The binding of T-1824 (Evans blue) with plasma has been extensively studied in the past by Allen and Orahovats (1) by means of the cellophane sorption method. Although this approach yielded excellent results, a simpler and more direct method seemed desirable. The basis for this new method is furnished by the observation, made in 1939,’ that the free T-1824 gives rise to a distinct polarographic...

This study optimises the degradation of a cocktail of the dyes methyl orange and bromothymol blue by atmospheric air plasma. Response surface methodology (RSM) was employed to investigate the efficacy of the plasma process parameters on degradation efficiency. A Box-Behnken design (BBD) was employed to optimise the degradation of dyes by air plasma discharge. A second order polynomial equation ...

A substrate-free, large-scale, free-standing and two-side oriented single crystal rutile TiO(2) nanorod array film with a thickness of over ten micrometers, self-assembled via a facile hydrothermal reaction of titanium powder in a mixture solution of H(2)O(2) and HCl, exhibits high activity for the photocatalytic degradation of methyl orange.

A novel Cu1.8Se/Cu₃Se₂ composite photocatalyst was prepared by the simple precipitation method. This composite possesses a wide photoabsorption until the range of near-infrared light, and exhibits significantly enhanced photocatalytic activity for methyl orange degradation under visible and near-infrared light irradiation compared with bare Cu1.8Se and Cu₃Se₂. The mechanism of this outstanding ...

and develop comparable regulatory programs for their state or (b) require intrastate clinical laboratories providing toxicological services to participate in the toxicology proficiency program now being separately developed by the National Center for Disease Control or the College of American Pathologists. The failure to provide adequate safeguards by mandatory drug-abuse proficiency testing op...

A small regional survey of direct spectrophotometric methods and a larger Australian and New Zealand survey of paediatric bilirubin analyses are described. The overall performance of both groups was unsatisfactory with an unacceptable high interlaboratory variation. This interlaboratory variation was reduced significantly by the use of a spectrophotometric method with a common standard of methy...

Fractionations of serum proteins using dye-binding methods have become popular because such methods are simple and can be adapted easily to automated systems of analysis, and the results of analysis performed on normal serums correlate well with results obtained by other methods. However, the good correlations do not necessarily apply when dealing with abnormal serums. Analysis of a selected gr...

Kinetics of anaerobic biodecolourisation (methanogenic environment) of four azo dyes (Acid Orange 6, Acid Orange 7, Methyl Orange and Methyl Red) was investigated with regard to their electrochemical properties as well as under variation of dye and sludge concentrations, pH and temperature. Cyclic voltammetry revealed a correlation between the potential of irreversible reduction peak of the dye...

The title compound, [Na(3)(C(14)H(14)N(3)O(3)S)(3)(C(4)H(8)O(2))(3)](n), is a polynuclear complex which includes, in the monomeric unit, three units of Na(I)-4'-dimethyl-amino-azobenzene-4-sulfonate [known as methyl orange (MO)] and three molecules of dioxane (C(4)H(8)O(2)). These constitute three kinds of Na(I) centres, two of which are seven-coordinate while the third is five-coordinate. One ...

The most efficient photocatalytic degradation technology of methyl orange effluent was that the concentration composites solution is 2g/L, time 90min and temperature at 35℃ with adding 30mL/L H2O2.