Qubit™ Assay Tubes
Qubit™ Assay Tubes
Invitrogen™

Qubit™ Assay Tubes

Qubit assay tubes are 500 μL thin-walled polypropylene tubes for use with the Qubit Fluorometer. 500 tubes per package.Note: ForRead more
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Catalog NumberQuantity
Q32856500 tubes
Catalog number Q32856
Price (CNY)
646.00
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Ends: 31-Dec-2025
1,311.00
Save 665.00 (51%)
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Quantity:
500 tubes
Recurring order eligible. Learn more »
Delivery information
Standard Products - 1-2 business days for Beijing, Shanghai, Guangzhou, Shenzhen and provincial capitals, 2-3 business days for 2nd-tier cities, and 4 business days for 3rd-tier cities and remote areas.
Air Freight Restricted Products - 2-4 business days for Beijing, Shanghai, Guangzhou, Shenzhen and provincial capitals, 3-5 business days for 2nd-tier cities, and 6-10 business days for 3rd-tier cities and remote areas.
Supply Center: Delivered from the Supply Center closest to you.
Price (CNY)
646.00
線上優惠
Ends: 31-Dec-2025
1,311.00
Save 665.00 (51%)
Each
Add to cart
Ask our AI about this Product
Qubit assay tubes are 500 μL thin-walled polypropylene tubes for use with the Qubit Fluorometer. 500 tubes per package.

Note: For optimal performance, users should conduct experiments using tubes from the same lot.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Product LineQubit™
Quantity500 tubes
Shipping ConditionRoom Temperature
For Use With (Equipment)Qubit Fluorometer
TypeAssay Tube
Unit SizeEach
Contents & Storage
Store at room temperature.
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Frequently asked questions (FAQs)

The accuracy and sensitivity of the Qubit quantitation assays are the same as that of a microplate reader. This was a requirement during product development. The detection limits for each Qubit kit can be found on the corresponding product manual, which can be found by searching our website by keyword or catalog number.

Find additional tips, troubleshooting help, and resources within our Nucleic Acid Quantification Support Center.

No. The Qubit DNA and RNA kits only quantify the amount of either DNA or RNA in the sample. The Qubit fluorometer cannot take absorbance readings to provide a A260/A280 ratio or detect protein in nucleic acid samples. This can be done with the NanoDrop instrument. If your sample contains protein or other contaminants that can affect the assay, it should be further purified.

If your sample may contain both DNA and RNA, one may use either (or both) the DNA and RNA Qubit kits and compare with samples treated with either RNase or DNase to get an accurate determination of DNA or RNA, respectively.

All Quant-iT and Qubit kits are compatible with all fluorometers and microplate readers that have the appropriate light sources and filters. You won't have access to the algorithm in the Qubit fluorometer for generating the standard curve provided by the instrument, instead, you must make a few dilutions of the highest standard DNA or RNA (Standard #2) in the Qubit kits to generate a standard curve with multiple data points.

No, we do not recommend this. Some of the dyes in the original Quant-iT kits (those NOT listed as “for use with the Qubit fluorometer”) are not compatible with the Qubit Fluorometer. In addition, the new Quant-iT kits (labeled as “for use with the Qubit Fluorometer”) have standards formulated to be compatible with the Qubit fluorometer internal algorithms for the respective assays. The Qubit Fluorometer-compatible kits are also less expensive per assay if you are processing fewer than 20 samples at a time.

We have changed the manufacturer of the Qubit Assay Tubes and the new tubes are slightly longer and more opaque than the original tubes. The new tubes have been tested in each of the Qubit instruments, with all of the Qubit assays, and using the fluorescent dyes, fluorescein and Alexa Fluor 647, to validate that there are no changes to the data quality when compared with the original Qubit tubes. The new tubes met or exceeded the current specifications for both the core and extended ranges for each of the Qubit assays, and were able to achieve the same limit of detection (LOD) as the original Qubit tubes for each of the Qubit assays and the fluorescent dyes tested.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

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