In analytical chemistry, the detection limit, lower limit of detection, also termed LOD for limit of detection or analytical sensitivity (not to be confused with statistical sensitivity), is the lowest quantity of a substance that can … See more

Most analytical instruments produce a signal even when a blank (matrix without analyte) is analyzed. This signal is referred to as the noise level. The instrument detection limit (IDL) is the analyte concentration that is required to produce a signal … See more

The limit of quantification (LoQ, or LOQ) is the lowest value of a signal (or concentration, activity, response...) that can be quantified … See more

• Altshuler B, Pasternack B (1963-03-01). "Statistical measures of the lower limit of detection of a radioactivity counter". Health Physics. 9 … See more

Often there is more to the analytical method than just performing a reaction or submitting the analyte to direct analysis. Many analytical … See more

The issue of limit of detection, or limit of quantification, is encountered in all scientific disciplines. This explains the variety of definitions and the diversity of juridiction specific … See more

• Background noise – Sound other than the sound being monitored (primary sound)
• Background radiation – Measure of ionizing radiation in … See more