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L-Histidinin Proton-Ligand Kompleks Dengelerinin Potansiyometrik Metotla İncelenmesi

Investigation of Proton-Ligand Complex Equilibria of L-Histidine By Potentiometric Method

Journal Name:

  • Gazi Eğitim Fakültesi Dergisi

Publication Year:

  • 2001

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this research, proton-ligand complex equilibrium of L-histidine was investigated using a modified glass-combined pH-electrode at 25.00±0.01 0 C, 0.1 M ionic medium and under nitrogen atmosphere by potentiometric titration method. JHparameter should be determined in addition to E 0 ,s due to the fact the pH value at which the protonation equilibrium of the carboxylate group of histidine is lower than 2. The calculation of stoichiometric protonation constants of L-histidine has been carried out by BEST computer programme using pH (corrected pH) determined by the use of E 0 , s and JH parameters.
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Abstract (Original Language): 
Bu çalışmada, L-histidinin proton-ligand kompleks dengeleri potansiyometrik titrasyon metodu ile modifiye edilmişkombine cam pH elektrodu kullanılarak, 25,00±0,01 0 C’de, 0,1 M iyonik şiddette ve azot atmosferinde incelenmiştir. L-histidinin karboksilat grubunun protonasyon dengesinin gerçekleştiği pH’nın 2’den küçük olmasınedeni ile . E 0 , s parametrelerine ilave olarak JHparametresi belirlenmiştir. E 0 , s ve JH parametrelerinin kullanılmasıile belirlenen pH değerleri (düzeltilmişpH) kullanılarak stokiyometrik protonasyon sabitleri BEST bilgisayar programıile belirlenmiştir.
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  • 3
109-120
  • Turkish

REFERENCES

References: 

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