Sentence examples for by a negative control from inspiring English sources

For each antibody, the background was subtracted (determined by a negative control consisting of a secondary antibody alone).

The specificity of Annexin-V binding to vascular SMCs was verified by a negative control in the presence of 5 mM EDTA.

The antibody staining was accompanied by a negative control in which slides were incubated with a matching blocking peptide (Dako Corporation) to the primary antibody.

Each cDNA synthesis was accompanied by a negative control reaction lacking reverse transcriptase to verify the success of the QuantiTect DNA removal step.

One cell population was transfected by a negative control, siRluc, a small interfering RNA (siRNA) targeting the Renilla firefly luciferase gene that is not present in the HeLa genome.

All single cell samples that were catapulted from a particular tissue section were subsequently accompanied in all procedures by a negative control sample that consisted of a 100 μm2 piece of empty membrane catapulted from the same tissue section.

Background changes in fluorescence were accounted for by subtracting a negative control (lacking Dam) when appropriate.

The cut-off value for IgG positivity was determined by using a negative control population of volunteers sampled in Marseille, France in 2008.

Difference plots were generated by selecting a negative control, converting the melting profile to a horizontal line and normalizing the melting profiles of the other samples against the test sample.

Absence of pathogenic Y. enterocolitica in the matrices was confirmed by including a negative control sample in each test.

For the 10 individual ticks that were tested by PCR, a negative control (5 µL of water) and positive control (5 µL of DNA extracted from an A. cajennense tick experimentally infected with R. parkeri) were included.