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Table 6 Statistical analysis of CBC, total CBD, total CBG, and total THC in flower versus composite samples

From: Regulatory sampling of industrial hemp plant samples (Cannabis sativa L.) using UPLC-MS/MS method for detection and quantification of twelve cannabinoids

Cannabinoid Sample type Mean difference Intraclass correlation coefficient
Flower (% w/w) Composite (% w/w)
CBC 0.27 ± 0.19 0.25 ± 0.19 0.02 0.79
Total CBD 12.3 ± 2.51 11.0 ± 1.98 1.32* 0.32
Total CBG 0.28 ± 0.11 0.25 ± 0.11 0.03 0.55
Total THC 0.69 ± 0.16 0.60 ± 0.13 0.09* 0.29
  1. Values represent the mean ± standard deviation. A two-tailed paired t test was performed to determine if there was a significant mean difference between the composite and flower only samples. *indicates a significant difference at p ≤ 0.05. Intraclass correlation coefficient was also calculated for each group to determine the degree to which values from the same group agree. This coefficient is interpreted as follows: <0.5 poor agreement, 0.5–0.75 moderate agreement, 0.75–0.9 good agreement, and >0.9 excellent agreement
  2. CBC Cannabichromene, CBD Cannabidiol, CBG Cannabigerol, THC Tetrahydrocannabinol