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Twist cfDNA LP and Hyb Mix Kit
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Product Configuration
  • What are the kit configurations of the cfDNA Library Preparation Kit?
  • What are the shipping and storage conditions of the cfDNA Library Preparation Kit?
  • What is the shelf life of the cfDNA Library Preparation Kit?
  • Should I worry about freeze/thaw cycles with the cfDNA Library Prep Kit?
  • What is not included with the cfDNA Library Preparation Kit?
Sample Input
  • How much DNA input can I use with the cfDNA Library Preparation Kit?
  • How do I determine how much cfDNA to use?
  • Do you recommend any QC assays to perform on the input cfDNA prior to library preparation?
  • Can I increase the volume of cfDNA input if my DNA concentration is very low?
  • Can I use sample DNA other than cfDNA with this kit?
  • Can I only use 1 - 20 ng with the DNA derived from FFPE samples?
Library Preparation
  • What are the advantages of the cfDNA Library Preparation kit as compared to other kits?
  • How long does it take to construct a library using the cfDNA Library Preparation Kit?
  • What kind of sequencing libraries does the cfDNA Library Preparation Kit support?
  • Does the cfDNA Library Preparation Kit support Unique Molecular Identifiers (UMIs)?​
  • What if I do not need the UMIs with the cfDNA Library Prep kit? Can I use UDI adapters?
  • Can I adjust the SPRI ratio after ligation from the recommended 0.9X?
  • Why do I see larger peaks in my cfDNA library amplification?
Hybridization
  • What plexity does the cfDNA Target Enrichment Kits support?
  • How do I determine library mass into target capture?
  • How did you derive this 80x multiplier library input into target capture and do I need to follow it?
  • How much mass can I add into a singleplex target enrichment
  • What will happen if more than 12.8 μg input mass is added into capture?
  • How do I set up 8-plex Target Enrichment with libraries made from different sample mass inputs?
  • What is the recommendation if I have libraries made from sample mass inputs >20 ng?
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FAQ Home

How do I determine how much cfDNA to use?

We recommend referencing our datasheet to determine optimal cfDNA mass input:

https://www.twistbioscience.com/resources/technical-document/cfdna-library-prep-kit-datasheet


The optimal amount of cfDNA input should be determined by weighing variables such as desired
sensitivity at target VAF, duplexing requirements, panel content, and available sequencing
resources.

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