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Evolution 201 UV VIS Spectrophotometer

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Evolution 201 Computer Control UV – Vis

Optical Design : Double-beam with sample and

reference cuvette positions; Czerny-Turner

Monochromator.

Spectral Bandwidth (s) : 1.0 nm

Light Source : Xenon flash lamp

Detector : Dual Silicon Photodiodes

Scan Ordinate Modes : Absorbance, % Transmittance, % Reflectance, Kubelka – Munk, log (1/R), log (Abs), Abs * Factor, Intensity

Resolution : > 1.6 (peak-to-valley ratio; toluene in

hexane)

Wavelength range : 190 – 1100 nm

Accuracy : ± 0.8 nm (full range 190 to 1100 nm)

± 0.5 nm (546.11 nm mercury line)

Repeatability : ≤ 0.1 nm (546.11 nm mercury line, SD of 10 measurements)

Scanned Speed : < 1 to 6000 nm/min; variable

Data Intervals : 10,5,2,1.0, 0.5, 0.2, 0.1 nm

Photometric Range : > 3.5 A

Display Range : -0.3 to 4.0 A

Accuracy – Instrument : 0.5A : ± 0.004A

1 A : ± 0.006A

2 A : ± 0.010 A

Measured at 440 nm using neutral density filters

traceable to NIST / NPL

Accuracy – Sealed Solutions (EP/BP/TGA) : ± 0.010

A (60 mg/L K2Cr2O7)

Noise : 0A : ≤ 0.00015 A

1A : ≤ 0.00050 A

2A : ≤ 0.00080 A

260 nm, 1.0 nm SBW, RMS

Drift (Stability): < 0.0005 A/hr

500 nm, 1.0 nm SBW, 1 hour warm-up

Stray Light : KCl, 198 nm : ≤ 1% T

Nal, 220 nm : ≤ 0.05% T

NaNO2 340 nm : < 0.05% T

Baseline Flatness : ± 0.0010A

200 – 800 nm, 1.0 nm SBW, smoothing

Keypad : Sealed Membrane

Local Control Option

Display : Touchscreen LCD panel; 800 x 480; 17.8

cm (7 in) diagonal

Operating System : Microsoft Windows XP embedded

Dimensions : 62.2 cm L x 48.6 cm W x 27.9 cm H

(24” L x 19” W x 11” H)

Weight : 14.4 kg (32 lb)

Electrical Supply : 100 – 240 V, 50 – 60 Hz, selected

automatically 150 W maximum

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