Analysis of Chemical Constituents Changing in Physical Process and Nutritional Components of Malus halliana Koehne Tea

Table 1

Regression equations and linear ranges for three compounds.

Compound	Regressive equation		Linear range/μg
Phloridzin	= 1165813.0631 + 976247.0924	0.9996	0.9~112.5
Quercitrin	= 1306866.7475 + 58713.4808	0.9998	0.0972~12.15
3-Hydroxyphloridzin	= 654528.6618 + 41738.1201	0.9991	0.0932~11.65

Here Y is the peak area; X refers to injection amount (μg).