From Research Laboratories, to Diet and Health Applications, Wine Industry and Sport Performance


e-BQC is a portable device, patent pending, based on electrochemistry, designed to measure, in a direct way, the antioxidant capacity of liquid samples.

The result is obtained in less than a minute and with only one drop of sample.

By means of disposable e-BQCstrips, is able to differentiate between different types of antioxidants, from the weakest ones to the strongest ones.

Standards and Buffers

Antioxidant Standards and Buffers for eBQC lab device calibration curve.

e-BQC Disposable Strips

Available in 4 sizes according to your necessities: 50, 250, 500 and 1000 Units.


The eBQC Lab device works and has been tested in the following:

  • Biological samples: Plasma, Blood, Saliva, Urine, Cell cultures, Cell extracts, Tissue homogenates
  • Aqueous soluble samples: Some Food and Beverages. In general, samples (liquid or solid) which can be dissolve in a aqueous solution, like one of our buffers https://bioquochem.com/reagents-and-accesories-ebqc/

Ask for the compatibility of your sample!

Do you still have doubts choosing the right device and technology for your research? Let us know and our scientific and customer department will advise you on the best option

Plant and vegetable extracts are also rich sources of antioxidants. Check the eBQC Natural Ingredients for its use with these samples, and discover all the possibilities in the field.

e-BQC New Technology, the first device able to difference between two types of antioxidants, fast and slow.


e-BQC device is based on the most powerful analytical technique: electrochemistry. The device measures the resistance of the sample to be oxidized, which is translated to antioxidant capacity. In electrochemistry, an antioxidant is a substance that is oxidized at low potentials, and so protects other biomolecules that oxidize at higher potentials: lipids, proteins and DNA.

With only a drop of sample and in less than a minute, a quick and reliable measurement of the sample’s antioxidant capacity, allowing to differentiate between fast and slow acting antioxidants (Q1 and Q2). This differentiation (Q1 and Q2) is very valuable,  allowing us to weigh the measurements and obtain a more complete assessment of the total antioxidant capacity.


e-BQC LAB is based on the eBQC-electrochemical technology, which gives it the following key feautures:

  • Without radical initiators: It measures the Total Antioxidant Capacity, not only the result agains one radical initiator as the traditional assay kits.
  • Total Antioxidant Capacity: represents a measure of the global antioxidant status of the sample.
  • Electrochemical Measure: the most powerful analytical technique, electrochemistry, is used to obtain the results, in an accurate and quick way.
  • Easy-results conversion: results can be easily transform into Antioxidant Equivalents of Vit C, Galic Acid or Trolox (CEAC, GAE or TEAC).
  • Sample native conditions: it does not modify the native conditions of the sample, as you can use the buffer that best match your sample requirements.


How does the e-BQC measure?

It oxidizes the sample by applying a variable potential. A variable voltage is applied to the strip to “activate” the antioxidants, so they cede the electrons. Electrons are released and detected as a current at the electrode.

What do the results mean?

The results are given as the total charge (uC) of the electrons that are able to be donated to a free radical to neutralize it in the sample.

Research Laboratories:

Traditional methods of TAC measurement are laboratory tests. These are based on the generation of a free radical type and the ability of the molecules present in the sample to eliminate these radicals. These assays are hardly comparable among them.


eBQC Lab is a very versatile tool due to its ability to measure in almost every liquid sample, and can be used in many research/industrial fields

  • Aging: study the causes/implications of aging and healthy aging
  • Cancer: study the causes/implications of oxidative stress in cancer development and prognosis
  • Nutrition: Study the antioxidant properties of different diets and the oxidative effects of some foods on health
  • Exercise: study the causes/implications of oxidative stress in training performance and injury risk
  • Skin: study the antioxidant capacity of skincare products and the effects on skin treatments
  • Pharmaceutical drugs and supplements: study its effects and implications on health

How does e-BQC lab work?

It is a small device that works with low cost fungible e-BQCstrips.

e-BQC is very easy to use: put the strip in the slot, dispense the drop of sample and click the button to measure.

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