Luminex 200 Sampling Probe

Luminex xMAP technology combines advanced fluidics, optics, and digital signal processing with proprietary microsphere technology to deliver multiplexed assay capabilities. The Luminex Systems are a series comprised of three instrument models—MAGPIX, Luminex 200 (LX200) and FLEXMAP 3D. These instruments utilize analyzers based on the principles of quantitative fluorescent microscopy or fluorescent flow cytometry and are designed to meet the needs of any size research laboratory.

Luminex instruments overview



Simple, affordable and compact. This multiplexing unit performs up to 50 different tests in a single reaction volume with a plate read time of 60 minutes. Based on CCD imaging technology it is exclusive for its compactness and easy to use operation procedure.

Luminex 200 System

Luminex 200

The industry standard. The standard instrument for multiplexing able to perform up to 80 different tests in a single reaction volume. The instrument is flow cytometry-based and capable of delivering fast and cost effective results.



Speed and throughput. Most advanced and multifunctional multiplex unit for simultaneous measurement of up to 80 tests in a single reaction volume, compatible also for 384-well plates.

Comparison of Luminex instruments

  MAGPIX System
Efficient and compact in size
Luminex 200 System
The versatile, efficient standard in multiplexing
High-throughput, multiplex, automation compatible
 MAGPIX System LX200 SystemFLEXMAP 3D System
OpticsLED/CCD cameraLasers/APDs/PMTsLasers/APDs/PMTs
HardwareFluorescent imagerFlow cytometry basedFlow cytometry based
SoftwarexPonent 4.3xPonent 4.3xPonent 4.3
ApplicationsProtein/Nucleic AcidProtein/Nucleic AcidProtein/Nucleic Acid
Bead compatibilityMagneticMagnetic/polystyreneMagnetic/polystyrene
Multiplex capacity50100500
Read time (96-well plate)~ 60 min~ 40 min~ 20 min
Dynamic range3.5 logs3.5 logs4.5 logs
SensitivityDetect ≤ 700 PE fluorochromes per xMAP microsphereDetect 1,000 PE fluorochromes per xMAP microsphere 
Microtiter plate96 well96 well96 and 384 well
Weight (Analyzer)17.5 kg(38.5 lbs)49 kg (113 lbs)77.1 kg (170 lbs)
Magnetic 96-well SeparatorCat. No. EPX-55555-000

Accessory equipment and reagents are available for use with assays run on Luminex systems, including sheath fluid, calibration kits and performance verification kits. We are committed to ensuring that you have all the necessary components you need to run successful Luminex RNA & protein quantitation assays on MAGPIX, LX200, or FlexMAP 3D Luminex systems.

The Hand-Held Magnetic Plate Washer (96-well) is designed for fast and simple removal of supernatant from samples bound to magnetic particles. The Hand-Held Magnetic Plate Washer (96-well) is an ideal tool for use with Invitrogen singleplex and multiplex biological assays based on the Luminex xMAP Technology. These assays make use of Luminex MagPlex or magnetic microspheres, and the MAGPIX, LX200, or FLEXMAP 3D instruments.

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Luminex technology

Luminex instrumentation

Luminex instrumentation is comprised of three instrument models—MAGPIX, LX200 and FLEXMAP 3D. These instruments are based on either the principles of quantitative fluorescent microscopy or fluorescent flow cytometry. The multiplex quantitation capability of an assay is dependent upon instrument model, and ranges from 50 analytes with use of the MAGPIX, to 500 analytes with the FLEXMAP 3D.  Used in combination with ProcartaPlex, the Luminex platform delivers fast and cost-effective immunoassay profiling analysis.

The Luminex System is a series of three instruments that flexible analyzer based on the principles of quantitative fluorescent microscopy or fluorescent flow cytometry that is designed to meet the needs of any size research laboratory. The multiplex system allows for the simultaneously measurement of up to 80 different analytes from a single microplate well, using very small sample volumes. The system delivers fast and cost-effective immunoassay profiling and gene expression analysis through the multiplex quantitative measurement and detection of protein, RNA, and DNA.

