For the BUSY Analytical
Laboratory,
where large numbers of precision analyses are required
Coleman Spectrophotometers a r e fast, accurate, dependable 1,000 steel scrap analyses per day in a large, midwest steel mill; 25,000 cholesterol determinations in 3 months in a west-coast biological laboratory—these are the kind of work programs that demand speed, precision and, above all, day-to-day dependability—continuing performance without interruption for maintenance or repairs. These are the work programs that Coleman Spectrophotometers perform so effectively, in laboratories the world over. Because they employ no vacuum tubes, no electronic amplifiers—because they require no complicated mechanical slit adjustments or dark-current balance—
Coleman Spectrophotometers will deliver precise analyses, at high speed, even in the hands of untrained operators—and with a reliability unequaled by any other spectrophotometer. The Coleman Junior Spectrophotometer—for the most economical and dependable performance of routine spectrophotometric analyses. The Coleman Universal Spectrophotometer—for the greatest speed and versatility in the laboratory requiring precision measurements in spectrophotometry and related sciences, including Fluorometry, Nephelometry, Colorimetric Titration, and others.
Write for new Junior Spectrophotometer Bulletin B-240A and Universal Spectrophotometer Bulletin B-241. Write
COLEMAN
to Dept. A, Coleman Instruments, Inc., Maywood,
Coleman Spectrophotometers For further information, circle number 114 A on Readers' Service Card, page 97 A
114 A
·
Illinois.
ANALYTICAL CHEMISTRY
