Analytical applications of reactors containing immobilized enzymes.

The theory for analytical packed-enzyme reactors is discussed and it is shown that a 100% conversion efficiency gives many advantages. This concept has been applied to methods for substrate determinations of urea, amino acids, and glucose. Enzyme reactors have also been used in the effluent from a Chromatographic column to enhance selectivity and sensitivity for cholesterol. Enzyme reactors for the determination of inhibitors, e.g. mercury ions, should be designed differently. A low conversion efficiency gives high sensitivity and a linear response.