Assay Program

Formulae for measurements at up to 10 wavelengths may be entered rapidly. Programming and formatting of results is automatic at entry without user intervention. Multi-sample assays are automatic and may be stored as methods.

Concentration Measurement

In the concentration measurement mode samples may be measured either by using a calibration standard, or entering a known factor relating concentration to absorbance.

Curve And Line Fitting

A straight line, quadratic or cubic 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 and multi-cell kinetic measurements are possible with plots and data displayed on screen. Data may be reprocessed and curves stored, security code protected against tamper or deletion.

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. Computations at up to four wavelengths are also provided.

DNA And Protein Assays

Protein analyses 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.

Ratio And Difference

Absorbance ratioing at 280/260nm, or two user selected wavelengths, is provided for DNA purity assays. The scaled difference of absorbance values at two wavelengths is also provided.

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.