Double Beam Wavelength Scans

Scans at up to 4000nm/min are presented on screen or printed with all peaks annotated with wavelength and absorbance. Tables are also presented listing all peaks and troughs with values.

Display Scrolling

Use of the display scrolling facility enhances the effective
screen size and enables spectra and data up to 430mm wide
to be viewed.

Dynamic Scan Recall

The last 25 or more scans or plots are automatically retained for recall by entering their scan sequence number and may be reprocessed, overlaid or transferred to protected memory for future recall.

Overlaid Spectral Scans

Up to eight scans, including stored scans, may be overlaid, with or without offsets for convenient comparisons or further manipulation.

Difference Spectra

New wavelength scans or scans from store may be presented on screen and the difference spectra produced. The scans may be normalised enabling spectral stripping to reveal impurities or additives.

Derivative Spectra

Derivative spectra, up to fourth are readily produced, with selectable smoothing, either alone or superimposed on the fundamental, with or without an offset. Scaling is automatic with all peaks and troughs quantified.

Scan Storage

Up to 100 spectra may be stored in safe memory for future recall. Each spectrum is automatically allocated a recall number, when stored, and may be security code protected against tamper or deletion.

Programmed Scans

Automatic scans, single or repeat may be made of a cell program of up to 4, 6 or 8 cells. A programmed sequence of scans may also be made of a single sample.

Time Course Plots

Changing samples or flows may be examined and displayed by making a time course plot. Data may be reprocessed and stored, security code protected, with an automatically assigned recall number.

Difference Spectra

Many quantitative methods are available including band area computation with background correction, differencing and stripping of spectra, wine and colour assays, mathematical calculations between several wavelengths, protein and DNA assays.

Curve and Line Fitting

A straight line, quadratic or cubic concentration curve may be fitted to up to 30 standards, with or without an intercept at the origin. Standards may be deleted and replaced and a new curve fitted.

Reaction Kinetics

Single cell kinetic measurements are possible with plots and data displayed on screen. Data may be reprocessed, regression analysis applied and curves stored, security code protected against tamper or deletion.

Multi-Cell Reaction Kinetics

Up to four or six cells are automatically measured with all reaction curves displayed on screen. Each curve may be selected for processing with the results of regression analysis printed.

Multi Wavelength Assays

Assays are provided using either two or three wavelengths. A wine colour assay is provided which may use up to ten different wavelengths.

DNA and Protein

DNA and Protein assays may be made using either the 2 or 3
wavelength methods of Warburg and Christian. Also programmed are techniques and analytical procedures for assays by Lowry, Bradford, Biuret and BCA methods.

Band Area and Height Computation

Cell Program

Using the various cell changers, measurements may be made on up to 4, 6 or 8 cells at a single wavelength with cycle time and number of cycles entered by the operator. A cell and wavelength program may be combined.

Wavelength Program

Measurements may be programmed for 10 different operator selected wavelengths with the cycle time and number of cycles selected by the operator. A wavelength and cell program may be combined.