A family of conjugated polymers based on 9,9-disubstituted fluorenes and cyanovinylenes were reported. The polymers were synthesized by employing a slightly modified Suzuki coupling polymerization reaction and condensation ...

Determination of potassium and urease activity of locally found plant seeds have been made. The membrane-stabilized water-nitrobenzene interface was used as an al11pcrometric sensor. The electroanalytical teclmiques ...

Using the voltammetric senor which is constracted in our laboratory and the membrane stabilized interface between two immiscible electrolyte solution in a flow injection system the transfer of anions (CIO ,NO & 01 land ...

Acrylamide or 2-propene amide is an organic compound formed in French fries, potato crisps, bread and coffee when they are fried, roasted or baked at a higher temperature. It is formed from the reaction of reducing sugars ...

An amperometric urea biosensor based on facilitated transfer of urease-generated ammonium ion by a neutral carrier (ionophore) dibenzo-18-crown-6 across the polarizable membrane-stabilized interface between water and ...

Two hitherto unknown dimeric anthraquinones, lO-(Physcion-Tyl)-lO-hydroxy chrysophanol anthrone (122) and 9-(Physcion-T -yI)5, lO-dihdroxy-2-methyl-l,4- anthraquinone (124) along with chrysophanol (120), physcion (121), ...

An internationally known test method for nitrite was applied to determine the anion in tap and river water samples. The method is based on the reaction of nitrite with sulphanilamide in acidic medium to form diazonium ...

AC and DC voltammetry and flow injection amperometry methods were employed in this work. The influence of ionophores on the facilitated transfer of K+ and Na+ ions across membrane stabilized water/nitrobenzene interface ...

This study assessed in Assosa catchment of Benishangul Gumuz Regional State, Western Ethiopia which is aimed to characterize Assosa Town ground water systems with the help of different methods and approaches that includes ...

Tannery effluents consist of large amounts of heavy metals that are toxic to our health. Release of untreated tannery effluents to the water bodies have a negative impact on water quality directly and human health indirectly. ...