Craig Counter-Current apparatus, from the Courtauld Institute of Biochemistry, c. 1960.

This Craig Countercurrent machine came from the analytical chemistry department of the Courtauld Institute of Biochemistry of the Middlesex Hospital Medical School in around the 1960s, to assist biochemical medical research and clinical diagnosis.

The machine was designed to automate an analytical chemistry technique called 'counter current distribution' designed to separate components within a liquid mixture. Automated techniques were pioneered by the American biochemist Lyman C. Craig working at the Rockefeller Institute for Medical Research around 1950. The machine consists of many glass cell separators, that are rocked back and forth until liquid mixtures have separated. Quick fit models allowed for standardised glassware to be fitted and replaced.

This Craig Countercurrent machine came from the analytical chemistry department of the Courtauld Institute of Biochemistry of the Middlesex Hospital Medical School in around the 1960s, to assist biochemical medical research and clinical diagnosis.

The machine was designed to automate an analytical chemistry technique called 'counter current distribution' designed to separate components within a liquid mixture. Automated techniques were pioneered by the American biochemist Lyman C. Craig working at the Rockefeller Institute for Medical Research around 1950. The machine consists of many glass cell separators, that are rocked back and forth until liquid mixtures have separated. Quick fit models allowed for standardised glassware to be fitted and replaced.

This Craig Countercurrent machine came from the analytical chemistry department of the Courtauld Institute of Biochemistry of the Middlesex Hospital Medical School in around the 1960s, to assist biochemical medical research and clinical diagnosis.

The machine was designed to automate an analytical chemistry technique called 'counter current distribution' designed to separate components within a liquid mixture. Automated techniques were pioneered by the American biochemist Lyman C. Craig working at the Rockefeller Institute for Medical Research around 1950. The machine consists of many glass cell separators, that are rocked back and forth until liquid mixtures have separated. Quick fit models allowed for standardised glassware to be fitted and replaced.