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Relevant bibliographies by topics / Gravimetric determination of Copper(II)

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Academic literature on the topic 'Gravimetric determination of Copper(II)'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Gravimetric determination of Copper(II)"

1

Acanski, Marijana. "Comparation of fundamental analytical methods for quantitative determination of copper(II)ion." Chemical Industry 62, no. 2 (2008): 85–89. http://dx.doi.org/10.2298/hemind0802085a.

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Copper is a ductile metal with excellent electrical conductivity, and finds extensive use as an electrical conductor, heat conductor, as a building material, and as a component of various alloys. In this work accuracy of methods for quantitative determination (gravimetric and titrimetric methods of analysis) of copper(II) ion was studied. Gravimetric methods do not require a calibration or standardization step (as all other analytical procedures except coulometry do) because the results are calculated directly from the experimental data and molar masses. Thus, when only one or two samples are

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V., V. BALAKRISHNA, and APPALA RAJU N. "Gravimetric Determination of Palladium(Il), Copper(II) and Nickel(Il), and Palladium(Il), Copper(Il) and Manganese(II) from Ternary Mixtures, using 2-Hydroxy- I -acetonaphthoneoxime and I-Hydroxy-2-acetonaphthoneoxime." Journal of Indian Chemical Society Vol. 63, May 1986 (1986): 512–14. https://doi.org/10.5281/zenodo.6296740.

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Depaitment of Chemistry, Sri Venkateswara University Post-Graduate Centre, Kurnool-518 001 Department of Chemistry, Sri Venkateswara University, Tirupati-517 502 <em>Manuscript received 30 July 1985, revised 24 February 1986, accepted 23 April 1986</em> 2-Hydroxy-1-acetonaphthoneoxime and its isomer 1-hydroxy-2-acetonaphthoneoxime have been used as reagents for the gravimetric determination of palladium(II), copper(II) and nickel(II) as well as palladium(II), copper(II) and manganese(II) from ternary mixtures. The results obtained are fairly accurate.

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HAYASHI, Kenjiro, Yoshiaki SASAKI, Shoji TAGASHIRA, Yoshiko MURAKAMI, Koukichi KUSUMORI, and Yoshiko MORINAGA. "Gravimetric determination of copper(II) with ammonium 1-pyrrolidine dithiocarbamate." Bunseki kagaku 36, no. 7 (1987): 450–52. http://dx.doi.org/10.2116/bunsekikagaku.36.7_450.

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Tubino, Matthieu, and Rafael L. de Souza. "Gravimetric Method for the Determination of Diclofenac in Pharmaceutical Preparations." Journal of AOAC INTERNATIONAL 88, no. 6 (2005): 1684–87. http://dx.doi.org/10.1093/jaoac/88.6.1684.

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Abstract A gravimetric method for the determination of diclofenac in pharmaceutical preparations was developed. Diclofenac is precipitated from aqueous solution with copper(II) acetate in pH 5.3 (acetic acid/acetate buffer). Sample aliquots had approximately the same quantity of the drug content in tablets (50 mg) or in ampules (75 mg). The observed standard deviation was about ± 2 mg; therefore, the relative standard deviation (RSD) was approximately 4% for tablet and 3% for ampule preparations. The results were compared with those obtained with the liquid chromatography method recommended in

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Krishna Purohit, Miss, and K. K. Desai. "2-Hydroxy-4-Methoxybenzophenone Oxime as an Analytical Reagent for Copper(II)." E-Journal of Chemistry 2, no. 2 (2005): 161–64. http://dx.doi.org/10.1155/2005/825847.

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2-Hydroxy-4-methoxybenzophenoneoxime (HMBO) was developed as a new analytical reagent for the gravimetric determination of Cu(II). In pH 2.5-9.0 the reagent gives brown coloured precipitate with Cu(II). Spectrophotometric methods revealed that the stoichiometry of the complex is 1:2 (metal: ligand). Beer's law is obeyed up to 31.75 ppm of Cu(II). Molar absorptivity and Sandell's sensitivity at 400 nm were found to be 7.0×102L mol-1cm-1and 0.090 μg/cm2respectively. The stability constant of Cu(II)-HMBO complex is found to be 6.13×109. Gibb’s free energy change for complex formation reaction was

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Shingadia, S. K., and K. K. Desai. "2-Hydroxy-5-methylbenzophenone oxime(HMBO) as an Analytical Reagent for Gravimetric Determination of Cu(II)." E-Journal of Chemistry 4, no. 1 (2007): 97–102. http://dx.doi.org/10.1155/2007/459181.

