Study on Quality Standard of Processed Curcuma Longa Radix

Table 4

Precision, repeatability, stability, and recovery of 3 curcuminoids.

Compound	Precision	Repeatability	Stability	Recovery
	RSD (%)	RSD (%)	RSD (%)	Mean	RSD (%)
Curcumin	0.38%	1.50%	0.74%	96.26%	2.58%
Desmethoxycurumin	0.40%	1.12%	0.83%	94.43%	2.47%
Bisdesmethoxycurum	0.39%	1.24%	0.95%	95.86%	3.97%