The influence of arylthiols on cysteine-free ligation, i.e. the reaction between an alkyl thioester and a primary amine forming an amide bond, was studied in a polar aprotic solvent. We reacted the ethylthioester of hippuric acid with cyclohexylamine in the absence or presence of various quantities of thiophenol (PhSH) in a slurry of disodium hydrogen phosphate in dry DMF. Quantitative conversi...

Dr. K. Farrington, Renal Unit, Lister Hospital Stevenage, Coreys Mill Lane, Stevenage, Herts SG1 4AB (UK) Dear Sir, Calcium carbonate is the most commonly used phosphate binder in chronic renal failure (CRF). Recently it has been shown that its phosphate-binding capacity is limited at low pH [1]. This study was performed to assess the effect of the proton pump inhibitor omeprazole on the phosph...

We have investigated the ultrasonically induced birefringence traces of aqueous solutions dexamethasone disodium phosphate, a derivative hydrocortisone (cortisol). The stationary and transient built-up decay relaxation processes were studied as function solution concentration, ultrasound frequency intensity, well temperature. results analyzed in view structural peculiarities system an effort to...

To evaluate the sedimentation of aluminium phosphate [AlPO4] and ferrous [Fe3(PO4)2] precipitates in sodium carboxymethylcellulose (Na-CMC) biopolymer at different temperatures, batch-wise precipitation tests AlPO4 Fe3(PO4)2 solutions Na-CMC were carried out temperatures 30, 40 50oC. The objective was to determine On-set Sedimentation Rate (OSR) Volume Ratio (SVR) metal phosphates. Fixed volume...

Abstract Background Faba bean attacked by soil-borne pathogens causing root rot disease. This disease has serious damage to both plant stand and produced yield. The present study aimed evaluate effectiveness of the bioagents; Trichoderma harzianum some resistance inducers as fungicide alternatives against incidence at pre- post-emergence growth stages. Results Under open greenhouse conditions ,...

INTRODUCTION Mineral trioxide aggregate (MTA) can be used in the treatment of irritated vital pulp and repair of root perforations. However, the initial reaction of inflammatory cells to this material and also its setting time are not ideal. Studies have shown that disodium hydrogen phosphate (DHP), decreases the setting time of MTA, with no effect on its pH. This study was undertaken to evalua...

Abstract In this study, the electrochemical mechanisms of struvite formation were investigated by studying behavior Mg‐based and (poly)crystalline‐Pt electrodes in presence ammonium dihydrogen phosphate, disodium chloride solutions. It was found that a precipitate formed on electrodes, while poly‐Pt electrode showed typical voltammetric features aqueous electrolytes. The structure, morphology, ...