Skip to main content
Biology LibreTexts

2.4: Appendix IV- Using the Qubit

  • Page ID
    67603
    • Nathan Reyna, Ruth Plymale, & Kristen Johnson
    • Ouachita Babtist University & University of New Hampshire
    \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    How to Use the Qubit Fluorometer

     

    Watch the YouTube video regarding questions for the Qubit Fluorometer.

    (https://www.youtube.com/watch?v=z5g6pAFAWEc)

    The Qubit allows you to measure the concentration of DNA, RNA, and protein in a couple of microliters of the solution. It is best to use 1.5\(\mu L\) to 2\(\mu L\) for accurate measurements. Some models have the ability to measure fluorescently labeled molecules.

    Procedure:

    1. Calibration:
      1. On the “Home Screen,” choose the type of assay for which you want to run the standards. Standards Screen is automatically displayed.
      2. The screen will prompt you to choose between reading new standards and using the previous calibration. Press “Yes” to read new standards.
      3.  
      4. Insert Standard #2, and press “Read.” Ensure that you are using the Standard #2 appropriate for the assay you are performing.
      5. Calibration is complete. The new standards graph with data points for standards connected by a line appears on the screen.
    2. Reading Samples:
      1. Choose “Sample” to go on the Sample Screen
      2. Insert a sample into the Sample Chamber and press “Read.” The measurement takes approximately 3 seconds. Upon the completion of the measurement, the result is displayed on the screen. The number displayed is the concentration of the nucleic acid in the assay tube.
      3. To read the next sample, remove the sample from the Sample Chamber, insert the next sample, and press “Read Next Sample.”
      4. Repeat until all samples are read.

    This page titled 2.4: Appendix IV- Using the Qubit is shared under a not declared license and was authored, remixed, and/or curated by Nathan Reyna, Ruth Plymale, & Kristen Johnson.

    • Was this article helpful?