.
SPECIFICATIONS

Spectrophotometer: Digitally controlled, double beam, recording. The instrument uses a Cary® double monochromator consisting of a 30 degree fused silica prism in series with a 600 line/mm echelette grating, each with its own collimating mirrors
and slit system.

Light Source: Visible range-250 Watt quartz halogen.
Ultraviolet range-110 Watt air cooled deuterium.

Wavelength Range: 185 nm - 870 nm (175 optional).

Wavelength Accuracy: ± 0.4 nm over entire range (typically 0.2 nm).

Wavelength Repeatability: Better than 0.05 nm (0.02 typical).

Wavelength Drive: Stepper motor. Smallest step size is 0.01 nm.

Wavelength Scan Speed: Maximum data collection speed 300 nm/min.

Wavelength Slew Rate: 3600 nm/min.

Wavelength Resolution: 0.1 nm in most of UV-VIS range.

Selectable Bandwidth: .01 nm to 12 nm.

Photometric Display: Numeric and graphical display on screen.

Photometric Digital Display Range: Any range to 6.0 Absorbance or 0-200% transmission.
Selectable, prior or during scan.

Photometric Linearity: 0.0007 AU at 1.5 AU; 0.0001 AU at 0.1 AU.

Photometric Accuracy: Using NIST 930D filters

+/- 0.001 at 0.5 AU

+/- 0.003 at 1.5 AU

Long Term Drift: UV-VIS: 0.0005 AU/Hr. 0.0001 typical. (10 hours at 500 nm at 25 degrees C.)
Baseline Stability: (long term): 0.0005 AU/Hr. 0.0001 typical. (10 hours at 500 nm at 25 degrees C.)
Baseline: Auto subtract, 0.001 AU flatness at 200 to 870 nm.
Signal Averaging: Keeps all repeat scans or just the average.
Smoothing: Smooth by least squares polynomial fit.
Aviv Software: Windows NT based system (menu driven). Includes all common math operations on data sets. In addition, we offer the following features:
Data is saved in ASCII format for easy import into other analytical and graphics programs.
Data can be easily exported to IGOR PRO for MS WINDOWS for data analysi and presentation graphics.
Kinetics Mode: Records from 10 points per second to one point per 999 seconds.
Temperature Program: Software control of thermoelectric device to maintain constant sample temperature. Generate rising or falling temperature steps, or ramps.
Records:
Absorbance vs. Temperature at fixed wavelength
Absorbance vs. Wavelength at programmed temperatures
Temperature vs. Time
Absorbance vs. Concentration
Absorbance vs. pH

Note: All specifications subject to change without notice.