London Calling 2023
  17th - 19th May
Native Barcoding Kit 24 V14

A versatile method of preparing barcoded sequencing libraries optimised for median raw read accuracy of Q20+ (99%+) and long read multiplexed samples.

This is an Early Access product

Product lead time: 1 week

This uses our latest Kit 14 chemistry

2Early Access
  • Access the latest products from Oxford Nanopore Technologies
  • Provide feedback into the innovation team as the product develops
  • Product Warranty may initially be limited to 1 month as it is so new
  • Product routinely iterates as new features and capabilities are added
  • Estimated lead time in store
  • Product subject to availability


This kit is recommended for users who:

  • Wish to multiplex up to 24 samples to reduce price per sample
  • Want to achieve median raw read accuracy of Q20+ (99%) and above
  • Want to obtain duplex data
  • Want to optimise their sequencing experiment for accuracy and output
  • Need a PCR-free method of multiplexing to preserve additional information such as base modifications
  • Require control over read length
  • Would like to utilise upstream processes such as size selection or whole genome amplification

This is an Early Access product
For more information about our Early Access programmes, please see this article on product release phases.

Please note that to use this kit, you will need to purchase additional 3rd party reagents: see the "3rd Party Materials" tab for more detail.

Barcoding or multiplexing is useful when the amount of data required per sample is less than the total amount of data that can be generated from a single flow cell: it allows a user to pool multiple samples and sequence them together, making more efficient use of the flow cell.

Multiplexing samples onto one flow cell can reduce the cost per sample for a user. Below are some worked examples. Please note, this is an example and pricing depends on the kit purchased.

No barcodes6 barcodes12 barcodes24 barcodes
Flow cell price$500$500$500$500
Library price$99$99$99$99
Barcodes price-$25$50$75
Price per sample$599$104$54$28

The Native Barcoding Kit 24 V14 features:

Preparation time140 minutes
Input requirement• 400-1000 ng per sample of gDNA
• 200 fmol (130 ng for 1 kb amplicons) per sample of amplicons
PCR RequiredNo
Kit chemistryKit 14 (V14)
Read lengthEqual to fragment length
Associated protocolsLigation Sequencing gDNA - Native barcoding kit 24 V14
Ligation Sequencing amplicons - Native barcoding kit 24 V14
Pack sizeSix reactions
StabilityShipped at 2–8°C

Long-term storage -20°C

The warranty for this Early Access product is 3 months from receipt by the customer

The Native Barcoding Kit 24 V14 is a standalone kit providing 24 unique barcodes to enable PCR-free multiplexing of dsDNA samples such as gDNA and amplicons.

The library preparation method is similar to the Ligation Sequencing Kit protocol; gDNA is repaired (note: DNA repair is skipped when using amplicon input) and dA-tailed using the NEBNext End Repair/dA-tailing module, and then a unique dT-tailed barcode adapter is ligated on the dA-tailed template. Barcoded samples are then pooled together. Each barcode adapter also has a cohesive end and this is used as a hook to ligate to the supplied sequencing adapter.

The kit is optimised to achieve modal sequencing accuracies of over 99% (Q20+) with high output on our latest nanopore: R10.4.1. Our flow cell priming and sequencing reagents have been reformulated to be compatible with this improved Kit 14 adapter and R10.4.1 nanopore.

Kit 14 also includes previous updates such as the higher capture rate of DNA to enable lower flow cell loading amounts, and fuel fix technology, allowing users to run longer experiments without the need for fuel addition during the run.

If your experiment requires long reads, it is recommended to start with full-length gDNA, and fragmentation/shearing is neither advised nor required. Note: If long reads are required, high molecular weight DNA should be used as input. To determine purity, we suggest using the Nanodrop to measure the A260/280 and A260/230 ratios and we recommend that the sample should meet the following criteria:

  • A260/280 = 1.8
  • A260/230 = 2.0-2.2

The Native Barcoding Kit 24 V14 is compatible with upstream processes such as whole genome amplification (for applications where under 1 ng of sample is available) and size selection (for enrichment of specified fragment lengths, for example, using our Short Fragment Eliminator Kit (EXP-SFE001)). When size selecting, we recommend increasing the amount of input used, as size selection can be a wasteful process.

Deconvolution of barcoded sequencing data is supported by MinKNOW, Guppy and EPI2ME which classify the barcode sequence and sort reads into corresponding folders.

Further considerations:

Starting with lower amounts of input material, or impure samples can affect library preparation efficiency and lower sequencing output. PCR can be used to generate more input material in cases where sample amount is limiting.

