Beckman
2
*vv ^^^MW) ^\ÛP r f^•* m Bf¥ '•M f ^ t i iff !Λϋ||«ϋ! τ ι ι ι ι Γ-Τ-—ι—ι—ι—ι—τ—τ—ι—ι—ι—ι—ι—ι—ι—,—ι—,—,—( —,—,—ι » t "'") ι—!—ι—ι—r~T MtaWl | \!φφΒΕ&%0 3500 -j—r—r~r—ι—τ—ι—f Ψ\ », 111, immWm 1 ιΛίΗ A ml ,1 Ί1 -L..r.u..a..—t i < Μ }β i , M ' Π if 1 1 î Λ^ΛΛψί '—ι ι 1 . 'Ί t' 11 ! ! Ι ' » ·''•'" 't Γ i'i'V t l fl i » ι " t ι 1 -! r'-< i^i I'Vx't { I r ι ί ) ι t Ί Γι » r-r-τ ι ι ; ι ι MM Μίβ 3l»l 3JOB 5( Μ ΙΛΛ η; ΜΙ »π * ' Ψ Ή ÎUAAA Ι V Ι 1 τ ( r 1600 I - · 1 ï\ .^rv» I«*V;Î*V\ rv,. r^Vtaf ΧΛΧΛ Λ If IP J •Α ι \ WTli I iUU ISO (11 PI r"—! r ! r Jt ! , J • .— τ 1 1 4'" 1 t I I •—1 1 Ϊ τ 1 I T ISO Ifl* ) t 1 r 1 ι 1 r m
Transcript of Beckman
*vv ^^^MW) ^\ÛPrf^•* m Bf¥ '•M f ^ t i iff !Λϋ||«ϋ!
τ ι ι ι ι Γ-Τ-—ι—ι—ι—ι—τ—τ—ι—ι—ι—ι—ι—ι—ι—,—ι—,—,— (—,—,—ι » t "'") ι — ! — ι — ι — r ~ T
MtaWl | \!φφΒΕ&%0 3500 - j—r—r~r—ι—τ—ι—f
Ψ\ » , 111,
immWm 1 ιΛίΗ A ml ,1 Ί1
-L..r.u..a..—t
i <
Μ }β i , M ' Π if 1 1 î
Λ^ΛΛψί '—ι ι1 . 'Ί t'11! ! Ι ' » ·''•'" 't Γ i ' i ' V t l f l i » ι " t ι 1 - ! r'-< i ^ i I ' V x ' t { I r ι ί ) ι t Ί Γι » r-r-τ ι ι ; ι ι
MM Μίβ 3l»l 3JOB 5 ( Μ
ΙΛΛ η ; ΜΙ »π * ' Ψ Ή ÎUAAA Ι V Ι1
τ ( r 1600
I - · 1 ï\
. ^ r v » I«*V;Î*V\ rv,.
r^Vtaf Χ Λ Χ Λ Λ If IP J •Α ι \ WTli
I iUU
ISO
(11 P I
r"—! r ! r J t ! , J • .— τ 1 1 4'"1 t I I •—1 1 Ϊ
τ 1 I T ISO Ifl*
) t 1 r 1 ι 1 r m
This is Ammonia... an infrared spectrum never before produced in its entirety—and automatically— by a commercially available spectrophotometer. This masterpiece of infrared analysis shows incomparable resolution throughout the wide wave-number range from 600 cm to 4000 cm"1. The instrument: The Beckman Prism-Grating IEr7 Infrared Spectrophotometer, equipped with a Multi-Path Gas Cell, sa W a n t an enlarged reproduction of the ammonia spectrum ? And additional information about the automatic continuous scanning IR-7? Wri te today for Data File L-56-15.
S A M P L E : 99.5% a m m o n i a . . . 0 . 5 % w a t e r v a p o r R E F E R E N C E : 10 cm d r y n i t r o g e n S P E E D : 0.2 cnrVmin. . .600-2000 cm"1
0.4 cnrVmin.. .2000-4000 cm"1
G A I N : 30-40% P E R I O D : 32 s e c o n d s
Spectrum Cell Cell Designation Pressure Path Length
A 7.5 m m 0.10 M Β 7.5 m m LOOM C 7.5 m m 2.8 M D 7.5 m m 8.2 M Ε 75.0 m m 2.8 M F 75.0 m m 4.6 M G 75.0 m m 8.2 M H 750.0 m m 2.8 M I 750.0 m m 8.2 M J 110.0 ps i 2.8 M
Beckman Scientific and Process Instruments Division
Beckman Instruments, Inc. 2500 Fullerton Road, Fullerton, California
We and our dealers are showing the newest Beckman analytical instruments at the Pittsburgh Conference, March 2-6.
Reactors are available in three capacities—100, 300, and 500 ml.— and are supported within a heating jacket at the end of a pendulum arm. The motion produced is nearly rectilinear, as opposed to the short rocking motion imparted by center-pivoted rocker type reactors. The length of the pendulum stroke can be varied and a multi-sheave pulley system enables varying the speed of agitation.
The Pendaclave can be provided for either electric or vapor heating. A safety feature is that the electrical heating jacket can be purged with inert gas. Provision is made for a pencil thermocouple and gas inlet in the head, and a one-half inch rupture assembly connects to à high pressure flexible vent hose. A bar at the bottom prevents the unit from pinwheeling should the link arms fail. P-18
Ratio Computer
A new ratio computer is announced by Radiation Counter Laboratories, Inc. The computer, a scintillation detector of 4 pi geometry, has maximum counting efficiency and performs low level radiation measurements. Combined with either a single or multi-
NEW PRODUCTS
CABLE HOLE
channel analyzer, it determines the energy level of radiation, identifies the radioactive isotope, and measures the amount. A counting time of 100 seconds per subject is required to obtain a sensitivity of 5 X 10~10 curie for 1.5-mev. gamma rays. P-l 9
Nitralyzer
The Nitralyzer 300AR of Custom Engineering and Development Co. measures the percentage nitrogen in physiological gases and certain other gas mixtures containing free nitrogen. It does this by measuring the spectral emission of ionized nitrogen in a low-pressure chamber.
I t features a continuous reading vacuum gage located close to the ionizing chamber and which reads on a panel meter. Another feature is a recorder amplifier which is integral with the nitralyzer, thus obviating the need for a recorder preamplifier. A galvanometer output has means to insert resistors for proper damping and sensitivity control.
The sensitivity and time constant of this instrument allows it to follow small rapid changes in nitrogen content of the sample. Sensitivity is 0.2% per scale division, the time constant is 0.044 second and noise is less than 0.07%.
Cabinet dimensions are 8 X 9 X 14 inches. P-20
Microflow Meter
A microflow meter is introduced by George K. Porter, Inc. which measures, calibrates, and flow-sets gases and vapors as low as 1 cc./hr. and up to 10 cc./min. or higher. The instrument senses low flows and provides a flow signal in the form of a low differential pressure across a precision formed microflow channel. A sensitive differential pressure gage gives readout flow indication. Dimensions of the unit are 12 X 10 X 10 inches. P-21
Flexible Film Dry Box
A flexible film dry box is offered by the American Sterilizer Co. It was developed to meet requirements for rearing germfree animals in a sterile environment. Germicidal vapor ensures destruction of all microorganisms, sterilizes quickly, and is compatible with the vinyl plastic envelope and stainless steel components. The dry box can be
VOL. 3 1 , N O . 2, FEBRUARY 1959 · 1 0 9 A
Circle No. 32 on Readers' Service Card
