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DLC-10, DLC-10C, DLC-11C,
DLC-10CP, and DLC-11CP Isocratic HPLC Systems:
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These
are complete HPLC systems with an integrated UV-Vis
Fixed Wavelength Detector for either 254nm or 280nm
operation. Other wavelengths, dependent upon applications,
are available by special order.
The DLC-10 is the lowest priced HPLC system in the
market. This system employs a 254nm Hg lamp and
power supply that does not permit up grading to
any other wavelength.
The DLC-10C and 11C can operate to system pressures
of 3000 PSI. They come equipped with the standard
"PAEK™" valve. There is no pressure read
out on these units. System pressure is obtained
using the "Star-Chrom™" software when
these systems are purchased as automatic isocratic
(DIS-10/11) or gradient systems (DGS-10/11) or the
new Star-Chrom Lite™ software when the instrument
is fitted with a pressure transducer.
The DLC-10CP and DLC-11CP can operate to system
pressures of 5000 PSI with the standard 10.0ml pump
head. These instruments have front panel read out
of pressure and a position-sensing valve as standard
features. The "CP" instruments are priced
slightly higher than the "C" instruments.
The "C" and "CP" configurations
can be up-graded to other available wavelengths.
The high-pressure systems are available in SS construction
only.
All the standard
fixed wavelength systems can be obtained in either
"SS" or "PEEK"" configurations
for the same price.
All of the above systems come standard with either
a PEEK or SS analytical flowcell dependent the users
option. A preparative flowcell, semi-preparative
flowcells and a microbore flowcell are also available.
The pumping
system on all the instruments is a high quality
single piston pump with a built in pulse damper.
A two-stage injection valve with a 20µl loop
is standard.
Detector analog
voltages for data acquisition are located at the
rear of the instruments, and include a remote capability
for selecting absorbance ranges via contact closures.
The pump has an RS-232 jack for acquiring pump information.
Pump flow rates are from 0.01ml to 10ml. |
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| DLC-20
and DLC-20P Isocratic HPLC Systems: |
The
DLC-20 and DLC-20P are complete HPLC systems with
a variable wavelength detector built in at the price
of most variable wavelength detectors alone. They
combine a precision UV-Vis detector operating between
195-800nm with a time tested single piston pump
to form low cost isocratic systems. Although not
designed to replace the more expensive and larger
systems, the DLC-20 and 20P, with their small size,
price, and versatility are an ideal answer for routine
QC analysis. Several DLC-20/20P can be dedicated
to methods much less expensively than buying one
larger and more expensive gradient system; particularly
since most QC procedures are isocratic in nature.
The DLC-20 can be obtained in PEEK construction
for bio- compatibility or in SS at the same price.
The DLC-20P is available only in SS construction.
Similar to the DLC-10CP/11CP the DLC-20P can operate
to 5000 PSI with the standard 10ml pump head (SS).
All controls are conveniently located on the front
of the instrument. There are two LED displays. One
is dedicated to the pump while the other displays
detector absorbance and wavelength information.
On the DLC-20P the pump display also indicates system
operating pressure and preset alarm values. The
rear panel has the analog voltage outputs for data
acquisition and outputs for contact closures permitting
remote control of absorbance and wavelength.
The DLC-20
comes standard with a two-stage valve and 20µl
loop (either PEEK or SS). The 20P adds a position-sensing
valve. |
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| DIS-10/11
and DIS-10P/11P Isocratic HPLC System with Star-Chrom
TM HPLC Management Software: |
The
DIS-10/11 and DIS-10P/11P are the D-Star low cost
DLC-10 or DLC-l 1 isocratic fixed wavelength HPLC
system fitted with a position sensing valve, pressure
transducer with associated electronics, and the
new Star-ChromTM dual channel, 32 bit, Windows 95,
98, ME, and NT based software. The system can be
configured for 254 or 280nm operation. By adding
the new Model DAS-10 autosampler or an autoinjection
valve, the system can be made fully automatic. The
standard units will operate at 3000 PSI system pressures;
the "P" units at 5000 PSI. The standard
units will operate at 3000 PSI system pressures;
the "P" units at 5000 PSI etc.
The software can acquire the data, process it, calibrate
the data, and report the data in a customized report.
The entire system is under the control of the software.
This includes pump control via RS-232 and detector
control via contact closures. Obviously with a fixed
wavelength detector wavelength control is not possible.
The software does control autozero as programmed
by the method developed and sets absorbance range.
