Laboratory Apparatus. Ten-page catalog contains descriptions of equip ment, apparatus, and furniture for the laboratory, including crystal lattice models, pH meters, balances, ovens, and bath coolers. Arthur S. LaPine & Co. (Review No. 7) 31
G e t Economical
Gas-Liquid
Ideal
for School (or Research
or or
Defying
SEPARATE: a l c o h o l s , esters, a c i d s , a l d e h y d e s , k e t o n e s , s u l p h u r c o m p o u n d s , aromatics o r a l i p h a t i c h y d r o c a r b o n s , cis-trans isomers, o r compounds w i t h varied saturation. PURIFY: r a d i o l a b e l l e d o r other special vola tile compounds.
SPECIFIC ADVANTAGES: • • • • • • • • • •
Boiling range 2 0 ° - 4 0 0 ° C . Temperature gradient operation. Temperature increase rate; 2°C/min. Temperature maintained within 1 °C. Interchangeable stainless steel columns. Variety of packings and columns. Bench space, 1.1 sq. ft. Micro sample size. Quantitative Collection. Simplicity of operation.
Master Aerograph w i t h Recorder $ 1 2 5 0 C o m p a n i o n w i t h o u t Recorder, $ 7 5 0 . f.o.b. Is Your Problem Separation of FATTY ACID METHYL ESTERS!
WILKENS INSTRUMENT & RESEARCH, INC., Acheson Building, Berkeley 4 , California For further information, circle number 91 A-1 on Readers' Service Card, page 77 A
Equipment.
Best for QUALITY CONTROL and
Spectrochemical Analysis. New 28page illustrated brochure provides in formative data on spectrochemical analysis, outlining methods, instru ments, and typical analytical problems. Also includes bibliography of pertinent reference handbooks. Jarrell-Ash Co. (CH4.01) 37
Photoelectric and Electronic Meas uring Instruments. Four-page bulle tin features pH meters, colorimeters, photometers, and densitometers among company's line of measuring instru ments. Photovolt Corp. 39 Teflon Tubing. Two-page bulletin de scribes Teflon thin-walled tubing, with emphasis on its electrical properties and wide range of applications. Haveg Industries, Inc. (Bull. Τ-200) 40 •
For further information, see c o u p o n o n page 77 A
Berkeley
Write for Descriptive Folder & Details or Sena1 Volatile Sample for Analysis
Eight-page bulletin gives data on dryers and calciners for research and pilot plant uses. C. O. Bartlett & Snow Co. (Bull. No. 117) 36
Labeled Compounds. Twenty-four page catalog and price list includes newly available carbon, tritium, and deuterium labeled compounds, as well as descriptions of self-luminous sources. New England Nuclear Corp. 38
Identifies Components Separation by Other Technics
ANALYSE: fusel o i l s , t e r p e n e s , flavor c o n stituents, gas streams, p e t r o c h e m i c a l s , a n d synthetics.
Chemicals. Brochure lists available fine chemicals and their prices. Includes several new compounds. Mann Fine Chemicals, Inc. 34
a n d Calcining
TOPOGRAPH
Industry
Analytical Instruments. New 16page catalog provides information on company line of infrared and ultraviolet spectrophotometers, monochromators, flame photometers, vapor fractometers, as well as accessories available. PerkinElmer Corp. 33
Drying
th the
Control
Technical Glassware. Illustrated catalog of 234 pages gives descriptions and prices of 11.130 items of laboratory and scientific glassware. Kontes Glass Co. (Cat. TO-15) 32
Radioactivity Measuring Instru ments. Two-color, 64-pagc catalog il lustrates and describes full line of nu clear instruments, including scaling units, ratemeters, gamma-ray spectrom eter systems, Geiger and scintillation detectors, as well as lead shields, person nel protection devices, and gamma and beta sources. Nuclear-Chicago Corp. (Cat. Q) 35
Wl
CHROMATOGRAPHY
RESEARCH ANALYSIS
3.4 METER CONVERTIBLE SPECTROGRAPH The JAco Ebert offers highest resolu tion and dispersion, assures unsurpassed precision and sensitivity for analyses of ordinary materials as well as superalloys, rare earths and transuranic ma terials. Only the JAco Ebert embodies every desired feature for fast, reliable results plus simplicity of operation never before attained in so versatile a spec trograph. Normal peak analytical limits are easily extended through use of op tional Order Sorter. Learn more about the JAco Ebert — write today for free 8-page catalog.
Highest dispersion and resolution of any spectrograph!
Flexible: High dispersion for routine analyses . . . ultra-high dispersion and resolution for checking line interfer ence, line shape, self-reversal; f o r isotopic analyses. Simple: Easily operated by non-tech nical personnel. Stlgmatic: Greater reliability, ver satility . . . eliminates critical adjustments. Wide Coverage: W i t h 20" camera, single exposure records — at high dis persion — the most sensitive lines of all metallic elements (except alkalies).
Jarrell-Ash Company 32 Farwell Street, Newtonville, Massachusetts San Mateo, Calif. Dallas. Texas
Tinley Park, I I I . New York, Ν. Υ. Pittsburgh, Penna. Atlanta, G a . Detroit, M i c h . For further information, circle number 91 A-2 on Readers' Service Card, page 77 A VOL. 2 9 , N O . 5, MAY 1 9 5 7 · 9 1 A
