Professor Yu Ruqin (1935- ), a member of the Chinese Academy of Sciences and a specialist in analytical chemistry.

He was born in the city of Changsha, Hunan Province and graduated from Yali Middle School in his youth. He went to study in the Department of Chemistry, Institute of Mines, Leningrad of the former Russia (now known as St. Petersburg University) in 1953 and graduated in 1959. He began to work in Chang Chun Institute of Applied Chemistry, Chinese Academy of Sciences after returning from abroad.

Professor Yu was transferred to Hunan University in 1962, and he was a professor of chemistry, College of Chemistry and Chemical Engineering, and successively president of Hunan University. In 1984, he joined the Communist Party of China, acting as Director of Chinese Chemical Society. He is editor-in-chief of Chemical Sensor.

Professor Yu's research interests mainly cover organic analytic reagents and chemometrics. The projects "Research on Fluoride Ion Selective Electrode" and "A Study on Application of Organic Reagents in Electrochemistry and Catalytic Kinetic" he presided over won the prize of National Science conference in 1978 and the National Award for Natural Sciences in 1987 respectively.

His main publications include Information-Theoretical Fundamentals of Modern Analytical Chemistry and Introduction to Chemometrics. He was elected Member of Division of Chemistry, Chinese Academy of Sciences in 1991 and renamed as the academician in 1994.