Product Info
Kelabscience PCR Tubes are designed to meet the thermal, optical, and workflow requirements of modern PCR and qPCR systems. Using precision injection-molding and thin-wall technology, the tubes ensure fast temperature equilibration, uniform amplification curves, and reproducible Ct values across replicates.
To accommodate different laboratory workflows, the PCR tube family includes:
1. Individual PCR Tubes（0.1 mL & 0.2 mL）
Ideal for low-volume workflows, small batch reactions, and instrument compatibility testing.
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Volumes: 0.1 mL (low-profile) and 0.2 mL
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Colors: Clear (PCR), White (qPCR to enhance signal reflection)
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Cap Types: Flat or semi-domed
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Use Cases: Routine PCR, cloning, small qPCR batches, teaching labs
2. 8-Strip PCR Tubes（with Attached Caps）
Suitable for mid-throughput and diagnostic workflows.
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Strip Design: Easily separable into individual tubes
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Volumes: 0.1 mL / 0.2 mL
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Cap Styles: Flat caps for qPCR; domed caps for standard PCR
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Compatibility: Standard 0.2 mL blocks and 96-well V-bottom cyclers
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Benefits: Reduced pipetting variability, stable heating across replicates
3. 12-Strip PCR Tubes（Flexible Strip Layout）
Designed for semi-automated workflows or higher sample throughput.
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Uniform Heating: Consistent performance across larger sets
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Cap Options: Flat or semi-domed
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Typical Use: Screening assays, diagnostic labs, teaching labs
Materials & Construction
Kelabscience PCR tubes are molded from high-clarity polypropylene (PP) with tight dimensional tolerances to optimize reproducibility:
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Thin-wall engineering promotes fast heat transfer and minimal temperature lag in fast-cycling protocols.
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Smooth internal surfaces reduce adsorption and enhance enzyme performance.
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Optical-grade caps (flat) ensure low autofluorescence and consistent fluorescence transmission in qPCR.
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Even sealing pressure across the cap–rim interface helps prevent evaporation during high-temperature or long-hold steps.
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Hinge flexibility and molding precision ensure a secure closure while maintaining ease of handling.
All tubes are DNase/RNase-free, human DNA-free, and produced in environmentally controlled facilities.
Performance Considerations
Thermal Uniformity
Fast and predictable temperature transitions are achieved through thin-wall design, ensuring reliable amplification across all tube positions, even in fast-cycling or narrow-annealing-window assays.
Cap Integrity & Evaporation Control
Flat and semi-domed caps are designed to seal evenly and maintain reaction volume. This helps reduce baseline drift and variability across technical replicates in qPCR.
Optical Performance for qPCR
White tubes and flat caps offer improved signal-to-noise ratios, enabling more accurate fluorescence measurement, especially at low nucleic acid concentrations.
Tube Geometry & Workflow Fit
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Low-profile (0.1 mL) tubes minimize headspace and accelerate thermal response.
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Standard (0.2 mL) tubes maximize compatibility with older or universal cyclers.
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Strip formats support high-throughput or synchronized multi-sample workflows.
Packaging Information
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Packaging varies by tube format and volume. Detailed packaging configurations are included in the Specification section.
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Customization: OEM color, cap type, and packaging options available upon request.
For plate-based PCR or high-throughput workflows, see our PCR Plates.
For sealing options, explore our PCR/qPCR Optical Sealing Films.
