Liu, Determination of the Degree of Deacetylation of Chitosan by Potentiometric Titration
Preceded by Enzymatic Pretreatment, Carbohydr.
Figure 1 shows the results of the potentiometric titration
on the raw material as well as on the non-activated activated substrates.
curves of blank (red) (solvent mixture: toluene/isopropanol/water) and of sample A2 (black) according to ASTM D664 modified method with 0.1 mol [L.sup.-1] KOH titrant solution.
 IEC 62021-1, "Determination of Acidity-Part-1 Automatic potentiometric titration
- Test method," Int.
He explores contemporary research, potential applications, and future research directions for polyelectrolyte solutions relying on contributions from an international group of experts on the strengths and chemistry of polyelectrolyte solutions, their thermodynamic properties, the ionization equilibrium and potentiometric titration
of weak polyelectrolytes, the molecular conformation of linear polyelectrolytes, and several other related subjects.
Keywords: Ion-selective electrode, potentiometric titration
, drug analysis, fluoxetine hydrochloride.
Specific analysis of functional groups on acid-washed biochar: potentiometric titration
These new test methods are: ASTM D664 (for acid number of petroleum products by potentiometric titration
), ASTM D5291 (for instrumentation determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants), and ASTM D5622 (for determination of total oxygen in gasoline and methanol fuels by reductive pyrolysis).
The experimental data from potentiometric titration
were analyzed with three models, assuming the presence of one, two, and three types of functional groups on biomaterial surface, respectively .
For a determination of the degree of acetylation, potentiometric titration
(PT) and high-field :H NMR spectroscopy were used.
The PDA functions were generated by analysis of binding protons curves obtained from potentiometric titration
(Villarreal et al, 2012): See Eq.
The amount of IA incorporated in the shell was determined by potentiometric titration
(41-45) with a Seven Easy pH Meter S20 model, from Mettler Toledo.