Sulphonamide adducts of three Co(II) carbonic anhydrases were investigated by e.p.r. (electron paramagnetic resonance) at helium temperatures. The highly anisotropic9GHz spectra exhibited only three distinct features, with g values between 6.3 and 1.5. Such spectra arise from an electronic state with effective spin S' = i, indicating that the highspin (S= 2) ground level is split into two spin ...

The antimicrobial activity of silver sulphadiazine has been determined agonist 409 strains from 12 different genera. MICs were usually in the range 16-64 micrograms/ml. Multi-resistant species, such as methicillin-resistant Staphylococcus aureus and Acinetobacter spp., were uniformly sensitive. MICs always exceeded the reported aqueous solubility of silver sulphadiazine. No resistant strains we...

allergens in maltworkers with extrinsic allergic alveolitis than in the rest of the maltworker population, and (c) atopic maltworkers had a significantly lower rate of skin sensitivity to occupational allergens than non-atopic workers. The first observation is not surprising, since extrinsic allergic alveolitis is not due to a type 1 allergic reaction. The second is of interest, since it sugges...

Poly(p-N-chlorostyrenesulphonamide) synthesized via direct chlorination of poly[(p-styrene) sulphonamide], can be used for selective chlorination of aromatic compounds. Aromatic rings of the anisole, p-xylene, ethylbenzene and toluene are chlorinated with good yields. The polymer can be recovery, rechlorinated and reused several times.