Rfurbished UV/Vis spectrophotometer, HP 8452A

The 8452A spectrophotometer is a single beam, microprocessor controlled. This unit is much faster than conventional instruments with better precision and better sensitivity. This unit can be controlled by both HP and non HP computers equipped with HP UV-VIS software. The HP-IB card is used to communicate between the 8452A and the computer.

 

Full spectrum

0.1 sec

Wavelength range

190-820 nm (depending on type)

Wavelength accuracy

+/- 2nm

Wavelength Reproducibility

+/- 0.05nm

Spectral Bandwidth

2nm (depending on type)

Dimensions

60.5 W x 18.5 H x 42.4 D cm

Weight

15.1 kg

Voltage

100-120 or 220-240 VAC

Frequency

47-66 Hz

Ambient Temperature (Operating)

0 to 40’C

Ambient Temperature (non-operating)

-40 to 65’C

Maximum rate of change

10’C hour

Humidity

5 to 85%

 

UV/Vis spectrophotometer, Varian Cary 1

UV/Vis spectrophotometer, Varian Cary 100

The Varian Cary 100 is a double beam, dual chopper, recording spectrophotometer controlled by a computer operating under Windows 2000, and running WinUV software. The instrument has the following features, using 1-cm cells.

    • Quartz overcoating - protects the optics from the environment and allows cleaning without damage to their reflective surface
    • Sealed optics - prevents exposure to corrosive environments
    • Variable slits - allow optimum control over data resolution. The spectral bandwidth can be set down to 0.2 nm. (Many instruments on the market are limited to a fixed SBW of 2 nm)
    • A working range past 3.5 absorbance units - Dilution of a sample, to bring it into a range that the spectrophotometer can measure, is therefore not required
    • A phase locked wavelength drive - prevents peak shifts and peak suppression at high scan speeds.
    • Double choppers - ensure that the sample and reference beam strike the detector at the same point, removing any errors due to non uniformity of the detector
    • The large sample compartment - gives you more flexibility in sample size
    • Centralized accessory control - all accessories are centrally controlled by the Accessory Controller, built into the Cary instrument. Instead of each accessory having their own electronics, the Accessory Controller provides the interface between the Cary software and the accessories. If your custom-built accessories will fit into the Cary instrument, you can use the Accessory Controller to control them. Even external accessories, such as titrators, lasers and pH meters can be controlled.