TU-1800/1800S UV-VIS Spectrophotometer
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The
TU-1800/1800S is our company's popular UV-VIS spectrophotometer.
Its optical system adopts a split-beam measurement optical
system, detector for two highly sensitive silicon photodiodes;
instrument operations are controlled through an internal
single-chip microcomputer, matched with a 320*240 LCD
display screen, and a soft-touch keypad and parallel
printing interface: instrument features an 8-cell holder,
accessible light-source chamber. TU-1800/1800S
UV-VIS spectrophotometer performs photometric measurements,
spectrum measurements, and quantitative measurements.
It is easily operated, features excellent performance,
automatic 1100nm-200nm wavelength scan, peak-picking,
and automatic baseline check. Its convenient and easy
data processing is very suitable for medical, chemical,
environmental, agricultural, or biological analytical
work.
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Features
*
Low Stray Light and Wide photometric range.
The high-performance blazed holographic grating
reduces stray light of the instrument and widens
the photometric range.
*
Enhanced baseline stability. The dual beam
monitoring ratio system enhances baseline stability.
*
Heightened resolution. The large-diameter
light path magnifies the instrument's energy,
reduces noise and enhances resolution.
*
Automatic sequential measurement. The automatic
eight-cell sample holder carries out automatic
measurement of eight samples in succession. It
also features a one-touch measurement of the dissolution
of six drug samples and a blank
*
User-friendly light source. The socket
deuterium lamp and socket tungsten lamp facilitates
easy light source replacement, easy maintenance,
and reduces operation error. |
Convenient
LCD display |
*
Convenient display. The large back-lit
LCD displays both photometric values and spectral
curves.
*
Enhanced service life and reliability.
The soft-touch keypad maximizes service lifetime
and operational reliability.
|
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Specifications
Optical System:
X-shaped monochromator, with
high-resolution, diffraction holographic grating.
|
Wavelength
range |
200nm ~ 1100nm |
Spectral
bandwidth |
0.5nm,
1.0 nm, 2.0 nm and 5.0 (for TU-1800S) |
| |
2.0
nm (for TU-1800) |
| Stray
light |
0.3
%T (220nm NaI) |
| Wavelength
accuracy |
+/-0.5
nm (automatic correction) |
Wavelength
reproducibility |
0.2nm |
Photometric
system: dual beam ratio monitoring system
|
Photometric
method |
Transmittance,
absorbance, energy and concentration. |
Photometric
range |
-0.3~3.0
Abs |
| Photometric
accuracy |
+/-0.3%T
(0~100%T), +/-0.002
Abs (0~0.5 Abs), +/-0.004
Abs (0.5~1.0 Abs) |
| Photometric
reproducibility |
0.15
%T (0~100 %T), 0.001 Abs (0~0.5 Abs), 0.002 Abs
(0.5~1.0 Abs) |
| Baseline
flatness |
+/-0.004
Abs (200nm~1100nm) |
| Baseline
stability |
0.002
Abs/h (500nm, after preheating) |
Software:
single chip system.
|
Photometric
measurement |
measuring
current wavelength transmittance or absorbance,
with the capacity to make coefficient calculations
according to set formula.
|
| Spectrum
scanning |
carrying
out scanning of
transmittance or absorbance
of specified wavelengths together with peak
value checkout.
|
| Quantitative
determination |
setup
of standard curves and direct measurement of
sample concentration.
|
| Kinetic
Measurements |
Time
scanning of transmittance
or absorbance on 1 to 10 specified wavelengths
and handling
data such as peak value checkout, spectral microanalysis
and spectral calculation.
|
| Result
delivery |
printout
of analytical data by using the EPSON LQ series
computers (to be selected at your discretion).
|
Mainframe: A compact spectrophotometer
|
Light
Source |
Socket
deuterium lamp and socket tungsten lamp |
Detector |
A
pair of silicon photodiode |
| Sample
Chamber |
Eight-cell
sample holder |
| Display |
LCD
(320 X 240 dot matrix) |
| Keyboard |
membrane
soft-touch keypad |
| Printer
interface |
a
parallel printing interface (ESC/P command and EPSON-LQ
compatible) |
| Dimensions |
540mm X 400mm X 250mm |
| Weight |
25kg |
Other
Requirements:
|
Power
Source |
voltage 110-230V,
frequency 50-60Hz alternating current |
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Note:
The TU-1800 features all the advanced functions of
the TU-1800S, but is simplified by removing the selectable
bandwidth feature. The TU-1800 will remain at 2.0
nm set spectral bandwidth while the TU-1800S can analyze
using four different bandwidths.
|
