Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • lijing2019
    Junior Member
    • May 2019
    • 5

    #1

    discrepancy between qubit and bioanalyzer results

    When I do the QC for my bead cleaned-up pre-amplified cDNA (Smartseq2) using AATI fragment analyzer and bioanalyzer, the concentration was very low (0.01ng/uL) and almost no peaks. But when I measured the same samples using Qubit, I got about 0.1ng/uL. Why are these methods giving different concentrations? Thanks!
  • cmbetts
    Senior Member
    • Jun 2012
    • 120

    #2
    The FA/BA is probably a more accurate measurement (although I trust qubit more for concentrations >1ng/ul). It's easy to get background readings of 0.1-0.3ng/ul by qubit. Did you run a negative control for comparison?

    Comment

    • lijing2019
      Junior Member
      • May 2019
      • 5

      #3
      Originally posted by cmbetts View Post
      The FA/BA is probably a more accurate measurement (although I trust qubit more for concentrations >1ng/ul). It's easy to get background readings of 0.1-0.3ng/ul by qubit. Did you run a negative control for comparison?
      OK, I see. I will include a negative control to see how it goes. Thank you for your reply.

      Comment

      Latest Articles

      Collapse

      • SEQadmin2
        16S/ITS Profiling vs. Shotgun Metagenomics: What Changes in Your Workflow?
        by SEQadmin2





        NGS has revolutionized clinical microbiology by offering new ways to identify and surveil pathogens without prior knowledge of the target. One popular approach is 16S rRNA and ITS amplicon sequencing, which targets specific microbial markers. But studies are increasingly incorporating shotgun metagenomics, a technique that sequences all DNA from a sample without targeting specific microbial markers. This approach allows more detailed taxonomic classification,...
        10-30-2026, 06:46 AM
      • SEQadmin2
        Multiomic Liquid Biopsy: What DNA/RNA Panels Reveal That DNA Alone Can’t
        by SEQadmin2



        Tumors contain complex mixtures of cell populations that evolve in response to treatment and host-specific factors. Tissue biopsies provide only static snapshots of a tumor’s state. But what if we could follow that evolution over time using a minimally invasive technique?

        Liquid biopsies can detect tumor-derived material circulating in the bloodstream, providing a way to study treatment response, detect emerging resistance, and discover new biomarkers. Circulating
        ...
        10-14-2026, 09:55 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, Today, 07:59 AM
      0 responses
      13 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 11-05-2026, 09:25 AM
      0 responses
      32 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 11-03-2026, 11:54 AM
      0 responses
      45 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-28-2026, 09:57 AM
      0 responses
      169 views
      0 reactions
      Last Post SEQadmin2  
      Working...