Evolution UV-Vis Spectrophotometers

Transform your UV-Visible experience with Thermo Scientific Evolution Spectrophotometers. Simplified workflows, advanced technology, and an array of accessories consistently deliver the high-quality results you depend on.


From simple measurements to sophisticated research studies, Evolution Spectrophotometers deliver reliable, accurate results. The simple user interface prompts users through the workflow, and complete solutions enable compliance with regulatory requirements. 

Evolution UV-Vis Spectrophotometer features

Our next generation Evolution UV-Vis Spectrophotometers combine reliable and versatile hardware with easy-to-learn, easy-to-use Thermo Scientific Insight Pro Software. Together they will meet the diverse needs your organization requires from an analytical tool.


Meet today’s demands head-on with a solution-based approach

Reliable, versatile hardware

  • Address your laboratory’s needs with fixed or variable bandwidth options
  • Meets chemical, materials science, or biological sampling and measurement needs with a broad range of accessories, including those designed for previous Evolution models

A software partner

  • Meets current 21 CFR part 11 compliance, including database storage  (optional software)
  • Validate according to current USP, EP, or JP standards
  • Streamline your simple, complex, and advanced routines and workflows

Evolution UV-Vis Spectrophotometer selection guide

Evolution Spectrophotometers incorporate a high-performance optical design, versatile Insight Pro Software packages, and the highest quality accessories for the most demanding applications. 


Choose the instrument that’s right for you


Evolution UV-Vis Spectrophotometer specifications

Evolution UV-Vis Spectrophotometer pharmacopeia compliance

For UV-Visible spectrophotometers in regulated laboratories, performance verification at installation and at set intervals thereafter is needed. National pharmacopeias with international reach define specific performance levels for various criteria in the pharmaceutical industry.


Note that Evolution One/One Plus models meet current USP and EP compliance and the Evolution Pro model meets current USP, EP, and JP compliance.

Parameters Standard(s) used Pharmacopeia specification (tightest)
Wavelength accuracy Mercury lamp USP - ≤ ± 1 nm in UV range ≤ ± 2 nm in visible range
JP - ≤ ± 0.3 nm over full λ range
Holmium perchlorate solution USP - ≤ ± 1 nm in UV range ≤ ± 2 nm in visible range
Didymium solution or glass USP - ≤ ± 1 nm in UV range ≤ ± 3 nm in visible range
JP - ≤ ± 0.5 nm over full λ range
Wavelength repeatability Mercury lamp JP - ≤ ± 0.2 nm over full λ range USP - ≤ ± 0.5 nm over full λ range
Holmium perchlorate solution EP/USP - ≤ ± 0.5 nm over full λ range
Didymium solution or glass JP - ≤ ± 0.2 nm over full λ range
Photometric accuracy Certified potassium dichromate (K2Cr2O7) EP - ± 0.010A USP - ≤ ± 0.010A in UV range ≤ ± 0.008A in visible range
Certified filters EP - ≥1.0A, ±0.8%A; <1.0A, ±0.008ª
JP - ± 1% of upper and lower limits of standard transmission rate value
Neutral density filters (Vis only) TGA
Photometric repeatability Certified potassium dichromate (K2Cr2O7) JP - For standard values ≤ 0.500, ±0.002 of mean; for standard values >0.500, ±0.004
Neutral density filters (Vis Only) JP - For standard values ≤ 0.500, ±0.002 of mean; for standard values >0.500, ±0.004
Stray light Certified potassium chloride (KCl, 12g/L) EP - > 2.0A @ 198 nm (< 1%T)
Potassium iodide or sodium iodide (KI/NaI, 10g/L) USP/EP - > 3.0A @ 220 nm
Acetone USP - > 0.7A @ 300 nm
Sodium nitrite (NaNO2, 50g/L) EP- > 3.0A @ 340 nm
Resolution Toluene in hexane (0.02%) Ratio @ 0.5 SBW ≥ 2.3 at 25 °C
Photometric linearity Certified filters JP/EP - Verify linearity of transmission rate, r2 > 0.999


Evolution UV-Vis Spectrophotometer ordering information


Part Number

Evolution One UV-Vis Spectrophotometer


Evolution One Plus UV-Vis Spectrophotometer


Evolution Pro UV-Vis Spectrophotometer