Cl-4% alcohol supporting electrolyte (pH 5±1), I yielded a sensitive reduction wave. The peak potential is -0.90V(vs.SCE),and the peak height is linearly proportional to the concentration of I in the range of 8×10~(-8)～1.6×10~(-6)mol/L.
In 0.1 mol/L KCl 1×10 -4 mol/L CTMAB supporting electrolyte, the first derivative peak current of the NCDL reduction wave is linearly proportional to its concentration in the range of 1×10 -6 ～6×10 -5 mol/L, r = 0.996 ( n =7).
In a buffer solution of 0.1 mol/L (CH2)6N4-HCl(pH 3.57), the complex of indium-N-o-carboxyphenyl-N′-(2-aminoethyl)acetamide (OPAC) was adsorb ed on the surface of mercury electrodes and a reduction peak was found at -0.60 V(vs. SCE).
The electrochemical behavior of Cu (Ⅱ)-3, 5-dibromosalicydene-2-amino-4-phenythiazole(Dbsal-PhTA) complex was investigated in a buffer solution of 1. 60 mol/L NH3·H2O-NH4Cl(pH =9.5), the Cu(Ⅱ)-Dbsal-PhTA complex produces a reduction peak at -0.36 V(vs.SCE).
The Sb(Ⅲ)- BPT complex produces a reduction peak at -0. 58 V(vs. SCE). Under optimum conditions the detection limit of Sb(Ⅲ) and the linear range of the single-sweep second order derivative osillopolarographic current were 8 X 10-9 mol/L and 1 X l0-8-7 X 10-6 mol/L, respectively.
A sensitive reductive wave of thioglycollic acid was observed in a H 2SO 4 NH 4OAc buffer medium of pH 3.5. The 2nd derivative peak potential found by the single scanning polarography was -0.320V( vs. SCE).
Cyclic voltammograms of the NiHCF/graphite power/MTMOS modified electrode at different scan rates showed that the reversible oxidation and reductive wave in which half-wave potential was 0.393? V was [Fe~Ⅲ(CN)-6]~3-/[Fe~Ⅱ(CN)-6]~(4-)in the range of-0.1～0.7?
In a base solution of H 2SO 4 and NaCl, a favorable reductive wave of Sn(Ⅱ) is observed at the peak potential of -0.52V ( vs .SCE). Based on this fact, a method for the determination of tin in anode plate which is an alloy composed mainly of lead, tin, antimony and silver, used in the production of electrolytic manganese.
The method for the determination of formaldehyde in indoor air used the system of acetic acid-ammonium acetate-acetylacetone as the support electrolyte producing a very sensitive reducing wave at the potential of -1100mV. The concentrations of formaldehyde ranging from 0.01~0.10ug/mL, and 0.1 ~ 1.0|ig/mL were in direct proportion to peak current, and their coefficient correlation were 0.9936 and 0.9959 respectively.
Results Reactant was produced,an extremely sensitive reducing wave with two orders of differential coefficient at -700 mV.Using this method to determine the formaldehyde,needn't get rid of oxygen,limit of detection was 0.003 mg/L,relative standard deviation(RSD)is 4.85%,the rate of recovery is between 96%～102%.
Investigation of the electrochemical behavior of timolol maleate on a mercury drop electrode reveals the presence of a specific reduction peak of analytical significance.
The current of the hydroquinone oxidation peak and the current of the reverse benzoquinone reduction peak at the chemically modified electrode were linear functions of their concentrations in the range from 1 × 10-6 to 1 × 10-3 M.
At potentials more positive than that of the Co(+3) → Co(+4) oxidation, secondary products of electrochemical reaction form and are revealed by a cathodic reduction peak.
The first reduction peak corresponded to a reversible single-electron transfer leading to the formation of a relatively stable anion-radical whose ESR spectrum was registered and characterized.
The reduction peak of bromate has been observed at the potential Ep--1.6 V in an ammonia buffer as a supporting electrolyte.
An important habitat modifier in New England is the intertidal grass Spartina alterniflora which facilitates the establishment and persistence of cobble beach plant communities by reducing wave-related disturbance.
In the NH4Cl supporting electrolyte, within the pH range from 1 to 5, an irreversible adsorptive reducing wave of salicyl fluorone(SAF) was obtained.
The new noninvasive index, DR1/3, is useful in evaluating the influence of aortic wave reflection as part of the left ventricular afterload and in assessing the benefit of treatment aimed at reducing wave reflection.
Eventually, offshore deposits cause storm waves to break farther offshore, reducing wave action on the beach.
For example, we find that damping on momentum is much more effective in reducing wave amplitudes than damping on temperature.