A Practical Method for Determination of Nine Nucleosides in Tricholoma matsutake by UPLC/MS and Quantitative Analysis of Multicomponents Using Single Marker Method

Table 2

The results of the comparative study on extraction methods (μg/g).

Extraction methods	A	C	G	I	U	dA	dC	dG	dU
Ultrasonic	44.8 ± 0.5	151.7 ± 1.2	185.9 ± 0.2	37.0 ± 0.8	108.7 ± 0.6	6.6 ± 0.2	13.6 ± 0.4	9.6 ± 0.1	4.1 ± 0.1
Boiling water	45.1 ± 0.4	152.5 ± 1.7	188.1 ± 1.0	36.7 ± 0.2	108.6 ± 0.9	6.5 ± 0.2	13.4 ± 0.2	9.5 ± 0.2	4.2 ± 0.0