10 A
ANALYTICAL
CHEMISTRY
Coleman Junior Spectrophotometer MODEL IDEAL OR
FOR
THE
6A
ANALYTICAL
P R O D U C T I O N LABORATORY
SABISÊS
• Whether your work is in metals, foodstuffs, vitamins, or the clinical laboratory, this simplified model of the Universal Spectrophotometer provides simple means of t r a n s mission spectrochemistry measurements. Its interchangeable scales are ideal for the analytical laboratory requiring a variety of different analyses from a single instrument. The production laboratory has also found the instruments useful for rapid determinations of copper, manganese, cobalt, nickel, etc. with the speed of the spectrograph but with greater precision and at much less cost. The Coleman Junior Spectrophot o m e t e r fully m e e t s t h e t h r e e requirements necessary for identifying and for measuring solution constituents.
First, it determines the exact color (light wave length) most responsive to the considered constituent. Second, it is capable of generating light of that exact wave length. Third, it accurately measures the intensity of that light as affected by the constituent. For full details write for Bulletin B-211. H-59540 Coleman Junior Spectrophotometer, complete with Plastic Light Shield, Mounting Pads, Removable Transmittance-Density Scale Panel and Operating Instructions—with H-59540-15 Storage Battery and Charger with connecting cables $485.00 Complete
stock
of cuvettes, accessories
adapters, calibrating standards for immediate delivery
and
other
HARSHAW SCIENTIFIC DIVISION OF THE HARSHAW CHEMICAL CO. C L E V E L A N D 6, O H I O
CLEVELAND
·
CINCINNATI
·
DETROIT
·
HOUSTON
·
LOS ANGELES
·
PHILADELPHIA
