TIME SAVERS!
Read About These Instruments—Plus M a n y Other N e w I t e m s — I n Our Publication WHAT'S NEW FOR THE LABORATORY No. 40, Sent On Request.
Coleman
Beckman
Beckman
NITROGEN ANALYZER
DB' SPECTROPHOTOMETER
POTENTIOMETRIC RECORDER
Τ? ith this new Coleman instrument, routine nitrogen determinations can be made at the rate of 4 to 5 per hour, or up to 40 per day—automat ically! It is the most accurate, relia ble method yet devised for the MicroDumas process. It's also excellent for many of the determinations currently made by the Kjeldahl method. And it s a real space-saver, too . . . only 18" wide χ 1 5 " deep. For the com plete Coleman Nitrogen Analyzer story, write for bulletin 258.
±\.t last . . . a budget-priced spec trophotometer that covers both the visible and ultraviolet range—from 220 to 770 πιμ. It's versatile, easy to use, and features programmed or manual slit systems for optimum resolution. Stray light is less than 0.5% at 220 m μ. Photometric re peatability is ± 0 . 0 1 absorbance units at 0.400 absorbance. Ideal for accu rate qualitative and quantitative analyses, medical and clinical stud ies, quality control and research. Ask for bulletin 779.
N-3500X
S-3975-5X
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Coleman Analyzer
Nitrogen $2,495.00
Beckman 1 4 0 1 DB Spectrophotometer
J J y means of control knobs, you can vary the voltage span continu ously in the 10 to 100 mv range when you use this portable, push button strip chart recorder. You can also displace the pen zero-setting at any point throughout the 5 inches of pen travel. Repeatability is 0.35%. Pen response is 1.0 second over the full scale; limit of error 1 % . Stand ard chart speed is 2"/min. (4"/rnin. plug-in chart drive available.) This is an excellent general purpose re corder. Every lab should have one. Write for bulletin 774. R-3200X
$1,865.00
Beckman Recorder
Potentiometric $475.00
* Trademark, Beckman Instruments Inc.
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A B O R AT Ο R Y . . . Α Ρ Ρ A R AT U S ΙΝ S Τ R U M E N T S C H Ε Μ I C A L S G L A S S WA R E
Branch Sales Offices: Albany 5, Ν. Y. · Boston 16, Mass. · Elk Grove Village. I I I · Philadelphia 43. Pa. · Silver Spring. Md. Branch Warehouse: Elk Grove V i l l a g e , III. Circle No. 116 on Readers' Service Card V O L 3 2 , N O . 1 0 , SEPTEMBER 1 9 6 0
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