DietQuest Spectrophotometers

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.

Some Examples of Software:-


Assay Program

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


DataStream

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.


ColourScan

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


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 (For the CE 2410 only)

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


Kinetics

Kinetic measurements with plots, reprocessing of data.


Kinetics M

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


Validation

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



CE 3410


CE 2410


CE 7210



DietQuest

 UV/Visible

Single Beam


DietQuest

 Visible only

Single Beam



DietQuest

  UV/Visible

Double Beam












Optical System



Single Beam



Single Beam



Double Beam

Grating Monochromator



Littrow, 1200 L/mm



Littrow, 1200 L/mm



Czerny Turner 1200 L/mm

Wavelength Range



190-1100nm



325-1100 nm



190-900nm

Wavelength Accuracy



Better than ±1nm



Better than ±1nm



Better than ±0.5nm

Optical Bandwidth



1.8nm



4nm



1.8nm

Wavelength Precision



Better than 0.1nm



Better than 0.1nm



Better than 0.1nm

Photometric Noise



Better than ±0.00004A at 1A, 500nm, RMS



Better than ±0.00004A at 1A, 500nm, RMS



Better than ±0.00004A at 1A, 500nm, RMS

Photometric Range



-0.3 to 3A



-0.3 to 3A



-0.3 to 3A

Scan Speed



1-4000 nm/min



Optional scan available



1-4000 nm/min

Baseline Flatness



Better than ±0.002A p.t.p.



Optional scan available



Better than ±0.001A p.t.p.

Photometric Accuracy



Better than ±0.005 at 1A



Better than ±0.005 at 1A



Better than ±0.004 at 1A

Method Storage



30 methods security code protected



30 methods security code protected



30 methods security code protected

Curve Fit



Linear, quadratic and cubic curves, to 30 concentration standards or replicates



Linear, quadratic and cubic curves, to 30 concentration standards or replicates



Linear, quadratic and cubic curves, to 30 concentration standards or replicates

Computer Interface



Bi-directional serial RS232 and USB ports



Bi-directional serial RS232 and USB ports



Bi-directional serial RS232 and USB ports

Stability



Better than 0.001A/hr



Better than 0.001A/hr



Better than 0.0001A/hr

Size and Weight



480 x 340 x 205; 19.5 kg



480 x 340 x 205; 19.5 kg



635 x 410 x 210; 33 kg

Instruments are supplied complete with cell holder(s), power cable, manual and short form operating instructions.


DietQuest CE 3410

190-1100nm range, 1.8nm bandwidth, integral printer             


DietQuest CE 2410

325-1100nm range, 4nm bandwidth, integral printer


DietQuest CE 7210

190-900nm range, 1.8nm bandwidth, double beam