W. M. WELCH SCIENTIFIC COMPANY
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28 A ANALYTICAL CHEMISTRY THE WELCH DENSICHRON DENSITOMETER For Light-Measuring Operations in Scientific Research and Industrial Process Control. UNSURPASSED STABILITY EXCEPTIONAL LIGHT SENSITIVITY PATENTED MAGNETIC MODULATION NO ZERO ADJUSTMENT CONVENIENT SMALL SIZE 5 χ VA x 13 IN. LIGHT IN WEIGHT—ONLY 11 Vz POUNDS No. 2150 The SPECIAL FEATURES OF THE DENSICHRON* qualify it for use in many light-measur- ing operations in scientific research and industrial process control. Some of the laboratory applications for which the DENSICHRON is particularly well adapted are— PHOTOMICROGRAPHY CHROMATOGRAPHY* REFLECTOMETRY MICRODENSITOMETRY COLORIMETRY *See "Quantitative Paper Chromatography for Students" by Potion, A. R., Jr. Chem. Educ. 28, 629 (1951). The DENSICHRON is supplied complete with a blue-sensitive light probe (or red if specified), five measuring apertures, a cone with l /s inch aperture, and metal support for the probe unit. The current consumption is 30 watts. For operation on 115 volts—60 cycle AC only— WRITE FOR 12-PAGE BOOKLET GIVING OPERATION CURVES, _ „. ft „ RESULTS OF LABORATORY TESTS AND OTHER VALUABLE ESCll $ ZZ5. INFORMATION. Reflection Unit Accessory with Voltage Regulated Transformer—$75.00 * Reg. U. S. Pat. Office. W. M. WELCH SCIENTIFIC COMPANY ESTABLISHED 1 880 1515 Sedgwick Street Dept. A Chicago, Illinois, U.S.A.
Transcript of W. M. WELCH SCIENTIFIC COMPANY
28 A A N A L Y T I C A L C H E M I S T R Y
THE WELCH
DENSICHRON DENSITOMETER For Light-Measuring Operations in Scientific Research and Industrial Process Control.
UNSURPASSED STABILITY EXCEPTIONAL LIGHT SENSITIVITY PATENTED MAGNETIC MODULATION NO ZERO ADJUSTMENT CONVENIENT SMALL SIZE 5 χ VA x 13 IN. LIGHT IN WEIGHT—ONLY 11 Vz POUNDS
No. 2150
The SPECIAL FEATURES OF THE DENSICHRON* qualify it for use in many light-measuring operations in scientific research and industrial process control. Some of the laboratory applications for which the DENSICHRON is particularly well adapted are—
PHOTOMICROGRAPHY CHROMATOGRAPHY*
REFLECTOMETRY MICRODENSITOMETRY
COLORIMETRY
*See "Quantitative Paper Chromatography for Students" by Potion, A. R., Jr. Chem. Educ. 28, 629 (1951).
The DENSICHRON is supplied complete with a blue-sensitive light probe (or red if specified), five measuring apertures, a cone with l/s inch aperture, and metal support for the probe unit. The current consumption is 30 watts. For operation on 115 volts—60 cycle AC only—
WRITE FOR 12-PAGE BOOKLET GIVING OPERATION CURVES, _ „ . f t „ RESULTS OF LABORATORY TESTS AND OTHER VALUABLE ESCll $ Z Z 5 . INFORMATION. Reflection Unit Accessory with Voltage Regulated Transformer—$75.00 * Reg. U. S. P a t . Office.
W . M . W E L C H S C I E N T I F I C C O M P A N Y E S T A B L I S H E D 1 8 8 0
1515 Sedgwick Street Dept. A C h i c a g o , I l l i n o i s , U.S.A.
