The safety of traditional Chinese medicine is affected by many factors

and the influence of exogenous harmful substances has been concerned and become a hot spot in recent years

especially heavy metals

pesticide residues and some other harmful substances. In order to explore the effects of non-soil and non-pesticide treatment on residues of these two harmful substances

the heavy metals and agricultural residues of Lilii Bulbus were detected

and the correlation of the data was analyzed. In this experiment

heavy metals and pesticide residues of Scrophulariae Radix were detected

and correlation analysis was conducted for their data. The mechanism of transport phase was interpreted with statistical moment similarity tool of total fingerprint by supramolecular chemistry theory. A large number of experimental data in this paper showed that heavy metals and pesticide contents in Lilii Bulbus basaltifolia had a positive correlation

which was closely related to supramolecular phenomena. Moreover

the similarity of fingerprints between Lilii Bulbus and Scrophulariae Radix suggested that Lilii Bulbus and Scrophulariae Radixa had a high selectivity in absorption of agricultural residues

which proved that the absorption of pesticides in Lilii Bulbus and Scrophulariae Radix from different habitats had the function of supramolecular imprinting template. It was considered that medicinal plant was a giant complex supramolecule with various levels of " imprinted template" . Heavy metals and agricultural residues were also involved in plant growth

forming an " imprinted template" for the formation of supramolecules between agricultural residues and heavy metals. After heavy metals and agricultural residues formed supramolecules

their liposolubility and permeability changed in varying degrees

and their transport in medicinal plants was promoted. Finally

the heavy metal supramolecules of pesticides were absorbed

distributed

aggregated and accumulated in plants. The purpose of the study was to reveal the mechanism of heavy metal and pesticide supramolecule transport

provide a new direction for the treatment of heavy metals and pesticide residues

and ensure the safety of traditional Chinese medicine.