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SpectraMax 190 Absorbance Microplate ReaderSpectraMax 190 Absorbance Microplate Reader

Enables data acquisition in endpoint, kinetic, and spectral scan modes at wavelengths across the UV-visible wavelength range, with the only temperature-independent method of pathlength correction.

The patented multichannel optical design of the SpectraMax® 190 Absorbance Microplate Reader mimics a dual beam spectrophotometer, measures each sample in the plate directly, and eliminates measurement error due to variations in light output between optical fibers on other instruments for more reliable data reporting. The eight-channel system delivers both high precision and speed when reading 96-well microplates for endpoint measurements, kinetic assays, and spectral scans.

The optical system of the SpectraMax 190 Microplate Reader is built around a monochromator, which allows for selection of up to six wavelengths at a time for absorbance detection in the UV-visible wavelength range (190 nm - 850 nm). Narrow bandwidths deliver increased measurement accuracy and linearity over the widest range of assays, including DNA quantitation in the UV range.

Using the patented PathCheck® Pathlength Measurement Technology, the SpectraMax 190 Microplate Reader transforms each well in a microplate to a fixed optical pathlength cuvette. This temperature-independent normalization corrects for varying well volumes and can eliminate standard curves by allowing the calculation of concentrations directly from the absorbance with a known extinction coefficient, as exemplified with nucleic acid and protein quantitation.

The SpectraMax 190 Microplate Reader is supplied with SoftMax® Pro Data Acquistion & Analysis Software, Molecular Devices' industry leading all-in-one data acquisition and analysis software. Among the various ready-to-read protocols, users will find pre-written SpectraDrop™ Plate protocols enabling Micro Volume applications measurement. Additionally, the SpectraMax 190 Microplate Reader can be seamlessly integrated with the StakMax® Microplate Handling Stacker through the SoftMax Pro Software.


Enabling Assays without Compromise

  • Eliminate the need for purchasing and changing out filters for wavelength optimization with a monochromator-based wavelength selection for UV-visible absorbance between 190 nm and 850 nm.
  • Read up to 6 wavelengths in endpoint or kinetic mode for 96-well plates, and perform spectral scans to determine wavelength peaks.

Measuring Accurately and Reproducibly

The SpectraMax 190 Microplate Reader offers:

  • Better experimental signal discrimination using narrow absorbance bandpass for superior peak resolution and increased accuracy.
  • Monitoring of temperature-sensitive reactions with consistent temperature regulation from ambient to 45°C.
  • Correction for varying microplate well volumes and the elimination of standard curves based on PathCheck Technology, the only temperature-independent pathlength correction method.
  • Thorough mixing of samples in microplate wells by user-programmable Automix feature.

Comprehensive Reader Validation

Molecular Devices microplate readers have the most variety of tools available for users to meet their diverse hardware and software validation needs. Molecular Devices provides complete solutions with:

Automating with Ease

  • Seamless automation coupling with the StakMax Stacker, Molecular Devices' own integrated microplate stacker designed exclusively for the SpectraMax Reader
  • Note:The StakMax Stacker is compatible with the currently shipping reader, as designated with the serial number NNR-xxxxx. For older models, please contact your local sales representative.
  • No physical modifications required to the automation-compatible design of the reader for integration into automated platforms. Molecular Devices' readers have been integrated into all major automation platforms.
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