Fast, accurate, sensitive, and specific quantification of DNA, RNA, and protein

Qubit Fluorometers provide fast, accurate answers to the often-heard question, “Do I have enough DNA (or RNA or protein) for my assay?” Quantification of these analytes is important for downstream applications like next generation sequencing (NGS), PCR, transfection, western blotting, and immunoassays.


Qubit Fluorometers detect fluorescent dyes specifically bound to the target molecule. With optimized Qubit Assays, they can distinguish dsDNA from ssDNA or intact from degraded RNA, even in extremely small amounts or in the presence of contaminants. A simple, intuitive interface and onboard calculators streamline the process. Results appear within seconds and can be exported to a computer or downstream device.


Sensitive and specific

Qubit Fluorometers quickly quantify dsDNA, ssDNA, RNA, or protein even in extremely small amounts.

Choice of two compact models

The Qubit 4 model (right) can quickly and accurately quantify DNA, RNA, or protein in one sample at a time, while the Qubit Flex model (left) can quantify up to eight samples at a time for higher throughput.

Optimized Qubit Assays

Designed to run on Qubit Fluorometers, Qubit Assays use target-selective fluorescent dyes that bind to DNA, RNA, or protein for quantitation. An RNA integrity and quality assessment assay is also available.

SmartStart interactive demo

Every Qubit Flex Fluorometer includes access to a self-paced online tutorial and reference experience designed to help you get up and running quickly.

Convenient onboard calculators

The Reagent Calculator helps determine how much reagent and buffer to use in your working solution. The Qubit Flex model also includes Assay Range, Molarity, and Normalization Calculators.

For Research Use Only. Not for use in diagnostic procedures.