General Catalogue Chemistry - BECO Internacional LTDA.

665 486
CPS flow-through photometer
The CPS flow-through photometer is intended
for use as a detector, e.g.:
· for determining substrate or product concentrations
in biotechnology
· in preparative organic and biochemical
analysis
· with HPLC
The detector utilizes the radiation of a lowpressure
mercury discharge lamp with a UV
component of over 90% at a wavelength of
254 nm. The photosensitive semiconductors
respond selectively to this wavelength, so that
a monochromator is not necessary. To compensate
for variations in the intensity of the light
source, differential measurements are carried
out on two light beams. One beam is passed
through a quartz-glass cell containing the sample
which is to be measured, while the other is
used as the reference beam. The differential
amplifier allows recording of the differential signal
with the standard measuring ranges provided
by most chart recorders or via a computer.
Beam source: Hg discharge lamp
Measurement wavelength: 254 nm
Detector: photocell
Cell: quartz, optical path length 2 mm
Recorder output: 0 ... +2 V
Power supply: 230 V/50 Hz
Dimensions: 100 x 297 x 143 mm
Weight: 2.4 kg
665 485
HPLC pump
Short-stroke electromagnetic pump with Teflon
membrane mounted on a CPS training panel;
stainless steel head with special Teflon diaphragm.
The only limitation for the liquid to
be transported is that it may not contain
any dispersed and coarse impurities. Connections
for Teflon tubing with 1.4 mm diameter.
The pump can be externally controlled via a
TTL input.
Pumping capacity: 60 ... 1300 ml/h
Operating pressure: max. 10 bar
Diaphragm: with steel core and PTFE coating
Connections: for 1.4 mm Teflon tubing
Power rating: 11 W
Mains supply: 230 V/50 Hz
Signal input: TTL, 2 sockets 4 mm
Dimensions: 200 x 297 x 150 mm
Experiment panel: 200 x 297 mm
Weight: 3.5 kg
665 481
chromatography
HPLC support for chromatography columns
CPS training panel for accommodating HPLC
columns (> 665 478 - > 665 4791).Mounting
the columns is extremely easy. They are
simply mounted to the CPS system panel
using clamping devices.
Dimensions: 100 x 297 x 140 mm
Panel: 100 x 297 mm
Weight: 0.5 kg
665 478
Separating column SI 60
Preparative column, silica gel,
particle size 40-63 µm, max. 6 bar/90 psi,
for adsorption chromatography.
Length: 240 mm
Inside diameter: 10 mm
665 4791
RP-18 separating column
Preparative column, reversed phase for distribution
chromatography, particle size 40 -
63 µm, max. 6 bar/90psi.
Length: 240 mm
Inside diameter: 10 mm
665 488
Set of hoses and septa for HPLC
HPLC modules
665 478
665 481
1 Teflon hose (0.8 x 1.5 mm), 2 m long
25 Viton septa (10 x 1 mm)
25 silicone septa (10 x 4 mm)
LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
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