The 24 h normal developing zebrafish embryos were used to evaluate the acute toxicity and the compounds of respective fractions were analyzed by UFLC-Q-TOF-MS simultaneously. Nine concentration groups with respective concentration and a blank control group were designed for each fraction to investigate their effect on survival rates of zebrafish embryos 96 h after drug administration,and calculate the median lethal concentration( LC_(50)) of different fractions to zebrafish embryos. The results showed that ...