// Definition
An analytical chemistry technique where a known standard compound is added ('spiked') to a sample to identify unknown peaks in a spectrum. By observing which peaks grow after the addition, analysts can confirm the identity of compounds in the original sample.
// From the Episode
Mark Scialdone described spiking analysis in episode 031 when discussing NMR testing of cannabis distillate. He explained that by adding authentic beta-caryophyllene to an NMR tube, 'when you see those peaks growing in then you could identify what peaks correspond to it.'