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Aurius and Super Aurius Spectrophotometers

Purchased Spectrophotometers are supplied complete with single cell holder, power cable, operators manual and short form instructions.

Specifications and Ordering of spectrophotometers and accessories

Cecil Instruments policy is one of continuous development. We therefore reserve the right to change specifications without notice.


Optical Bandwidth

Wavelength Range

Wavelength Accuracy

Wavelength Reproducibility

Self Test and Calibration


Display Screen - LCD

Display Scrolling


Photometric Ranges

Photometric Accuracy

Photometric Noise


Multi-Wavelength Analysis

Assay Program  

Curve Fitting and Editing

Cell and Wavelength Programming

Method Storage

Absorbance Ratios

Peak Seek

Reaction Kinetics

Batch Sampling

Real Time Clock

Computer/printer interfaces

Sample Temperature



Power Requirements

Littrow using 1200 L/mm holographic grating


190-1100nm; 325-1100nm visible version

Better than ±1nm


Automatic at switch on

Typically less than 0.01% at 220nm and 340nm

High resolution backlit with contrast control  

Provides 6 screen widths for viewing plots etc.

Automatic by press button

Digital display of -0.3-3A, 0-200%T, 0-9999C

±0.005A or 1% whichever is greater

Less than ±0.0002A (500nm)

Better than 0.001A/hour at constant temperature

2 and 3 wavelength methods.

Enter multi-wavelength formula for automatic computation and formatting of any assay

Linear, quadratic or cubic; up to 30 standards

Up to 8 cells and 10 wavelengths combined

Up to 30 methods stored in protected memory

260/280nm or two selected wavelengths

Automatic search programme, baseline corrected

Tabulation of results, reaction plots, reprocessing

100 samples, internal control, screen display

Timed and dated reports

Bi-directional serial RS232 and USB ports

Displayed and set from keyboard

480 x 340 x 205mm

16.8Kg Visible; 18.6Kg UV

110-250V, 50/60Hz, 170W/120W UV/Visible versions

Super Aurius additional specifications:-

Optical Bandwidth

Wavelength Scale Expansion

Scan Speed

Photometric Plotting Ranges

Baseline Flatness

Overlayed Spectra

Spectral Reprocessing

Spectral Storage

Derivative Spectra

Time Course Plotting


Selectable by keyboard entry 1-100 nm/cm

Selectable by keyboard entry 1-4000 nm/m

Keyboard entry of limits; or automatic optimum  

Better than ±0.002A (300 nm/min) most of range

Spectra and derivatives with or without offset

Spectra manipulated and replotted over any range

Up to 100 spectra may be stored security code protected

1st and 2nd derivatives

Plots may be reprocessed and stored



CE 2011 Spectrophotometer

325-1100 nm Wavelength range

4nm Bandpass

UV / Visible

CE 2021 Spectrophotometer

190-1100 nm Wavelength range

4nm Bandpass

CE 2021D  Tablet Dissolution Spectrophotometer

Special version suitable for tablet dissolution applications, using TD software

System 1

Spectrophotometer, spare lamp(s) spare fuses, 2 cells and dust cover.

Super Aurius

CE 3021 Spectrophotometer

1.8nm Bandpass, 190-1100nm wavelength range, scanning.

CE 3021D Tablet Dissolution Spectrophotometer

Special versions suitable for tablet dissolution applications, using TD software.

System 1 : Cells and Spares

Spectrophotometer with two silica cells, spare lamps, spare fuses and dust cover.

Example: CE 2021 system 1 is a CE 2021 with spare deuterium and tungsten lamps, spare fuses, 2 silica cells and dust cover.

Cell Holders

Adjustable holder for sipette or single 10mm cell

Universal cell holder, 10mm cells upwards

Long pathlength cylindrical cell holder

Holder for solid samples or films

Ultra-microcell holder : 50-µl cells

Ultra-microcell holder : 5 and 10-µl cells


Cell Changers And Holders

4 cell automatic changer (no holder)

4 x 10mm cell holder for auto changer

4 x 50mm cell holder for auto changer

6 cell automatic changer and holder

8 cell tablet dissolution autochanger system

4 microcell manual changer and holder

3 x cell changer (1-40mm) for water analysis


Sipette And Batch Sampling

Holder for SIP or sipette cells up to 50mm

Batch sampler for 40 samples with pump

Batch sampler for 100 samples with pump

Return micro-sipette system no cell or holder


Calibration Filters

Holmium filter in holder

Didymium filter in holder

Set of 2 certified wavelength filters in holders

Set of 4 certified absorbance filters in holders

Set of 6 certified absorbance filters in holders


Temperature Control - Water

Holder for single or sipette cell

Holder for 4 cells - for autochanger

Lid and pipe port for water thermostatting


Temperature Control - Thermoelectric

Thermoelectric programme controller

Holder for single or sipette cell

Holder for 4 cells with autochanger


Temperature Programming

Thermoelectric programme controller

Single 10mm cell holder


Sample Stirring

Electronic controller for sample stirring

Cell holder for sample stirring

Water thermostatted holder for stirring

4 cell holder for sample stirring



Deuterium lamp with hours indicator

Tungsten halide lamp - in pairs


Printers And Cables

RS232c cable for 25 pin PC  

RS232c cable for 9 pin PC  

Printer connection cable

Dot matrix printer

Print rolls and ribbon for integral printer

Part No.

1010 32 00

1010 38 00

1010 39 00

2020 33 00

2020 39 00

2021 30 00



2021 34 00

2010 24 00

2010 36 00

2021 36 00

3021 37 00

2020 38 00

2020 35 00



2020 37 00

2021 82 00

2021 82 02

2021 21 00



202 01 44

303 01 30

303 40 00

594 44 00

594 66 00



1010 33 00

2020 36 15

1010 05 00



CE 2024

2020 31 20

2021 32 20



CE 2024

2020 31 20



7200 31 01

2010 32 00

2010 33 00

2010 34 00



2202 01 42

2303 01 40



2021 26 00

2021 83 00

8000 71 00

8000 70 01

2020 03 20

Some Examples of Software:-

Assay Program

Construction and entry of mathematical formulae involving measurements at multiple wavelengths with automatic computation of assay results.


Fast data transfer to PC for use with Excel or other spread sheets.

Quant M

Multi wavelength assays at 2 or 3 wavelengths, Warburg and Christian assays at 2 or 3 wavelengths, wine assay, at up to 10 wavelengths.


The instrument will automatically perform a wavelength scan and perform a variety of numerical analyses of colour.

Quant P

Protein assay using the methods of Lowry, Bradford, Biuret and BCA.

Quant S - Super Aurius only

Quantitation of corrected bands, difference spectra, spectral stripping, overlayed spectra, spectral storage.

Program C

Cell program for up to 4, 6 or 8 cells.

Program W

Wavelength program for up to 10 wavelengths and timed interval measurements at a fixed wavelength.

Scan - Aurius only

Wavelength scans with peak labelling and peak tables. Time course plots while re-processing.


Kinetic measurements with plots, reprocessing of data.

Kinetics M

Multi-cell Kinetics linked with autocell changing, and plotting of reaction curves.


Absorbance and Wavelength validation using certified standards or liquids. Validation of optical bandwidth, etc.