the excess of HCl added and the protonated analyte are titrated. Similarly, when the compound is poorly soluble in acidic medium, a back titration of the compound can be carried out starting at pH 11 and using HCl as titrant until precipitation. The potentiometric titrations can be easily auto...
The buffer pH was adjusted by potentiometric titration and degassed using an ultrasonic bath. Capillary preconditioning In case of new capillary, the preconditioning procedure was performed by flushing with 1 mol/L NaOH solution for 20 min, next with 0.1 mol/L solution of NaOH for 20 min, then...
The prediction of implant behavior in vivo by the use of easy-to-perform in vitro methods is of great interest in biomaterials research. Simulated body fluids (SBFs) have been proposed and widely used to evaluate the bone-bonding ability of implant mater
Conductometric titrationNaftidrofuryl oxalateOxalatePropafenone HClSilver nitrateSotalol HClA simple, precise, rapid, and low-cost conductometric method for determination of naftidrofuryl oxalate, propafenone HCl and sotalol HCl in pure form and in pharmaceutical formulations using silver nitrate has been ...
For example, the interaction of CDs with human and bovine serum albumins, respectively, was investigated (44), and steady state fluorescence, circular dichroism spectra, and isothermal titration calorimetric data showed no significant interaction. Indeed, CDs interact with the hydrophobic amino acids ...
Record the volume of 0.5 M HCl required for the titration.CALCULATIONS 1. Saponification value = (B – S) (M) ××W56 1 . Where— B = volume of 0.5 M HCl required to titrate blank, mL S = volume of 0.5 M HCl required to titrate test portion, mL M = molarity of HCl solution ...
The traditional method for obtaining a quantita- tive estimate of prion infectivity is end-point dilution titration in animals. A suspension of the tissue or fluid of interest is diluted in tenfold serial steps, and then each dilution is inoculated into a group of animals. A dilution at which...
For example the layers may be applied to the "wells" of micro-titration plates, at the tip of optical fibre bundles or on single optical fibres or light-guiding structures. An optical-chemical sensor is usually able to measure reversibly and often continuously. Exceptions to this rule are ...
To measure cytolytic activity, the cells are incubated with inhibitors (or controls) for 30 minutes at 37° C., washed, counted, and diluted for titration of cytotoxic activity against 1×10451 Cr-labeled P815 cells. Recovery of G4 is comparable for all the treated samples. In some experime...
b. continuously adding to said solution, at a constant rate, a titrant which chemically reacts with said known free acids and ions to cause a thermometric titration and a conductometric titration of said known free acids and ions; c. generating during said thermometric titration and conductometric...