The first paradigm of halide-controlled interconversion between two- and three-coordinate copper(i) complexes, [Cu(L(Ph))](ClO(4)) (1?ClO(4)) and [Cu(L(Ph))I] (2), where L(Ph) = 1,3-bis-(3,5-dimethyl-pyrazol-1-ylmethyl)-2-phenyl-2,3-dihydro-1H-perimidine, was presented, which can result in reversible fluorescence changes.

The study has been carried out to assess surface water quality of Old Brahmaputra River from September 2015 to March 2016. DO, BOD5, COD, pH, EC, Chloride, Alkalinity, and Hardness concentrations in water samples have been found to range within 0.66-2.9 mg/L, 21-138 mg/L, 45-250 mg/L, 7.1-7.8, 185-1080 uS/cm, 10-98 mg/L, 85-197 mg/L, and 84-148 mg/L, respectively. Multivariate statistical analy...

The study has been carried out to assess surface water quality of Old Brahmaputra River from September 2015 to March 2016. DO, BOD5, COD, pH, EC, Chloride, Alkalinity, and Hardness concentrations in water samples have been found to range within 0.66-2.9 mg/L, 21-138 mg/L, 45-250 mg/L, 7.1-7.8, 185-1080 uS/cm, 10-98 mg/L, 85-197 mg/L, and 84-148 mg/L, respectively. Multivariate statistical analy...

A capillary electrophoresis method has been established for the determination of triptonide and triptolide in Multi-glycosides Tripterygium wilfordii tablets. Capillary separation was carried out by using 0.01mol L borax + 0.02 mol L boric acid + 0.02 mol L SDS (pH = 8.0) as the buffer, a fused – silica capillary tube column (60.2 cm × 75μm id. 52.6 cm of effective length) as the separation cha...

Textile dyeing is considered to be one of the major industrial sources of high rates of organic and aromatic compounds. Conversely, these compounds have become a significant environmental problem. Many methods have been investigated for color removal from dye-containing wastewater. In this research, the efficiency of the electrocoagulation (EC) process with aluminum electrodes in the removal of...

Masker gel peel off adalah salah satu jenis kosmetika yang memiliki keunggulan dalam penggunaannya yaitu mudah diangkat dan dilepaskan. Kulit buah pepaya (Carica papaya L.) kandungan antioksidan kuat seperti serat,senyawa fenolik,abu,vitamin C serta berbagai material kalium belerang. Tujuan penelitian ini untuk memformulasikan ekstrak kulit menjadi masker dengan variasi konsentrasi HPMC, menget...

Introduction: Perchloroethylene (PCE) is one of the most well-known chlorinated organic compounds recently detected in aqueous environments. The presence of PCE in aquatic ecosystems has caused many health problems and environmental challenges. Therefore, its removal and treatment from aqueous environments are essential. Materials and Methods: The electro-Fenton (EF) process was carried out in...

This study was conducted in the city of El-Beida-Libya on different samples from 11 drinking water purification and treatment stations, compared with source (residential water) some most popular mineral Libyan local markets. During this work, a number chemical properties studied were examined, such as pH, Electric Conductivity (EC) (µS/cm),Total Dissolved Solids (TDS) (mg/l), Alkalinity (as HCO...

conclusions the ammonia degassing is a simple and suitable technology for ammonia removal at high concentration. undesirable removal efficiency (17%, 35.5% and 31%) can be occurred in suitable ph 11 in the presence of lower ammonia concentrations (50, 100 and 200 mg/l). results according to obtained results, the maximum removal efficiencies were determined 17%, 35.5%, 31%, 66%, and 85.5%, for 5...