Invitrogen Qubit fluorometric quantitation comprises the easy-to-use Invitrogen Qubit 4 Fluorometer and sensitive, specific Invitrogen Qubit quantitation assays to measure RNA quality and quantity, quantitate RNA, ssDNA, dsDNA and protein for applications that require sensitive, specific and accurate measurement.

Designed for your precious samples and high-value applications

The Invitrogen Qubit 4 Fluorometer is designed to quickly and specifically quantitate DNA or RNA. In addition, with the newest version of the Qubit Fluorometer, you can now easily measure RNA integrity and quality. It is easier than ever to find out for sure if you have enough DNA or RNA for your experiment.

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Qubit 4 Fluorometer

Get accurate data in a few seconds with touch screen–controlled operation and your choice of assays.

Qubit RNA IQ

Measure RNA integrity and quality in one easy method.

Qubit Assays

Find reagent kits for DNA, RNA, and protein quantification, even for dilute samples.

Technical resources

Download the latest software and MyQubit applications, read FAQs, citations, and application notes

Keeping pace with your research

The Qubit quantification platform continues to evolve right along with you, offering:

  • Qubit assay dyes bind selectively to DNA, RNA, or protein, making it more sensitive than UV absorbance
  • Uses as little as 1 μL of sample, even with very dilute samples
  • Fast, reliable detection of degraded RNA with the new Invitrogen Qubit RNA IQ Assay
  • New integrated reagent calculator to quickly generate working solution calculations
Product Initial sample concentration Quantitation range Quantity Cat. No.
DNA quantitation kits
Qubit ssDNA Assay Kit 50 pg/μL to 200 ng/μL 1–200 ng 100 assays Q10212
Qubit dsDNA BR Assay Kit 100 pg/μL to 1,000 ng/μL 2–1,000 ng 100 assays Q32850
500 assays Q32853
Qubit dsDNA HS Assay Kit 10 pg/μL to 100 ng/μL 0.2–100 ng 100 assays Q32851
500 assays Q32854
Qubit 1X dsDNA HS Assay Kit 10 pg/μL to 100 ng/μL 0.2–100 ng 100 assays Q33230
500 assays Q33231
RNA integrity and quality kit
Qubit RNA IQ Assay Kit* NA NA 75 assays Q33221
275 assays Q33222
RNA quantitation kits
Qubit RNA BR Assay Kit 1 ng/μL to 1 μg/μL 20–1,000 ng 100 assays Q10210
500 assays Q10211
Qubit RNA HS Assay Kit 250 pg/μL to 100 ng/μL 5–100 ng 100 assays Q32852
500 assays Q32855
Qubit RNA XR Assay Kit 1 ng/μL to 8 μg/μL 20 ng–8 μg 100 assays Q33223
500 assays Q33224
Qubit microRNA Assay Kit 50 ng/mL to 100 μg/mL 1–1,000 ng 100 assays Q32880
500 assays Q32881
Protein quantitation kit
Qubit Protein Assay Kit 12.5 μg/mL to 5 mg/mL 0.25–5 μg 100 assays Q33211
500 assays Q33212
Instrument and accessories
Qubit 4 Fluorometer 1 instrument Q33226
Qubit 4 RNA IQ Starter Kit 1 kit Q33229
Qubit 4 Quantitation Starter Kit 1 kit Q33227
Qubit 4 NGS Starter Kit 1 kit Q33228
Qubit Assay Tubes 500 tubes Q32856

* Note: The Qubit RNA IQ Assay for the detection of degraded RNA can only be run on the Qubit 4 Fluorometer and cannot be performed on the original Qubit, Qubit 2.0, or Qubit 3.0 Fluorometers.


Additional resources

Nucleic Acid Purification and Analysis Support Center
Find tips, troubleshooting help, and resources for your nucleic acid purification & analysis applications.