QSARs based on fuzzy adaptive least-squares analysis for the aquatic toxicity of organic chemicals

Autor: Yasuo Matsushita, Ikuo Moriguchi, Qian Liu, Shuichi Hirono
Rok vydání: 1992
Předmět:
Zdroj: Environmental Toxicology and Chemistry. 11:953-959
ISSN: 1552-8618
0730-7268
Popis: A quantitative structure-activity relationship (QSAR) model for the prediction of aquatic toxicity of organic chemicals was formulated. Toxicity data of 394 compounds with a wide variety of structures were collected from a data base and other literature. The molecular structures were quantitatively described, using substructural and hydrophobic parameters for the QSAR analysis. Fuzzy adaptive least-squares (FALS), a pattern recognition method recently developed at our laboratory, was used in the QSAR study. A discriminant function with 37 variables was obtained, representing satisfactorily the correlation of structure with aquatic toxicity ratings of compounds. The results were highly significant both in recognition and in leave-one-out prediction.
Databáze: OpenAIRE