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Microplate Readers measure optical density across 96 and 48 well plates, converting colour change in ELISA and colorimetric assays into quantitative absorbance values. An 8-channel optical fiber system reads a full 96 well plate in about 5 seconds, while filters at 405, 450, 492 and 630 nm cover common substrates such as TMB, pNPP and OPD. A 0.000 to 4.000 OD reading range with 0.001 resolution supports accurate standard curves. Dual-wavelength measurement subtracts plate scratches, fingerprints and background artefacts from each reading. Typical uses include infectious disease serology, hormone and tumor marker assays, drug screening and academic research.
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Selection Guide for Microplate Reader
When selecting Microplate Reader, customers should consider essential specifications that match their laboratory applications. Most models are compatible with 96-well plates, with some also supporting 48-well and 384-well formats, providing flexibility for varying throughput demands. The wavelength range is a key factor; options like 340–750 nm, 400–630 nm, and 400–800 nm allow for a broad spectrum of assays, including ELISA and enzyme kinetics. Standard wavelengths such as 405, 450, 492, and 630 nm are commonly used for accurate absorbance measurements in colorimetric assays. Selecting a reader with support for standard microplate types and multiple plate formats enhances usability and adaptability. Additionally, the availability of reliable technical support and maintenance services ensures long-term performance and user confidence. Evaluating these factors helps customers choose a microplate reader that fits their testing requirements and ensures dependable results.
Frequently Asked Questions
1 What is a Microplate Reader?
A Microplate Reader is an apparatus designed to detect biological, chemical, or physical events within the wells of a microplate.
2 How does Microplate Reader work?
It works by using optical detection methods such as absorbance, fluorescence, or luminescence to measure reactions in each well of a microplate.
3 Why is Microplate Reader important in drug discovery?
It is important in drug discovery because it enables high-throughput screening, allowing researchers to analyze thousands of samples quickly and accurately.
4 Can Microplate Reader be used for kinetic assays?
It is used for kinetic assays, allowing researchers to monitor changes in absorbance or fluorescence over time.
5 How is Microplate Reader used in ELISA assays?
It is used in ELISA assays to measure absorbance in microplate wells, quantifying the presence of specific proteins or antigens based on colorimetric changes.
6 Can Microplate Reader be used for cytotoxicity assays?
It can be used for cytotoxicity assays by detecting changes in absorbance or fluorescence that reflect cell viability or membrane integrity.
7 Can Microplate Reader be used for bacterial growth studies?
It can be used for bacterial growth studies by continuously measuring optical density, allowing researchers to monitor growth curves over time.
8 Can Microplate Reader be used for hormone detection?
It is commonly used for hormone detection in ELISA- or luminescence-based immunoassays, enabling accurate quantification of hormone levels in biological samples.
9 Can Microplate Reader be used in food safety testing?
It is used in food safety testing to detect contaminants, toxins, or pathogens via immunoassays or enzymatic reactions in microplate formats.
10 How is Microplate Reader used in environmental monitoring?
It is used in environmental monitoring for detecting pollutants, heavy metals, or microbial content using biochemical assays in water and soil samples.