Please note that at certain times of the year Bis-Tris protein gel boxes may arrive inside insulated coolers containing ambient temperature gel packs.

NuPAGE™ 12%, Bis-Tris, 1.0 mm, Mini Protein Gel, 12-well

Catalog number: NP0342PK2

NuPAGE™ 12%, Bis-Tris, 1.0 mm, Mini Protein Gel, 12-well

Catalog number: NP0342PK2
Catalog Number
Unit Size
2 gels (1 box)
Price (USD)
Your Price:
Catalog NumberUnit SizePrice (USD)AvailabilityQuantity
NP0342PK22 gels (1 box)
Your Price:
Product Overview
Citations & References
Additional Information
Invitrogen NuPAGE Bis-Tris protein gels are precast polyacrylamide gels designed to give optimal separation of a wide range of proteins under denaturing conditions. Unlike traditional Tris-glycine gels, NuPAGE Bis-Tris gels have a neutral pH environment that minimizes protein modifications. Use NuPAGE Bis-Tris gels for preparing proteins for sequencing, mass spectrometry, and any other techniques where protein integrity is crucial. Also, use NuPAGE gels for optimal results during day-to-day use.

Features of NuPAGE Bis-Tris gels:
• Better protein integrity—optimized sample preparation process preserves your proteins
• Wide ranges of molecular weight separation—select the right gel and running buffer to get the optimal separation of your proteins
• Faster run times—get separation of your proteins in as little as 35 minutes
• Longer shelf life—NuPAGE Bis-Tris gels can be stored for at least 12 months at room temperature

Learn more about all of our NuPAGE Bis-Tris gels >
View migration charts ›

Choose the right NuPAGE Bis-Tris gel for your protein separation
Obtain optimal separation of your proteins by choosing the right combination of gel and running buffer. NuPAGE Bis-Tris protein gels come in four polyacrylamide concentrations: 8%, 10%, 12%, and a 4–12% gradient. Gels come in two sizes: mini (8 cm x 8 cm) or midi (8.7 cm x 13.3 cm) and either 1.0 mm (mini and midi gels) or 1.5 mm (mini gel format only) in thickness. NuPAGE Bis-Tris gels also come in multiple well formats.

NuPAGE Bis-Tris gels are formulated for denaturing gel electrophoresis applications. For optimal sample preparation, use the NuPAGE LDS Sample Buffer and NuPAGE Sample Reducing Agent. Use NuPAGE Antioxidant in the running buffer to maintain the reduced state of the proteins during the run and to allow maximum band sharpness. The gels can be run using NuPAGE MES SDS Running Buffer to better resolve small proteins or NuPAGE MOPS SDS Running Buffer to resolve medium- to large-size proteins.

We also provide NuPAGE Tris-Acetate gels for separating larger proteins. For classic Laemmli-based Tris-glycine electrophoresis, we provide Novex Tris-Glycine gels.

For transfer of proteins to a membrane, we recommend using NuPAGE Transfer Buffer. Rapid semi-dry transfer can be done using the Pierce Power Blotter or rapid dry transfer using the iBlot 2 Gel Transfer Device. Alternatively, traditional wet transfer can be performed using the XCell II Blot Module or the Mini Blot Module.

Related links
Overview of 1D Protein Electrophoresis
Comparison of NuPAGE Tris-Bis vs. traditional Tris-glycine gels
For Research Use Only. Not for use in diagnostic procedures.


NuPAGE™ Novex™ 12% Bis-Tris Protein Gels, 2 Gels, 0.039 in. Thickness, 8 x 8cm Gel Size, Gel, 20μL Sample Loading Volume, For Use with XCell SureLock™ Mini, For Protein Gel Electrophoresis, 12 Months Shelf Life, 4 to 25°C Storage
For Use With (Application)
Protein Gel Electrophoresis
Length (Metric)
8 cm
Length (Metric) Gel
8 cm
Storage Requirements
4°C to 25°C
Thickness (English)
0.039 in.
Width (Metric)
8 cm
Width (Metric) Gel
8 cm
Gel Size
Separation Range
3.5 to 80 kd
Gel Percentage
Gel Type
Separation Type
Gel Thickness
1.0 mm
For Use With (Equipment)
Mini Gel Tank
Separation of
No Adapters
Mode of Separation
Molecular Weight
Shipping Condition
Room Temperature
Well Design
1D Well
1.0 mm
Product Line
Novex™, NuPAGE™
Product Type Specs
Homogeneous Page
Shelf Life
12 Months
Recommended Applications
Sample Loading Volume
up to 20 µL

Contents & Storage

One box contains 2 gels. Store at 4–25°C. Do not freeze. Shelf life is 12 months.


Frequently asked questions (FAQs)

Citations & References