Different types of controls

positive and negative

In order to unambiguously verify a test result, a positive control and a negative control are required. A solution containing the antibody or antigen under investigation, usually in a defined quantity, is used as a positive control.  Negative controls are solutions without antibody or antigen

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How to use controls

For optimal comparison, controls must be diluted in the same way as the sample. It is important that controls are pipetted with the same method on the same gel or plate as the samples to create the same conditions. Inlab controls are recommended for constant observation of test performance in your own laboratory.

Why using controls?

Controls are used firstly to normalize or standardize any molecular biology method and secondly to validate the assay and calculate the test results.

Top Selling Antigens & Controls

Neurofilament 200 kDa, bovine, 250 µg
Cat. No. 62010
Quantity: 250 µg
  • Purified bovine neurofilament 200 kDa
  • Protein standard

Variants from €175.00*
Positive western blot control: anti-Keratin K18 antibody
Cat. No. 64007
  • Whole cell lysate from MCF7 human breast adenocarcinoma cell line
  • Validated and tested western blot control for: anti-Keratin K18 mouse monoclonal antibody, clone Ks18.04, Cat. No. 61028 and Cat. No. 65028

Positive western blot control: anti-Vimentin antibody
Cat. No. 64001
  • Whole cell lysate from SV80 human lung fibroblast (SV40-transformed) cell line
  • Validated and tested western blot control for: anti-Vimentin mouse monoclonal antibody, VIM 3B4, Cat. No. 61013

Vimentin, human recombinant, 100 µg
Cat. No. 62215
Quantity: 100 µg
  • Recombinant human vimentin
  • Protein standard

Keratin K18, human recombinant, 100 µg
Cat. No. 62217
Quantity: 100 µg
  • Recombinant human keratin K18 (formerly also designated cytokeratin 18)
  • Protein standard


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