A selective optical sensor based on immobilization of Eriochrome Cyanine R for the determination of Al(III) ions in aqueous solution has been developed. The method is based on the spectrophotometric measurement of complex Eriochrome Cyanine R-aluminium at 537 nm. The sensing membrane is made of a triacetylcellulose film containing Eriochrome Cyanine R colorimetric reagent immobilized as an ion ...

Abstract Valorization of fly ash as zeolite is one sustainable ways to reduce environmental burden. In this paper, was prepared from by hydrothermal process and applied dyes adsorbent. process, reacted with 5 N NaOH solution using solid/liquid ratio 1/30 for 15 hours at temperature 85°C. Characterization products consisted X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area, scan...

The presence of Streptococcus mutuns in dental plaque may be related to human dental caries. The cultural identification of this organism in plaque is not likely to be used routinely in a clinical or epidemiological situation. In an effort to develop a simpler diagnostic means of identifying Strep. mutans in plaque, antisera were prepared for the 5 known serotypes of Strep. mutuns. These immune...

epithelium, we believed this organism to be a Cyclospora sp. rather than a Cystoisospora sp. We searched the serum bank of the Division of Parasitic Diseases, Centers for Disease Control and Prevention, and identified a serum sample from a person with a case of C. cayetanensis cyclosporiasis. An indirect immunofluorescence test was performed by using this serum on a deparaffinized section of th...

Prussian blue analogue potassium metal hexacyanoferrate (KMHCF) nanoparticles Fe4[Fe(CN)6]3 (FeHCF), K2Cu3[Fe(CN)6]2 (KCuHCF), K2Ni[Fe(CN)6]·3H2O (KNiHCF), and K2Co[Fe(CN)6] (KCoHCF) have been synthesized using plant based biosurfactant Aegle marmelos (Bael) and water as a green solvent. It must be emphasized here that no harmful reagent or solvent was used throughout the study. Plant extracts ...