The DIS-10/11
is the lowest priced computer assisted isocratic
HPLC system in the industry. |
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| DIS-20/20P
Low Priced Automated Isocratic HPLC Systems with
Variable Wavelength Detector: |
Similar
to the DIS-10/11 and DIS-10P/11P, the DIS-20/20P
combines the D-Star DLC-20 isocratic HPLC system
with variable wavelength detection with the new
Star-ChromTM dual channel software package providing
the lowest priced automated HPLC system with an
integrated variable wavelength detector. The software
can acquire data from two detectors but can only
control one. The software can set wavelength on
the detector dependent upon the wavelength used
in the method. Complete system automation is possible
by adding an autosampler such as the Model DAS-10
Star-ChromTM automatically acquires the data, processes
it and makes it available for further calculations
and calibration, and can report the data out in
custom report. All facets of the HPLC method can
be programmed including pump flow rates, peak detection,
absorbance range, and autozero in addition to the
wavelength.
In comparison to other isocratic systems in the
market the DIS-20 is priced thousands of dollars
less. |
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| DGS-10/11
and DGS-10P/11P Automated Binary gradient, Fixed
Wavelength HPLC Systems: |
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DGS-10/11 and DGS-10P/11P are the lowest priced
automated binary gradient systems in the market.
The systems combine the D-Star DLC- 10/11 with a
second pump for high-pressure delivery and mixing
of the mobile phases. The Star-ChromTM dual channel
32 bit, Windows 95, 98 and NT based software permits
RS-232 control of both pumps and simple programming
of the flow rates. Similar to the DIS-10/11 the
software acquires, processes, and reports out the
data generated from the chromatographic run. Peak
detection, autozero, and absorbance ranges can be
programmed with the software.
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| DGS-20/20P,
The Lowest Priced Automated Variable Wavelength,
Binary Gradient HPLC Systems: |
The
DGS-20/20P incorporates the D-Star DLC-20/20P with
a second pump and the new Star-ChromTM dual channel
Windows 95, 98 and NT based software for data acquisition
and instrument control.
Mixing of the solvents takes place in a precision
mixing tee/pressure transducer with a minimum of
dead volume. The software permits simple programming
for the gradients. The two pumps are controlled
via RS-232 serial ports. Detector control is accomplished
via contact closures. This provides precise wavelength
and absorbance range control.
The data is acquired from two detectors, if desired,
where the software automatically controls the built
in detector. For the DGS-10/11, DGS-10P/11P and
the DGS-20/20P a CPU with an available COM port
is required. All Star-ChromTM systems can be operated
with both standard PC's and laptops.
The complete systems are priced far below any other
comparable system.
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| DFL-10
an Economical Fluorescence Detector For HPLC: |
The
new D-Star Instruments DFL-10 HPLC Fluorescence
detector provides the sensitivity and the specificity
of fluorescence detection at a price consistent
with most low cost UV detectors.
Sensitivity is enhanced in the DFL-10 by the new
analytical flowcell that employs a unique excitation
and emission geometry, a completely closed optical
compartment, and a thermally stabilized system.
The DFL-10 can be configured with a choice of lamps
covering the UV and Visible regions of the spectrum.
Choices include Deuterium (at an additional cost
with a recommended expanded range photomultiplier),
254nm, 280nm, and 365nm Hg lamps, and a W lamp for
the visible spectrum up to 870nm. The user may select,
in addition to the lamps, a standard instrument
which will employ all the lamps with the exception
of the Deuterium with a standard Photomultiplier
(PMT) or the extended range PMT.
Excitation and emission filters are not included
in the base price of the instrument and must be
selected on the basis of the application requirements.
The DFL-10 has a number of outstanding features
surpassing all other filter fluorescence instruments
including built in diagnostics, rise time controls,
zero offset, autozero, automatic gain control (high
voltage) and with the D2 or Tungsten versions the
ability to shut lamp energy off for reading chemo-
and Bio-luminescence. |
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| DAS-10
Low Cost Autosampler: |
The
Autosampler comes standard with a twenty-position
carousel accommodating 12 x 32mm vials (1.5ml volume).
The autosampler may be used as a stand-alone instrument
or in conjunction with chromatography support software,
which activates it contact closures.
Some of the
DAS-10 outstanding features include all electric
operation, fixed loop and partial loop injection,
simple to use front panel programming and remote
programming from a CPU, including programmable auto
wash after each injection, multiple injection programming,
selection of vials, timed, or scheduled programming,
and sample volume. The autosampler is small enough
to fit in a hood, minimum sample volume of 50µl,
and minimum injection volume of 5µl (when
used with micro vial inserts).
The Model
DAS-10 is priced at less than one half the cost
of many autosamplers in the market. It was designed
to fit a specific need at a specific budget level.
The Model DAS-10 Autosampler is designed to offer
the user a low priced alternative to the more expensive
autosamplers in today's market.
The instrument is available at attractive OEM prices.
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