Studies On The Quality Of Chenopodium Ambrosioides L.

Chenopodium ambrosioides L. was in common use in our province. It can be used to treat fungous infections , to treat eczema, to kill parasites. But now have no method to control the quality of Chenopodium ambrosioides L.. We systematically research on the chemical compositions of Chenopodium ambrosioides L. Our research will help to establish the criterion of quality control for Chenopodium ambrosioides L..Part one: Pharmacognosial studies of Chenopodium ambrosioides L.The decscription of Chenopodium ambrosioides L. were recounted. The structure of the cross section of root, setm and leaf were described. The cross section of the root had 2-3 wheel concen tricrings which were arranged by the abnor-vascular bundle. The cross section of the stem had open collateral vascular bundle which arranged the ring. The morphological method and microscopic characteristics method could identify Chenopodium ambrosioides L.quickly and accurately.Part two: Studies on the flavonoids in Chenopodium ambrosioides L.HPLC-MS and TLC was used to analyze the flavonoids in Chenopodium ambrosioides L.. Compared with the standard samples, quercetin and kaempferol were identified. A determination method was established for quercetin and kaempferol by HPLC. The contents of quercetin and kaemprol in Chenopodium ambrosioides L. were about 0.25mg/g and 1.03mg/g. The method was reliable, accurate and can be used for quality control of Chenopodium ambrosioides L..Part three: Studies on the volatile oil from Chenopodium ambrosioides L.Our study was to analyze the chemical constituents of volatile oil from Chenopodium ambrosioides L.. The volatile oil was extracted by steam distilation. Twelve chemical compotions were seperated and identified by GC-MS. The major constitutes were found to be a-terpinene (34.15%), Bornylene (22.74%), Benzene,1-methyl-4-(1-methylethyl) (26.60 %) ,Ascaridole (4.59%) .GC fingerprints was used to analyze the volatile oil from Chenopodium ambrosioides...