12 A
V O L U M E 19, NO. 12
FASTER ANALYSIS by INFRARED TRANSMISSION TECHNIQUES
Baird Associates INFRARED RECORDING SPECTROPHOTOMETER I N A P P R O X I M A T E L Y 12 M I N U T E S . . . infrared s p e c t r o g r a m s are a u t o m a t i c a l l y recorded in direct percent transmission with linear wavelength scale, giving accurate analysis, for quality control or for solution of general chemical problems.
SPECIFICATIONS Spectral Range — 2 to 16 microns (linear) Precision — Transmission ± 1 % Wavelength ± 0.02 microns
GASES, L I Q U I D S a n d SOLIDS . . . can be analyzed with equal rapidity and accuracy. Quantitative as well as qualitative analysis is obtained from the infrared transmission curve of a mixture. For example: t h e curve for illuminating gas, shown above, indicates the characteristic absorption bands of methane, carbon dioxide, carbon monoxide, and ethylene.
Chart Size — L i n e a r s c a l e s : Transmission 5^§ in. Wavelength 17J/2 in. Recording S p e e d — 12 minutes for complete spectrogram P o w e r S u p p l y — 1 1 0 volts, 60 cycles For detailed description a n d specifications of t h e Baird Associates Infrared Spectrophotometer, request Bulletin X X X . Baird Associates will gladly confer with you regarding the application of this instrument t o your needs.
DIFFERENTIAL A N A L Y S I S . . . by means of the exclusive double-beam principle employed in the Baird Associates Infrared S p e c t r o p h o t o m e t e r . . . greatly simplifies analysis of mixtures for slight impurities and for variation from a standard. In fact, complex analyses are reduced, by this automatic instrument, t o routine tasks for a laboratory technician.
Baird
Associates,
INDUSTRIAL 33
UNIVERSITY
ROAD
Inc.
PHYSICISTS
CAMBRIDGE
38,
MASSACHUSETTS
