pumping action gives automatic gentle agitation in all areas of bath—irrespective of work load.
70e«*/
Magni-Whirl Baths available for ALL NEEDS — COMPETITIVELY PRICED
l-.HIIH.'MIUIJ
• • • • •
Utility Water Baths (I00°C.) Visibility Jar Baths (70° and I00°C.) Utility Oil Baths (180° and 260°C.) Refrigerated Baths (0° to + I 0 0 ° C . ) Super-sensitive Baths (I00°C.)
•
H y d r o m e t e r J a r Baths ( 7 0 ° C . )
MORE CONVENIENT ·
SAVES COST AND TIME
·
MORE EFFICIENT
neapolis. The Use of the Rotated Dropping Mercury Electrode in Polarographic Analyses and Amperometric Titrations of Micromolar
Solutions.
NOBUYUKI
TANAKA,
Sendai. Cinétique d'adsorption et processus à l'électrode. P . DELAHAY, Baton Rouge. Electroseparation of Traces of Elements Using Potentiostats. L. ROGERS, R. C. D E G E I S O , AND C. F . MORRISON, J R . , Cam-
bridge, U. S. A. New Techniques in Radiological D e terminations Using Gamma Scintillation Spectrometry and Polarography. L. LOVE, San Francisco.
Eine neue Théorie der Elektrolyse und der
Redoxydationen.
A. SCHLEICHER,
Aachen. Oszillopolarographische
Mikroanalyse.
R. KALVODA, Prague.
BLUE M ELECTRIC CO. miiTT».um:n'n«niuunnm Manufacturers
of orens,
furnaces
and related
temperature
control
equipment.
Square Wave Polarography and some related techniques. G. C. BARKER, Harwell. Oszillopolarographische Analyse, VON PLETICHA, Prague.
Oszillopolarographische Analyse.
NiW HEAVY DOTY SOLUTION BALANCE
H.
BERG, Jena.
Anwendungmôglichkeiten der Hochfrequenzmesstechnik in der analytischen Chemie. F . OEHME, Jena. Newer Methods for the Measurement of electrolytic Conductivity. V. S. G R I F -
ΤΕΓΧ AND Y. CONSEILLER, Paris.
whk HANDY WEIGHT RACK
FITHS, London.
Another improvement on a fine balance! This handy weight carrier rack puts the attachment weights within easy reach o f the operator. Balance is equipped with stainless steel platform and beams. Has self-aligning bearings.
Emploi du courant alternatif dans les méthodes électrochimiques d'analyse. I .
Titrimètre à haute fréquence.
J. CotTR-
EPELBOIN, Paris.
Instrumental Analysis Course at RPI Maximum Corrosion Protection
High Sensitivity Long Life
Easy Foster Reading
MODEL 119-S for complete information write FREE bulletin
for
OHAUS
SCALE
CORPORATION
lOSO COMMERCE UNION, NEW
AVE. JERSEY
For further information, circle number 32 A on Readers' Service Card, page 77 A 32 A
·
ANALYTICAL CHEMISTRY
A n intensive course in instrumental analysis is being offered b y t h e D e p a r t m e n t of Chemistry, Rensselaer Polytechnic I n s t i t u t e , August 12 t o 23. T h i s is t h e second year t h a t this lecture-laboratory program h a s been offered t o chemists a n d chemical e n gineers in industry a n d teaching. Stephen E . Wiberley a n d R o b e r t A. Osteryoung of R P I will direct t h e course. Lecturers will include experts in t h e fields of x-ray analysis, determination of organic structures b y p h y s ical methods, spectrastructure correlations in t h e infrared, emission spectroscopy, a n d organic analysis b y electrometric methods. L a b work will involve use of a wide variety of instrumentation. Closing date for registration, which is limited, is August 1. F u r t h e r details
