Understanding 96-Well Plate Designs and Applications
Chrom Tech’s 96-well plates are widely used in high-throughput chromatography, LC-MS sample preparation, and automated analytical workflows. All Chrom Tech plates conform to the ANSI/SLAS standard footprint, ensuring compatibility with robotic liquid handlers, plate readers, and automated laboratory systems.
Whether using 2 mL deep well plates for high-volume sample processing or shallow well plates for screening and storage, standardized dimensions allow laboratories to integrate well plates seamlessly into automated workflows.
Variations in 96-Well Plate Geometry
Although all 96-well plates share the same external footprint, several design features influence their performance in different laboratory workflows:
- Well geometry (round or square)
- Plate height and working volume
- Internal well diameter
- Underside bracing for magnetic platform compatibility
- Construction material such as polypropylene, polystyrene, or glass
- Rimmed or rimless designs for sealing films
- Bottom shape: flat, U, V, or pyramid
The bottom geometry plays an important role in liquid recovery, particle concentration, and assay performance.
Common 96-Well Plate Bottom Types
Flat Bottom Plates
Flat-bottom wells provide a large, uniform surface area and are commonly used for optical assays, fluorescence measurements, luminescence detection, and cell culture applications. Their flat surface allows accurate optical readings and uniform cell growth.
U-Bottom Plates
U-bottom wells have a rounded shape that encourages liquids and particles to collect toward the center of the well. This geometry improves mixing efficiency and sample concentration, making it useful in biological assays and compound screening workflows.
V-Bottom Plates
V-bottom wells are designed to funnel liquids into a narrow point, allowing efficient liquid recovery and particle collection. This design is particularly useful for automated purification systems and magnetic bead workflows.
Pyramid Bottom Plates
Pyramid-shaped wells concentrate liquid samples into a defined corner point, maximizing sample recovery during automated liquid handling. These designs are often used in high-throughput analytical workflows where precise liquid transfer is critical.
Deep Well Plate Configurations
Chrom Tech’s deep round “common wall” plates are manufactured from virgin polypropylene to minimize extractables and contamination. With a 2.075 mL maximum capacity and 1.85 mL working volume, they provide high sample capacity while maintaining a compact 45 mm height.
This design maximizes usable volume while maintaining full compatibility with ANSI/SLAS automation platforms.
Low-Profile and Shallow Well Plates
Chrom Tech also offers low-profile round plates with reduced height for efficient storage and stacking. These plates are manufactured from low-extractable polypropylene to ensure chemical purity for sensitive analytical workflows.
Shallow well plates are commonly used for drug discovery, screening assays, genomics research, and compound storage where smaller working volumes are required.
Automation and Instrument Compatibility
Chrom Tech plates are engineered for compatibility with automated purification platforms including Thermo Scientific™ KingFisher™ systems. Available consumables include deep well plates, elution plates, and magnetic comb tips designed for efficient magnetic bead recovery.
- Compatible with KingFisher Flex, Duo Prime, Apex, and Presto systems
- Suitable for DNA, RNA, and protein purification workflows
- Designed for magnetic bead separation and high recovery rates
Summary
96-well plates are available in a variety of bottom shapes and configurations to support different laboratory workflows. Selecting the correct plate design—flat, U-bottom, V-bottom, or pyramid—can improve liquid recovery, mixing efficiency, and compatibility with automated analytical systems.
Chrom Tech offers a wide range of 96-well microplates designed for high-throughput chromatography, LC-MS sample preparation, and life science research applications.