The Luminex System is the combination of three core xMAP technologies. The first is xMAP microspheres, a family of 100 fluorescently dyed 5.6 magnetic microspheres (beads) and 5.6 micron-sized polystyrene microspheres. Both bead types act as both the target identifier and the solid surface capture to build the assay. The second is a fluorescent imaging and flow cytometry-based instruments, the Luminex Magpix and LX200/FLEXMAP 3D analyzer, respectively, which integrates key xMAP detection components such as light emitting diodes (LEDs) and a CCD camera or lasers, optics, advanced fluidics and high-speed digital signal processors. The third component is the assays that are designed around the microspheres.


More recently Luminex introduced the MAGPIX system which is based on the principles of fluorescence imaging. Lasers and Photo Multiplying Tubes (PMTs) were replaced with Light Emitting Diodes (LEDs) and a CCD camera to deliver a cost effective, compact, and reliable multiplexing platform. The compact MAGPIX instrument is capable of simultaneously measuring and quantitating up to 50 analytes in a single microtiter well when used with magnetic micropsheres (beads) (described above). The MAGPIX instrument is ideal for low to medium-throughput labs for the quantitative analysis of proteins, RNA, and DNA in a variety of sample matrices.

LX200 and FLEXMAP 3D

The LX200 and FLEXMAP 3D reader combines two lasers, fluidics, and real-time digital signal processing to distinguish up to 80 different sets of color-coded magnetic microsphere beads, each bearing a different assay. The Luminex reader is an essential tool that performs the key functions of this multiplex technology:

Procartiflex technology fluidics


The reader detects individual beads by flow cytometry. The fluidics system of the reader aligns the beads into single file as they enter a stream of sheath fluid and then enter a flow cell. Once the beads are in single file within the flow cell, each bead is individually interrogated for bead color (analyte) and assay signal strength (PE fluorescence intensity).

Reader lasers


The reader uses a 532 nm green laser ("assay" laser) is used to excite the PE dye of the assay (streptavidin-PE). The 635 nm solid state laser (red "classify" laser) is used to excite the dyes inside the beads to determine their "color" or "region" and is also used for doublet discrimination by light scatter.

Reader detectors


The reader has four detectors, one for each of the optical paths shown in the figure below. Detectors are used to measure the fluorescence of the assay, to make bead determination (1-100) and the last to discriminate between single and aggregate beads.

Hand-Held magnetic plate washer for magnetic bead assays

Hand-Held magnetic plate washer for magnetic bead assays

We have developed a proprietary hand-held magnetic plate washer (Cat. No. EPX-55555-000, sold separately) to simplify the bead wash process.

xPONENT software

xPONENT software is a modular, flexible, software package for control of the MAGPIX, 200, and FLEXMAP 3D systems, offering:

  • Intuitive graphical user interface for simplified workflow
  • Automated startup, shutdown, and routine maintenance operations
  • Enhanced data analysis and report generation capabilities
  • 21 CFR Part 11 ready
  • Automation and LIS connectivity

xPONENT software benefits:

  • Modular and flexible—Designed for ease of use, xPONENT software allows novice, occasional, and advanced users set up and run assays in minimal amounts of time.
  • User customization—The default graphical user interface follows a typical assay workflow, and it can be customized to meet the needs of individual laboratories.
  • Powerful data analysis—Industry-standard curve fitting models for quantitative analysis, allelic ratios for genotyping, and qualitative algorithms for immunology assays in addition to data visualization tools.
  • xPONENT software support

If you require technical assistance with your xPONENT software for data acquisition and analysis, contact our Technical Support team or email

Invitrogen Luminex multiplex assays

ProcartaPlex Multiplex Immunoassays

ProcartaPlex multiplex immunoassays

ProcartaPlex multiplex immunoassays enable simultaneous detection of up to 65 protein targets from complex biological matrices.

QuantiGene Plex Gene Expression Assays

QuantiGene plex gene expression assays

QuantiGene Plex gene expression assays enable multiplexing of up to 80 RNA targets from a single lysate sample.

Biomarker quantitation assay guide

This 72-page guide provides detailed information about different tools for protein and RNA quantitation. Download this valuable technical resource that covers technologies useful for cancer and inflammation research, immunology, neurology and more. Learn more about how antibody pairs, ELISA kits, and multiplex kits for the Invitrogen Luminex platform may help advance your research.

Download the Biomarker quantitation assay guide

Biomarker quantitation assay guide cover


Access Luminex instruments and multiplex assays and a targeted collection of resources for multiplex applications: