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Protein Express Assay Reagent Kit

Supports reagent use protocols for small or large batch sizes. Contains enough reagent for 4 primes to run large batch sizes up to 384 and 8 primes to run batch sizes of 48 or fewer.

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The LabChip® GXII Touch Capillary Electrophoresis System uses a single sipper microfluidic chip to rapidly characterize protein samples from 24-, 96- or 384-well plates. The microfluidics chip technology automatically stains distains, electrophoretically separates and analyzes the protein samples. After the LabChip instrument optics detect the laser-induced fluorescent signal, easy to use system software automatically analyzes the data and provides the user with relative protein concentration, molecular size, and percent purity using ladder and marker calibration standards.

Digital data results are immediately available for review or reporting in virtual gel, electropherogram graph or table summary form.

Choose Protein Express Assay for samples ranging in size from 14 to 200 kDa.


  • Sizing Range: 14 kDa – 200 kDa
  • Sizing Accuracy: ± 20%
  • Sizing Resolution: ± 10% difference in molecular weight
  • Linear Dynamic Range: 5.0 – 2000 µg/mL
  • Sensitivity: 5 µg/mL
  • Chip Primes per Reagent Kit: 4
  • Chip Sample Lifetime: 400
  • Sample Analysis Time: 38 – 41 sec


Product Brand Name LabChip GXII
Research Areas Translational Research, Drug Discovery & Manufacturing, Food & Agriculture
Sample Type Protein
Shipping Condition Blue Ice Soft
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Application Note

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Protein Express Quick Guide

A Protein Express Assay Quick Guide for LabChip GXII Touch and LabChip GXII which includes: Preparing Gel-Dye and Protein Express Chip; Preparing Protein Samples, Ladder and Buffer; Chip Cleaning and Storage; and Assay Specifications.

PDF 162 KB
Protein Express User Guide

The Protocols defined in this User Guide apply to all of the LabChip instrument products running the Protein Express Assay. The LabChip GXII Touch is used for general visual reference in most examples in this guide.


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