Determination of Inorganic Elements in the Rhizome of Paris polyphylla Smith Var. chinensis (Franch.) Hara by Using Inductively Coupled Plasma Mass Spectrometry

Table 1

Microwave operating conditions for the digestion of PPC.

Step	T (°C)	Pressure (atm)	Power (W)	Holding time (min)
1	120	40	1600	10
2	150	40	1600	20
3	180	40	1600	20