LCEC determination of the copper protein ceruloplasmin in human serum at a polyaniline chemically modified electrode

Ye, Jiannong; Baldwin, Richard P.; Schlager, Janis W.

doi:10.1002/elan.1140010208

Cited by 25 publications

(4 citation statements)

References 32 publications

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“…The redox protein ceruloplasmin was detected in flow injection and high-performance liquid chromatography (HPLC) experiments due to the electrocatalytic behavior of polyaniline coated on a glassy carbon electrode [14]. The same type of electrode was used in flow systems for the detection of electroinactive anions.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of polymer‐coated mercury film electrodes for voltammetric analysis of lead and cadmium in the presence of surfactants

et al. 1995

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Four different polymer-modified mercury film electrodes (MFEs) on a glassy carbon substrate were tested for their ability to determine lead and cadmium in the presence of surfactants. The polymers used for electrode modification were: Nafion, polyaniline, base-hydrolyzed cellulose acetate, and base-hydrolyzed poly(ethyl3-thiophene acetate). Triton X-100, sodium dodecyl sulfate, dodecyl pyridinium chloride, and bovine serum albumin were chosen as representatives of surface active compounds. It is shown that polymer-covered electrodes are useful in surfactant-containing media ,in some instances, but none of them remained unaffected by any of the four surfactants. The cellulose acetate electrodes seem to be less affected by proteins than the bare MFE and other modified electrodes. The Nafion and cellulose acetatecoated electrodes were used for the determination of lead in filtered and acidified, but otherwise untreated, water samples from a sewage treatment plant. The results obtained with the cellulose acetate-coated electrode were in good agreement with those from atomic absorption spectroscopy.

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Section: Introductionmentioning

confidence: 99%

Comparative study of polymer‐coated mercury film electrodes for voltammetric analysis of lead and cadmium in the presence of surfactants

et al. 1995

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“…The uptake capacity of GSE‐2 and GSB‐2 decreases in the order Ni 2+ ≈ Cu 2+ > Co 2+ > Zn 2+ > Ca 2+ for the pH range studied. The higher uptake observed for Ni 2+ and Cu 2+ is due to the formation of a more stable metal ion complexes with piperazine 20, 21…”

Section: Resultsmentioning

confidence: 97%

Water-sorption and metal-uptake behavior of pH-responsive poly (N-acryloyl-N?-methylpiperazine) gels

Loh¹,

Deen²,

Ye³

et al. 2001

J. Appl. Polym. Sci.

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Hydrogels based on N‐acryloyl‐N′‐methylpiperazine (AcrNMP) swelled extensively in solutions of low pH due to the protonation of the tertiary amine. The water transport in the gels under an acidic condition was non‐Fickian and nearly Fickian in neutral pH with the collective diffusion coefficients determined as 2.08 × 10−7 and 5.00 × 10−7 cm−2 s−1, respectively. These gels demonstrated good metal‐uptake behavior with various divalent metal ions, in particular, copper and nickel, with the uptake capacity increased with increasing pH. The swelling ratio of the gel in the presence of metal ions decreased with increasing metal ion uptake. The results suggest that high metal ion uptake can lead to physical crosslinking arising from the interchain metal complex formation. The metal‐loaded gels could be stripped easily with 1M H2SO4 without any loss in their uptake capacity. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 268–273, 2001

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“…The higher uptake observed for Ni 2ϩ and Cu 2ϩ is due to the formation of a more stable metal ion complexes with piperazine. 20,21…”

Section: Water-sorption Kineticsmentioning

confidence: 99%

Water‐sorption and metal‐uptake behavior of pH‐responsive poly (N‐acryloyl‐N′‐methylpiperazine) gels

Loh

Deen

et al. 2001

J. Appl. Polym. Sci.

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Hydrogels based on N-acryloyl-NЈ-methylpiperazine (AcrNMP) swelled extensively in solutions of low pH due to the protonation of the tertiary amine. The water transport in the gels under an acidic condition was non-Fickian and nearly Fickian in neutral pH with the collective diffusion coefficients determined as 2.08 ϫ 10 Ϫ7 and 5.00 ϫ 10 Ϫ7 cm Ϫ2 s Ϫ1 , respectively. These gels demonstrated good metal-uptake behavior with various divalent metal ions, in particular, copper and nickel, with the uptake capacity increased with increasing pH. The swelling ratio of the gel in the presence of metal ions decreased with increasing metal ion uptake. The results suggest that high metal ion uptake can lead to physical crosslinking arising from the interchain metal complex formation. The metal-loaded gels could be stripped easily with 1M H 2 SO 4 without any loss in their uptake capacity.

show abstract

LCEC determination of the copper protein ceruloplasmin in human serum at a polyaniline chemically modified electrode

Cited by 25 publications

References 32 publications

Comparative study of polymer‐coated mercury film electrodes for voltammetric analysis of lead and cadmium in the presence of surfactants

Comparative study of polymer‐coated mercury film electrodes for voltammetric analysis of lead and cadmium in the presence of surfactants

Water-sorption and metal-uptake behavior of pH-responsive poly (N-acryloyl-N?-methylpiperazine) gels

Water‐sorption and metal‐uptake behavior of pH‐responsive poly (N‐acryloyl‐N′‐methylpiperazine) gels

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