Abstract The heterogeneous catalyst Mackinawite (FeS) was applied to activate periodate (IO4?) degrade endocrine disruptors bisphenol AF (BPAF). This study investigated the influence of FeS dosage, BPAF concentration, initial pH value and inorganic ions on degradation by FeS/IO4? system. results showed that effectively degraded acidic exhibited higher efficiency in compared with alkaline neutra...

Rebers, P. A. (Rutgers, The State University, New Brunswick, N. J.), E. Hurwitz, M. Heidelberger, and S. Estrada-Parra. Immunochemistry of the pneumococcal types II, V, and VI. III. Tests with derivatives of the specific polysaccharides of types II and VI. J. Bacteriol. 83:335-342. 1962.-The type-specific pneumococcal polysaccharides, S II and S VI, were oxidized with periodate, and the capacit...

Bovine erythrocytes, which are not concanavalin A (ConA)-agglutinable, can be rendered so by attaching alpha-D-mannose residues to their outer membrane. The sugars are incorporated by mildly oxidizing the cells with periodate followed by coupling the liberated aldehyde groups with an alpha-thiomannosyl containing hydrazide (I). The rate and extent of ConA-mediated aggregation of the modified ce...

We previously reported that thymidine kinase (TK) activity in a spontaneously TK-deficient (TK-) murine tumor cell line (called L61-M) could be partially restored following brief treatment of the cells in vitro with the potent DNA-hypomethylating agent 5-azacytidine. We now show here that similar results may be obtained by exposing cells in vitro to periodate-oxidized adenosine, a potent inacti...

Porcine mucosal heparin was fragmented into low-molecular-weight (LMW) heparin by treatment of periodate-oxidized heparin with sodium hydroxide, followed by reduction with sodium borohydride and acid hydrolysis. Gradient polyacrylamide gel electrophoresis analysis showed a mixture of heparin fragments with an average size of eight disaccharide units. 1D 1H NMR showed two-thirds of the N-acetyl ...

Variable temperature EPR spectra of KNilOß • 0.5 H2O have established that the paramagnetic behavior of this compound (~ 1 BM) is due to the presence of nickel(III) atoms which have occupied some nickel(IV) sites in the crystal lattices. Change of spectral pattern from rhombic (77 K) to isotropic (300 K) is due to a dynamic Jahn-Teller effect. Electrical conductivity measurement has shown it to...

In title salt, C(38)H(34)P(2) (2+)·2IO(4) (-), the P atoms of the dication and the I atoms of the periodate anions are each in a slightly distorted tetra-hedral environment. In the dication, the two -P(C(6)H(5))(3) groups adopt a gauche conformation with respect to each other. In the crystal, several C-H⋯O hydrogen bonds between the cations and anions lead to a two-dimensional arrangement along...

a catalytic spectrophotometric method for determination of ultra-trace quantities of manganese(ii) id described. the method is based on the catalytic effect of manganese(ii) on the oxidation reaction of ferroin by potassium periodate in acidic media. the reaction is monitored spectrophotometrically at 510 nm by a slope method and mn(ii) is determinable in the range of 1-1000ngml-1. the limit of...