Shipping and logistics:

Flow cells and kits are shipped together in an environmentally friendly temperature-controlled shipping box.

Products are shipped to customers within the USA and EU Monday to Thursday. Shipments to Canada, Norway, Korea and Japan are expedited Monday to Wednesday; with Australia and New Zealand leaving our warehouses on a Friday. Shipments to the rest of the world are made on Mondays to allow the full working week for packages to arrive.

The delivery charges are calculated when a quote is raised or during checkout. Once an order is made, the delivery ID and delivery information can be tracked in the Store.


The library preparation method is similar to the Ligation Sequencing Kit protocol; gDNA is FFPE repaired (note: DNA repair is skipped when using amplicon input) and end-prepped/dA-tailed using the NEBNext End Repair/dA-tailing module.  A unique dT-tailed barcode adapter is then ligated on the dA-tailed template. Barcoded samples are then pooled together. Each barcode adapter also has a cohesive end which is used as a hook to ligate to the supplied sequencing adapter.

Native barcoding workflow1


- Ligation sequencing gDNA - native barcoding kit 24 V14
- Ligation sequencing amplicon - native barcoding kit 24 V14

To access the protocol, you will need to register for a Nanopore Community account.

What's in the box

The Native Barcoding Kit 24 V14 contains 24 unique barcodes and sufficient reagents for 6 reactions:


NameAcronymCap colourNo. of vialsFill volume per vial (µl)
Native BarcodesNB01-24Clear24 (one per barcode)20
DNA Control SampleDCSYellow235
Native AdapterNAGreen140
Sequencing BufferSBRed1700
Library BeadsLIBPink1600
Library SolutionLISWhite cap, pink label1600
Elution BufferEBBlack1500
AMPure XP BeadsAXPAmber41,200
Long Fragment BufferLFBOrange11,800
Short Fragment BufferSFBClear11,800
Flow Cell FlushFCFBlue61,170
Flow Cell TetherFCTPurple1200

Note: This Product Contains AMPure XP Reagent Manufactured by Beckman Coulter, Inc. and can be stored at -20°C with the kit without detriment to reagent stability.

3rd party materials


  • NEB Blunt/TA Ligase Master Mix (M0367)
  • NEBNext® Quick Ligation Reaction Buffer (NEB B6058)
  • NEBNext® Companion Module for Oxford Nanopore Technologies® Ligation Sequencing (cat # E7180S)
  • Alternatively to the NEBNext® Companion Module and the NEBNext® Quick Ligation Reaction Buffer, you can use the three NEBNext® products below:
  • NEBNext FFPE Repair Mix (M6630)
  • NEBNext Ultra II End repair/dA-tailing Module (E7546)
  • NEBNext Quick Ligation Module (E6056)
  • 1.5 ml Eppendorf DNA LoBind tubes
  • 0.2 ml thin-walled PCR tubes
  • Nuclease-free water (e.g. ThermoFisher, cat # AM9937)
  • Freshly prepared 80% ethanol in nuclease-free water
  • Qubit™ Assay Tubes (ThermoFisher Q32856)
  • Qubit dsDNA HS Assay Kit (ThermoFisher Q32851)
  • (Optional) Bovine Serum Albumin (BSA) (50 mg/ml) (e.g Invitrogen™ UltraPure™ BSA 50 mg/ml, cat# AM2616)


  • Hula mixer (gentle rotator mixer)
  • Microfuge
  • Magnetic rack
  • Vortex mixer
  • Thermal cycler
  • Multichannel pipette
  • P1000 pipette and tips
  • P200 pipette and tips
  • P100 pipette and tips
  • P20 pipette and tips
  • P10 pipette and tips
  • P2 pipette and tips
  • Ice bucket with ice
  • Timer
  • Qubit fluorometer (or equivalent for QC check)

Optional equipment

  • Agilent Bioanalyzer (or equivalent)
  • Eppendorf 5424 centrifuge (or equivalent)


The Native Barcoding Kit 24 V14 can be used together with:


  • Native Barcoding Auxiliary Kit V14 (EXP-NBA114)
  • Flow Cell Wash Kit (EXP-WSH004)
  • Flow Cell Priming Kit V14 (EXP-FLP004)
  • Sequencing Auxiliary Vials V14 (EXP-AUX003)

Flow cells


  • FLO-MIN114
  • FLO-PRO114M


  • MinION Mk1B
  • MinION Mk1C
  • GridION
  • PromethION