Microplate Readers and Reader Accessories

Microplate readers are a type of spectrophotometer designed specifically for analyzing multiple samples in multi-well plates.

The readers detect light signals that result from biological, chemical, biochemical, or physical reactions. The signals are produced by, converted by, or transmitted through the samples and are measured by a detector. The detectors are usually photomultiplier tubes (PMT), which convert the released photons into electricity. The current is quantified by the reader’s software to produce the numerical result.

In some cases, samples are first excited by exposure to light of specific wavelengths. Filters or monochromators are used to select or restrict the wavelengths needed for emission or detection.

Single-mode microplate readers commonly measure absorbance, fluorescence, or luminescence. Multi-mode plate readers may measure absorbance, fluorescence, and luminescence with options for fluorescence polarization (FP). They may also include lasers for time-resolved fluorescence (TRF), TR-FRET, Amplified Luminescent Proximity Homogeneous Assays (ALPHA), and cell imaging.

Features may include:

Monochromator- or filter-based wavelength selection
Visible only or UV/Vis spectrum, fluorescence, and luminescence
Multiple photomultiplier tubes (PMTs) for simultaneous assays
Temperature and CO₂/O₂controls
Modular design for adding functionality

Microplate readers are used for high-throughput screening (HTS), biomarker assays, nucleic acid and protein quantification, kinetics, ELISA assays, homogeneous time resolved fluorescence (HTRF) for measuring cytokines, bioluminescence resonance energy transfer (BRET), and other techniques.

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811 – 825 of 1,089 results

811

Revvity Health Sciences Inc HTRF Human & Mouse Phospho-RAB10 (Thr73) Detection Kit, Control Lysate

HTRF Human & Mouse Phospho-RAB10 (Thr73) Detection Kit, Control Lysate

Pricing & Availability

812

Revvity Health Sciences Inc HTRF Human Total Estrogen Receptor Î± Detection Kit, Detection Kit, Control Lysate

HTRF Human Total Estrogen Receptor Î± Detection Kit, Detection Kit, Control Lysate

Pricing & Availability

813

Revvity Health Sciences Inc HTRF Total Myd88 Detection Kit, 10,000 Assay Points

HTRF Total Myd88 Detection Kit, 10,000 Assay Points

Pricing & Availability

814

Molecular Devices Fluorescence Excitation Filter, 370 nm, Time-Resolved, Single Unit

Molecular Devices 370 nm time-resolved fluorescence filter provides excitation at 370 nm for time-resolved fluorescence assays. It is supplied as a single replacement optical filter for compatible fluorescence instruments.

Provides excitation centered at 370 nm.
Designed for time-resolved fluorescence measurements.
Supplied as a single replacement optical filter.
Intended for use in compatible fluorescence detection instruments.
Helps improve excitation specificity for time-resolved assays.

Pricing & Availability

815

Molecular Devices Photometric Filter, 340 nm, FilterMax F3/F5 Compatible

The Molecular Devices AD 340 photometric filter (P/N 6590-0019) is a single-wavelength optical filter centered at 340 nm, supplied as a slide-mounted accessory for multimode microplate readers that accept six-position filter slides. It is intended for absorbance and photometric assays requiring stable, narrowband wavelength selection and reproducible microplate measurements.

Provides narrowband 340 nm wavelength selection for absorbance assays.
Slide-mounted thin-film optical filter construction.
Designed for use with six-position filter slide modules in multimode readers.
Filter slot dimensions compatible with standard slide limits: excitation 12.2-12.7 mm, emission 17.7-18.0 mm, thickness 5.0-9.0 mm.
Enables reproducible photometric measurements across microplate assays.

Pricing & Availability

816

Molecular Devices Photometric Absorbance Filter, 470 nm, 8 nm Bandwidth

The AD 340 photometric filter centered at 470 nm is an absorbance accessory designed for narrowband photometric measurements in microplate assays. It delivers wavelength-specific absorbance detection for filter-based workflows and is intended for compatible multimode microplate readers.

Absorbance filter for photometric measurements.
Center wavelength 470 nm.
Bandwidth approximately 8 nm.
Designed for use with F3 and F5 multimode microplate readers.
Suitable for filter-based absorbance assays in microplates.

Pricing & Availability

817

Molecular Devices SpectraTest Validation Plate, FL1, Calibration Certified, Reader Compatible

The SpectraTest FL1 Fluorescence Validation Plate is a calibrated reference tool used to validate the optical performance of FL1-channel fluorescence-capable microplate readers. It verifies sensitivity, wavelength accuracy, RFU linearity, PMT matching, and other fluorescence performance parameters and ships with a certificate of calibration and protective storage.

Validates fluorescence sensitivity, wavelength accuracy, PMT matching, and RFU linearity.
Includes calibrated fluorescent and non-fluorescent reference strips and didymium glass.
Supplied with a certificate of calibration and protective storage sleeve.
Compatible with a wide range of microplate readers for FL1-channel testing.
Recommended annual recertification to maintain traceable calibration.

Pricing & Availability

818

Molecular Devices Fluorescence Polarization Filters, 535 nm, Polarized

Molecular Devices fluorescence polarization filter set designed for fluorescence polarization (FP) assays on compatible SpectraMax and FlexStation multi-mode microplate readers. The set contains polarized filters in vertical and horizontal orientations centered at 535 nm with a 25 nm bandwidth to support accurate FP measurements.