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Jarrell Ash
practical directions. In organization, an analytical discussion of the most im portant synthetic resins is followed by a treatment of the analysis of coating materials ready for use, the identifica tion, and the estimation of their com ponents. The book is divided into three parts : analysis of oil-based coat ing materials ; analysis of lacquers ; and selected chapters on the analysis of coating materials. References are in cluded at the end of each chapter.
Convertible
EBERT SPECTROGRAPH Switches to direct reading analysis in less than a minute . . . determines up to 20 elements in two minutes . . . Now you can speed routine analyses photoelectrically, and still solve tough "odd sample" or research problems photographically — all with the same versatile instrument. No "attachments" to mount . . . no tedious realignment. With the turn of a single control you can convert from full-range spectrographic analysis to high speed direct-reading analysis of as many as 20 elements simultaneously. With the Jarrell-Ash 3.4 Meter Convertible Ebert Spectrograph, you'll enjoy flexibility that lets you tackle a greater variety of materials . . . analytical range to ferret out unsuspected trace elements . . . speed to handle more samples per hour — keep quality control in step with production. And add to these the footstep-saving convenience of a single basic instrument with all controls centrally grouped. Invite a Jarrell-Ash engineer to show you firsthand how the Convertible Ebert Spectrograph will make your analytical efforts more rewarding, your lab operations more productive and more profitable. •
Built-in direct reader photoelectric head fixed in permanent mount — no "attachments" to move or realign.
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Simple, trouble-free optical system — automatically in focus at all times.
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Direct reader dials compute during exposure — results can be read the instant ignition stops.
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Single grating delivers full 20" of stigmatic spectrum.
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Available as conventional spectrograph only, with provision for easily adding direct reader section later if desired.
32 Farwell S t r e e t , N e w t o n v i l l e 6 0 , M a s s a c h u s e t t s San Mateo, Calif. · Dallas, Texas · Tinley Park, III. · Pittsburgh, Penna. Costa Mesa, Calif. · Atlanta, Ga. · Detroit, Mich. · New Brunswick, N. J. CANADA: Technical Service Labs., Toronto, Ontario
JARRELL-ASH CO., 32 Farwell Street, Newtonville 60, Massachusetts MERELY SIGN AND
We're interested in learning firsthand, without obligation, how the Jarrell-Ash Convertible Ebert Spectrograph can benefit our specific analytical operation. Please have your applications engineer contact the undersigned.
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ANALYTICAL CHEMISTRY
An effort has been made in preparing this book to gather information from authorities in the field of analytical chemistry and to test any procedure or principle that appeared to be in any doubt. Its aim is to provide necessary information to analyze any titaniumcontaining material. The authors be lieve that by using the principles of analysis contained in this volume, one can modify the procedure and success fully analyze any given sample. The book is divided into four parts, cover ing general procedures, determination of metallic and nonmetallic elements in titanium and titanium alloys, and the analysis of titanium-base materials. There is a reference list of about 230 entries, and both author and subject indexes. Anorganische Qualitative Mikroanalyse. Hanns Malissa and A. A. Benedetti-Pichler. vii + 333 pages. Springer-Verlag, Môlkerbastei 5, Wien I, Austria. 1959. $11.65.
JARRELL-ASH COMPANY Jarre!! A s h
Analytical Chemistry of Titanium Metals and Compounds. Maurice Codell. xiii + 378 pages. Intersci ence Publishers, Inc., 250 Fifth Ave., New York 1, Ν. Υ. 1959. $12.
AC
This book, written largely as a handbook for analysts, is the first volume of a series entitled "Monographien aus dem Gebiete der qualitativen Mikroanalyse/' edited by A. A. BenedettiPichler. The first part describes methods suitable for handling materials in amounts of about 50 to 0.001 mg. Attempts were made to keep the main part of the book, concerned with detection tests and separation processes, so general in content that use on any desired scale should present no difficulty. Detection tests and separation processes are also given for the rare elements. Sensitivity data of the International Union for Pure and Applied Chemistry are shown in tabular form. The separation procedures of Noyes and Bray for cations and of Noyes for anions are described, with regard to practice accumulated through transfer of the procedures to micro
