NEW!
Coleman Flame Photometer Sodium, Potassium A N D CALCIUM directly, easily and accurately New
and
Exclusive
Atomizer-Burner
. . . Burns
L o w e s t C o s t . . . H i g h e s t V a l u e . . . The Coleman Flame
common illuminating gas with oxygen for a stable high-
Photometer is ready to operate with any modern Coleman
temperature flame. No explosive tank gas required. Safe in the most inexperienced hands.
trophotometer,
S i m p l e D i r e c t - C o u p l e d Optics . . . No slits to adjust. . . no mirrors or prisms to align. Optical filters provide spectral isolation.
Electric Colorimeter,
Photo-Nephelometer,
or Nepho-Colorimeter . . . costs o n l y $ 4 5 0 . 0 0 . For users who prefer to conduct flame analysis independent of other procedures or who do not have available
D i r e c t R e a d i n g . . . Without internal standards. High temperature flame gives full excitation . . . eliminates need for chemical additives such as lithium. Easy t o Use . . . Safe in any laboratory. The Coleman Flame Photometer is as safe and easy to use as a Bunsen burner. Flame will not blow out or flash-back, and pressure adjustments are not critical.
Photometer . . . Junior Spectrophotometer, Universal Spec-
one of the above Coleman instruments, a separate indicating instrument . . . the Coleman Galv-O-Meter is offered at $ 1 5 0 . 0 0 .
For
full
details
write
for
Bulletin
B231
Coleman Instruments D e p t . A , 3 1 8 M a d i s o n St., M a y w o o d , I I I .
For further information, circle number 32 A on Readers' Service Card, page 37 A
32 A
ANALYTICAL
CHEMISTRY
