[ANSA analysis. II. Aminonaphthalenesulfonamides--detecting groups for polysubstrate analysis of proteases].

The properties and synthetic methods of aminonaphthalenesulfonamides (ANSA) used as detectable groups of protease substrates are described. A list of chemical and physical properties of seventeen 5.1-ANSA with simple substituents is presented.

[Working conditions and health status of workers engaged in the production of zinc compounds].

It was established that industrial shops engaged in zinc compounds' processing were characterized by considerable temperature shifts, relative humidity and air motion changes. In drying and packing shops, concentrations of the final product dusts were established at 0.8-2 mg/m3.

[The health status of workers engaged in the production of cobalt salts].

The professional noxae for workers engaged in production of cobalt acetate, chloride, nitrate and sulfate is dust of the final product in the form of aerosol disintegration. The main professional pathology is manifested in hypertrophic defensive processes in the upper respiratory tract, in contact dermatitis, cardiac disorders of different severity grades. Clinico-biochemical investigations revealed a clear increase of the content of urea, rest nitrogen, glucose, cholesterol and electrolytes (sodium and potassium) in the blood.