Research Article

Rapid Characterization of Tanshinone Extract Powder by Near Infrared Spectroscopy

Table 3

The contents of cryptotanshinone and tanshinone IIA of tanshinone extract powders.

TypeIndex Contents/mg·g−1Relative standard deviation

Homemade Cryptotanshinone1.0
(20 batches)Tanshinone IIA1.1
Commercial Cryptotanshinone1.0
(30 batches)Tanshinone IIA2.3