xMark™ Microplate Absorbance Spectrophotometer



Absorbance Linearity Test Report in Checkmark Software
Absorbance Linearity Test Report in Checkmark Software

With its unique imaging capabilities, monochromator design, and spectral scanning feature (which eliminates the need for filters), the xMark™ microplate absorbance spectrophotometer can find the best wavelength within a broad range for any photometric application. The xMark spectrophotometer is also flexible enough to read all standard microplates, from 6- to 1,536-well formats. Using Microplate Manager® software, the xMark spectrophotometer can perform a wide range of end-point and kinetic applications with spectral scanning within low UV to infrared wavelengths. Extensive data analysis includes comprehensive curve-fit models and automated data export in single-plate or batch formats. Benefits include:

  • Monochromator-based system for maximum optical efficiency and flexibility in photometry reading
  • Spectral scanning to define the best absorbance wavelength for assays
  • Imaging capabilities for pixel intensity data in a single well or entire plate
  • Ability to scan custom plates
  • Flexible control and data analysis with PC or Mac software
  • Incubator with programmable temperature control
Wavelength range 200–1,000 nm
Photometric methods Single and dual wavelength
Monochromator step size 1 nm
Bandwidth 5 nm
Wavelength accuracy, minimum ±2.0 nm
Wavelength repeatability ±0.2 nm
Imaging resolution  0.5, 0.75, 1.0 mm 
Indication range 0–4.0 OD
Resolution 0.001 OD
Linearity  ≤2.0%, 0–3.0 OD at 405 nm 
Accuracy ±1.0% or 0.015, 0–3.0 OD
Reproducibility 96-well plate; ≤1.0% or 0.005, 0–3.0 OD at 405 nm
Stability and drift ≤0.010 at OD = 1 at 490 nm
Read time 8 sec/96-well/single wavelength; 15 sec/384-well/single wavelength; 35 sec/1,536-well/single wavelength
Compatible plates  6- to 1,536-well and custom microplates 
Maximum plate height  21 mm 
xMark™ Microplate Absorbance Spectrophotometer
xMark™ Microplate Absorbance Spectrophotometer

PC or Mac, includes built-in incubator, plate shaker, Microplate Manager® 6 software (#168-9520), USB2 cable

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Number Description Options
10013301x xMark Microplate Spectrophotometer User Manual Click to download
5671 xMark Microplate Absorbance Spectrophotometer Insert, Rev B Click to download [ Add to Cart (Free) ]
10011683 Instruction Manual, Microplate Manager v. 6.0, Rev B Click to download