Standards for standardization of reducing agents: K2Cr2O7 KIO3 Ce4+ Standards for standardization of oxidizing agents: Na2C2O4 Na2S2O3 Fe2+ (Mohr’s salt and Oesper’s salt)
.V. Auxiliary Oxidizing and Reducing Agents The analyte must be in a single oxidation state at the start of the titration. This can be achieved by using a preoxidation or pre-reduction step prior to analysis
Redox equilibrium, galvanic cell, standard reduction potential E0, redox titration,... as the main contents of the lecture "Lecture 5: Redox equilibrium". Invite you to consult the lecture content to capture detailed information.
The dinitrogenase component proteins of the conventional Mo nitrogenase (MoFe protein) and of the alternative Fe-only nitrogenase (FeFe protein) were both isolated and puriﬁed from Rhodobacter capsulatus, redox-titrated according to the same procedures and subjected to an EPR spectroscopic comparison. In the course of an oxidative titration of the MoFe protein (Rc1Mo) three signiﬁcant S ¼ 1/2 EPR signals deriving from oxidized states of the P-cluster were detected: (1) a rhombic signal (g ¼ 2.07, 1.96 and 1.
Thecaa3-oxidase from Thermus thermophilushas been
studied with a combined electrochemical, UV/VIS and
Fourier-transform infrared (FT-IR) spectroscopic
approach. In this oxidase the electron donor, cytochromec,
is covalently bound to subunit II of the cytochrome c
oxidase. Oxidative electrochemical redox titrations in the
visible spectral range yielded a midpoint potential of
)0.01 ± 0.01 V (vs. Ag/AgCl/3MKCl, 0.218 V vs. SHE¢)
for the hemec.
A novel metallobridged bis(b-cyclodextrin)s 2[bis(b-CD)s 2] was synthesized
and characterized by means of
H NMR, IR, element analysis and redox
iodometric titration. The fluorescence of metallobridged bis(b-CD)s 2
was weak compared with bis(b-CD)s 1because of the paramagnetism of
copper (II) ions.