ddPCR

Absolute nucleic acid quantification with the Bio-Rad QX200 Droplet Digital PCR system.

Bio-Rad QX200

Digital droplet PCR (ddPCR) is a robust and highly sensitive nucleic acid quantification technique. This method enables absolute and direct quantification of gene expression, detection of rare mutations or SNPs, and copy number variation (CNV) analysis. We use the Bio-Rad QX200 Droplet Digital PCR system.

ddPCR partitioning and quantification diagram
ddPCR droplet fluorescence scatter plot

How ddPCR Works

This technology is based on partitioning the sample into approximately 20,000 nanoliter-scale droplets. Within each droplet, an end-point PCR reaction occurs on a single copy of the DNA template. The emitted fluorescence signal is read droplet by droplet (single or dual channel) to classify droplets as positive or negative based on a defined threshold. Target concentration is then inferred using a Poisson statistical model with 95% confidence intervals.

Available ddPCR Applications

Relative Expression Quantification

Quantify a target across different sample conditions with quadruplex reference gene normalization.

Absolute Quantification

Direct absolute quantification of different targets in a sample condition.

Mutation & SNP Detection

Detect mutations or SNPs against wild-type with high sensitivity.

Custom Applications

Other applications welcome for development and deployment at the platform.

Pricing

Per 8 Reactions

UdeS
$70.00
Canadian Academic
$85.40
  • For industrials please contact us for an accurate quote.
  • Not including cost for sample preparation and PCR primer and hydrolysis probe design if applicable.
  • Prices subject to change.

Ready to Start Your Project?

Contact us today to discuss how our ddPCR services can support your research.