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Single Beam Spectrophotometers for Dissolution Testing
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CE 3021D Spectrophotometer
This is a high quality single beam spectrophotometer from the Super
Aurius series, with an 8 cell changer and 1.8nm optical bandwidth.
Its stability of ±0.001 A / hour makes it suitable
for dissolution monitoring, and may be used as a general purpose
or scanning spectrophotometer if required.
Full wavelength and cell programming, as well as wavelength scanning,
are possible. Operation is via embedded software using an LCD) screen
to display menus, prompts etc. with entries made through its comprehensive
keypad. Enhanced accuracy is provided, as with the CE 7260, by the
very low, 0.01%, straylight. Software for validation is available.
Used in System 2.
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Single Beam System
This picture shows the CE 3790 dissolution tester coupled to a
CE 3021 D single beam spectrophotometer.
The small size of the spectrophotometer coupled with the compact
design of the tester lead to a system requiring only the minimum
of bench space.
This combination is the basis from which System 2 is formed. |
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| The system uses the same CE 3792 WIN DISS
software used by the double beam system 1, collecting data and providing
system control. Also the tester provides 7 stirred vessels with the
eighth position used for circulating the temperature controlled water,
heated by a 1000W element. |
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Sample Compartment
The eight cell auto-changer is shown here in position in the single
beam spectrophotometer. The compact compartment accommodates the
holder fitted with its eight cell changer in a convenient fashion,
with all the sampling tubes passing through the special flow tube
port.
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Diode Array Dissolution System
A dissolution system based on the Diode Array Spectrophotometer
shown here, is available for use in conjunction with the CE 3790
dissolution tester and is provided with its own comprehensive control
and data processing software. |
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Automatic Cell Changer
The compact and convenient to use eight cell changer is shown here,
fitted with the eight cell holder, before fitting to the instrument.
The flow tubes are tidily guided to the flowcells from the flow
tube port fitted to the instrument.
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