Below are the results of measuring a typical hemp sample, followed by an image of stacked 3 consecutive measurements. There are two observations from this measurement:
1. The retention times are consistent and repeatable, giving the confidence in the ability to correctly identify the correct cannabinoids. Retention times relative standard deviation (RSD) range from 0.27% to 0.69%.
2. The measured concentrations are very repeatable as indicated by the height/area of each peak. The calculated relative standard deviation (RSD) in this case ranges from 1.19% to 1.70%, while for cannabinoids with very low concentrations manifested as very small peaks (in this sample CBN, d9-THC, and d9-THCA) the calculated RSD ranges from 4.62% to 5.63%. In case of need to further refine the latter 3 compounds and improve both accuracy and RSD, the sample would simply be less diluted resulting in higher peaks for these 3 compounds.