Molecular Devices SpectraMax® M3/M4/M5/M5e
The SpectraMax® M3, M4, M5 and M5e Multi-Mode Microplate Readers are a modular, upgradeable dual-monochromator microplate reader platform offering a wide range of high performance multi-mode capabilities ideal for life science research and drug discovery screening. Choose from a three- (M3), four- (M4), or five- (M5/M5e) mode reader customized to your specific applications or budgetary needs, while optional capabilities allow you to upgrade with other detection modes at a later time. All configurations offer a triple-mode cuvette port, accurate temperature control, microplate shaking and comprehensive data management using our SoftMax® Pro Software. Detection modes include:
- UV-Visible Absorbance (Abs)
- Fluorescence Intensity (FI)
- Luminescence (Lum)
- Time-Resolved Fluorescence (TRF)
- Fluorescence Polarization (FP)
Molecular Devices SpectraMax® 190
The SpectraMax® 190 spectrophotometer is ideal for most life science applications, especially DNA analysis. For aqueous solutions, our patented* PathCheck® sensor technology senses the depth of the liquid in each microplate well, and normalizes the absorbance value to a 1-cm pathlength. The corrected absorbance is within 5% of the value obtained in a conventional spectrophotometer.
Industry leading SoftMax® Pro microplate analysis software provides comprehensive instrument control and data reduction.
Molecular Devices SpectraMax® Plus 384
The new SpectraMax® Plus384 is the only spectrophotometer with a built-in cuvette port and microplate drawer. Now you can run both standard spectrophotometer and microplate reader applications on the same instrument. Read one sample or up to 384 at a time—it's your choice. Use any standard cuvette, 12 x 75 mm test tube, 96- or 384-well microplate. For even more sample throughput, the SpectraMax Plus384 can be easily integrated into a full robotic system. The SpectraMax Plus384 easily adapts to fit your sample processing requirements. Patented PathCheck® Sensor
PathCheck Sensor eliminates the last major difference between microplate readers and spectrophotometers—optical pathlength. PathCheck Sensor provides a powerful new tool for microplate analysis.
Until now, you could never get the same absorbance readings from a microplate reader as from a spectrophotometer because samples in a microplate have a volume-dependent pathlength. PathCheck Sensor is the only patented technology available that measures the depth (optical pathlength) of samples in the microplate. SoftMax® Pro software can automatically normalize the well absorbance to a cuvette equivalent pathlength of 1 cm. It's like having 96 or 384 cuvettes!
The Best Performance by Design
- Eliminate standard curves. For compounds with a known extinction coefficient, concentration can be calculated directly from absorbance.
- Pipetting does not have to be accurate. With PathCheck Sensor, it is acceptable to have different volumes in the wells. Just put 20 µl - 300 µl of sample or standard into each well and read the plate. The PathCheck Sensor will correct for the volume differences in all 96 or 384 wells, and report 1 cm absorbance values.
- Extend the dynamic range to 6+ OD. If a well reads out of range (> 4 OD), decrease the volume (100 µl of sample can be used with excellent precision) in that well and reread the plate using the PathCheck Sensor. A 100 µl sample (optical pathlength ~0.3 cm) that reads 2.8 OD will be corrected to ~9.2 OD.
- Detect pipetting errors in 96- or 384-well microplates. The PathCheck Sensor measures differences in volume between the wells, so you can identify and eliminate sources of error from your data or correct your absorbance values.
- Quickly and easily test multichannel dispensers and pipettors. By measuring the depth of the liquid in the well, you can determine the volume of liquid dispensed. Even 96- or 384-channel dispensers can be tested in a matter of minutes. No need for dyes. Detect volumes as low as 100 µl in 96-well standard microplates, 30 µl in half-area or 384-well microplates, and 4 µl using a liquid addition method in half-area well microplates.
The SpectraMax optical system is the only multichannel design that truly mimics a dual-beam spectrophotometer. Each sample has a discrete sample beam and reference beam so that each well is measured directly, eliminating error due to variations in light output between the fibers. The 9 channel system (8 for the microplate and 1 for the cuvette port), consisting of 9 sample beams and detectors and 9 reference beams and detectors, delivers both superior precision and speed of reading across the microplate through 4.0 OD.