Thermo Scientific™ Pierce™ BCA Protein Assay Kits

The Pierce BCA Protein Assay Kit is a high-precision, detergent-compatible protein assay for determination of protein concentration. Pierce BCA reagents provide accurate determination of protein concentration with most sample types encountered in protein research.

Thermo Scientific™ Pierce™ FlexMix™ Calibration Solution

Thermo Scientific™ Pierce™ FlexMix™ Calibration Solution is a mixture of 16 highly pure, ionizable components designed for both positive and negative ionization calibration using Orbitrap Tribrid Series 3.1 Instrument Control Software.

Thermo Scientific™ 1-Step™ TMB ELISA Substrate Solutions

Thermo Scientific™ Pierce TMB ELISA Substrates detect horseradish peroxidase (HRP) activity, yielding a blue color (Amax = 370 nm and 652 nm) that changes to yellow (Amax = 450 nm) upon addition of a sulfuric or phosphoric acid stop solution.

Thermo Scientific™ Pierce™ LTQ Velos ESI Positive Ion Calibration Solution

Calibrate LTQ Velos, LTQ Orbitrap and other mass spectrometers using a mixture of highly purified ionizable molecules designed for positive mode calibration.

Thermo Scientific™ Micro BCA™ Protein Assay Kit

Special 3-component version of our popular BCA Reagents to measure total protein concentration of dilute protein solutions (0.5 to 20 micrograms/mL).

Thermo Scientific™ NeutrAvidin Protein

Thermo Scientific™ 8M Guanidine-HCl Solution

Ready-to-use, 8M solution of guanidinium hydrochloride (GdnCl, GuHCl), CAS 50-01-1; dilute and pH-adjust to any concentration for protein biology methods.

Thermo Scientific™ Pierce™ Negative Ion Calibration Solution

Calibrate LTQ mass spectrometer instruments using a mixture of highly purified ionizable molecules designed for negative mode calibration.

Thermo Scientific™ Pierce™ BCA Protein Assay Reagent A

Estimate visually, or measure with a standard spectrophotometer or plate reader at 562 nm.

Invitrogen™ Qubit™ Protein and Protein Broad Range (BR) Assay Kits

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Achieve sensitive detection of protein, and low protein-to-protein variation, with the Qubit Protein and Protein BR Assay Kits for fluorescence-based protein quantitation assays.

Thermo Scientific™ Bond-Breaker™ TCEP Solution, Neutral pH

Efficiently reduce protein disulfide bonds with this stable, odorless, 0.5M solution of TCEP reducing agent that is ideal for making reducing SDS-PAGE sample buffers.

Thermo Scientific™ Pierce™ BCA Protein Assay Reagent B

Green-to-blue (A562nm), two-component, precise, detergent-compatible assay reagent to measure total protein concentration vs. protein standard.

Thermo Scientific™ Pierce™ Triple Quadrupole Calibration Solution, extended mass range

Obtain both positive and negative ionization calibration of Thermo Scientific™ Triple Stage Quadrupole instruments using the Thermo Scientific™ Pierce™ Triple Quadrupole Calibration Solution, Extended Mass Range, which is a mixture of 14 highly pure, ionizable components (mass range: 69 m/z to 2800m/z).

Thermo Scientific™ Pierce™ EDC, No-Weigh™ Format

Immobilize or conjugate proteins using 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (CAS 25952-53-8), a water-soluble, carboxyl-to-amine crosslinker.

Thermo Scientific™ Pierce™ TCEP-HCl, No-Weigh™ Format

Reduce protein and peptide disulfide bonds using this thiol-free, pure, crystalline tris (2-carboxyethyl) phosphine hydrochloride, TCEP (CAS 5961-85-3).