The phrase "assay cut" is correct and usable in written English.
It can be used in contexts related to scientific testing or analysis, particularly in fields like chemistry or mining.
Example: "The assay cut revealed significant concentrations of gold in the sample."
Alternatives: "test sample" or "analysis segment".
Assay cut point determination is described above.
The assay cut point was derived from the 95% upper confidence limit after removal of outliers.
The screening and confirmatory assay cut points were statistically determined based on the current industry white papers (Jani et al., 2015; Shankar et al., 2008).
Samples were classified as screened-positive if the average sample signal was greater than or equal to the calculated screening assay cut point.
The confirmatory assay cut point was derived from the 99th percentile of the log-transformed normalized RLU values from each plate.
The samples were deemed positive and specific if the percentage inhibition was greater than or equal to the statistically derived confirmatory assay cut point.
Confirmatory assay parameters that contribute to this disagreement include differences in antigen selection (full length LEDGF vs. major antigenic region), recombinant expression system used for antigen production (E. coli vs. Baculo virus system vs. mammalian cells), analytical sensitivity/specificity of the various assay platforms and the established assay cut-off.
Following the selection of each assay cut-off, assay sensitivity was evaluated using a total of 302 samples with sequence-detectable drug resistance mutations.
This calculation is termed the Assay Cut-off and is graphed as a horizontal line along the bar graph for simplicity of presentation and interpretation.
The avidity assay was performed as previously described [6], [9], except that an assay cut-off of 40% was used for recent infection.
Subjects with antibody response≥the assay cut-off were considered protected against Hib-disease, diphtheria, tetanus or hepatitis B. To cope with the multiplicity of study objectives, the pre-set criteria for meeting the study objectives were assessed sequentially.
