Request for Quote

Product Size

-

Baseline Flatness

±0.0015 A (200–800 nm)
2.0 nm SBW, smoothed

Description

Evolution 350 Spectrophotometer

Detector Type

Dual Matched Silicon Photodiodes

Dimensions (L x W x H)

53 x 61 x 38 cm / 20.8 x 24 x 14.9 in.

Drift

<0.0005 Abs/hour, 500 nm, 2.0 nm SBW, 2 hr warm-up

Electrical Requirements

100–240 V, 50–60 Hz

For Use With (Application)

Academic, Chemicals, Food & Beverage, Chemicals Environmental, Industrial QA/QC, Material Science, Pharmaceuticals

Lamp

Xenon Flash Lamp
Typical Lifetime: >5 years. Longer if not using live signal

Warranty Period: 3 year source replacement warranty

Noise

Photometric

0A: <0.00018 A

1A: <0.00022 A

2A: <0.00050 A

500 nm, 2.0 nm SBW, RMS

Optical Design

Modified Ebert; Double beam with sample and reference cuvette/accessory positions

Pharmacopoeia Compliance Testing

Resolution (Toluene in Hexane) Peak/Trough Ratio >1.8 with 1nm slit setting

Photometric Accuracy (60mg/L K2Cr2O7) <±0.01 A relative to calibrated sealed standard

Stray Light <0.13 %T at 198 nm with KCl per EP

220 nm: <0.01%T NaI (behaves identically to KI for USP)

Wavelength Accuracy ±0.20 nm (546.11 nm Hg emission line), ±0.30 nm 190–900 nm

Wavelength Repeatability Peak separation of repetitive scanning of Hg line source <0.10 nm

Photometric Accuracy Instrument

1A: ±0.004 A

2A: ±0.004 A

3A: ±0.006 A

Measured at 546 nm using neutral density filters traceable to NIST. When testing instrument performance, the specification used for pass/fail determination is the sum of the instrument specification listed here and the uncertainty in the calibration data for the filter, listed on the calibration certificate.

Photometric Display

±6 A

Photometric Range

>4 A

Photometric Readout

Absorbance, % Transmission, % Reflectance, Kubelka-Munk, Log (1/R), Log(ABS), ABS x Factor, Intensity

Photometric Repeatability

1A: ±0.0025 A

Scan Ordinate Modes

Absorbance, % Transmittance, % Reflectance, Concentration, 1st–4th Derivative

Spectral Bandwidth

Variable 0.5, 1.0, 1.5, 2.0, 4.0 nm

Stray Light

198 nm: 2.9 A KCl

220 nm: 4.2 A NaI

340 nm: 4.3 A NaNO2

Wavelength Accuracy

±0.20 nm (546.11 nm Hg emission line), ±0.30 nm 190–900 nm

Wavelength Data Interval

10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05 nm

Wavelength Range

190–1100 nm

Wavelength Repeatability

Standard deviation of 10 measurements <0.05 nm

Wavelength Scan Speed

3800, 2400, 1200, 600, 240, 120, 60, 30, 10, 5, 1 nm/min

Intelliscan

Weight (English)

48.5 lbs

Weight (Metric)

22 kg