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2-Hydroxy-5-methylbenzophenone oxime (HMBO) was developed as a new analytical reagent for the gravimetric determination of divalent copper ion. In pH rang of 3.0 to 6.0, the reagent gives a buff colored precipitate with Cu(II). Job’s method and mole ratio method revealed that the stoichiometry of the complex is 1:2 (metal: ligand). Beer’s law is obeyed up to 61.25 ppm of Cu(II). Molar absorptivity and Sandell’s sensitivity at 400 nm were found to be 6.32 × 102L mol-1cm-1and 0.359 μg/cm2respectively. The stability constant of Cu(II)-HMBO complex is found to be 2.43 × 109. Gibb’s free energy cha

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Mohabey, Hemlata. "IR Spectra, Magnetic and Thermal Studies of Copper (II) Complex of N-Hydroxy-N-(4-Chloro) Phenyl N’(4-Fluoro) Phenyl Benzamidine Hydrochloride." Material Science Research India 11, no. 1 (2014): 63–65. http://dx.doi.org/10.13005/msri/110108.

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Copper (II) reacts with HCPFPBH and forms buff coloured precipitate insoluble in many organic solvents like absolute alcohol, ether, benzene, chloroform etc. The Solid complex has molecular formula (C19H13N2OFCl)2Cu which melts at 2020C with decomposition. The infrared spectra of the complex was recorded in the range 4000-450cm-1. The ligand molecule consists of a weak band at 2550 cm-1. This confirms the presence of azomethine nitrogen in the ligand. This band is absent in the IR Spectrum of the complex confirming the involvement of this group in complexation . The strong band of the ligand a

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Uesugi, Katsuya, Tetsu Kumagai, and Soichiro Wada. "Gravimetric determination of copper with 2-hydroxy-1-naphthaldoxime." Microchemical Journal 33, no. 2 (1986): 204–8. http://dx.doi.org/10.1016/0026-265x(86)90056-1.

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Meena, Asha. "THERMAL DEGRADATION OF COPPER (II) GROUNDNUT SOAP COMPLEXES." International Journal of Global Research Innovations & Technology 03, no. 01 (2025): 43–46. https://doi.org/10.62823/ijgrit/03.01.7197.

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Oil occurred natural sources are considered to be the essential category of renewable sources and can be produced as of natural plants such as groundnut, they comprise generally of triglycerides. The main object of this work gives an outline of innovative result in the area of thermo gravimetric analysis for Copper (II) groundnut soap complexes. Solid state kinetics has fascinated the awareness of precise society not only due to its abundant applications in environment, energy, waste water treatment, pollution control and green chemistry but also due to their extensive variety of biological ac

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Yu, Yuan Yan. "Interaction of Human-Like Collagen with Copper (II): Effect on Thermal Characteristics." Advanced Materials Research 721 (July 2013): 625–28. http://dx.doi.org/10.4028/www.scientific.net/amr.721.625.

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This work describes the aqueous-solution technique preparation and characterization of the complex between human-like collagen and copper (II). Pure human-like collagen and the copper complex were characterized by thermo gravimetric (TG) and differential scanning calorimetry (DSC) analysis. The TG curves and DSC data reveal the significant thermal differences between pure protein and the copper complex, demonstrating the formation of a new chemical compound, which is different from the free HLC and with more stable thermodynamic properties.

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Dissertations / Theses on the topic "Gravimetric determination of Copper(II)"

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Chen, Tianyu. "Study on the Copper(II)-Lactate Complexes in Cu₂O Electrodeposition Baths：From Determination to Application." Kyoto University, 2020. http://hdl.handle.net/2433/259043.

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Ngwekazi, Andisiwe. "Voltammetric determination of metformin and its derivatives using Cu modified polymer electrode." University of the Western Cape, 2020. http://hdl.handle.net/11394/7873.

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>Magister Scientiae - MSc<br>Diabetes, a worldwide disease, is classified into two types, type 1 or insulin-dependent and type 2 or noninsulin-dependent. Based on reports published by the International Diabetes Federation, the total number of those suffering from diabetes is growing every year. Statistics predict that type 2 diabetes, currently affecting about 8% of the adult population, would spread at such a pace that by 2030, more than 40 million cases of diabetes would be found throughout the world. On the other hand, studies revealed that patients with type 2 diabetes mellitus (T2DM) have

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Goodwin, Jocelyn Marie. "Synthesis and application of copper (I) and (II) complexes of monoanionic tripodal tetradentate ligands for the determination of structure-activity relationships in ATRP /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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Wu, Chi-Sue, and 吳琪淑. "Determination of manganese (II), copper (II) and cobalt (II) in biological samples by high performance liquid chromatography." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/25699019127119136566.

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碩士<br>靜宜大學<br>應用化學研究所<br>92<br>An ion-pair reversed-phase high-performance liquid chromatographic method with UV-visible spectrophotometric detection is proposed for the simultaneous determination of manganese, copper and cobalt in biological samples. 4-(2-pyridylazo)resorcinol (PAR) chelates of Mn2+, Cu2+ and Co2+ were successfully separated and accurately determined at 450 nm. PAR chelates were eluted within 10 min at a flow-rate of 1.2 ml min-1 with a methanol aqueous mobile phase , CH3OH–water (42.5:57.5, v/v), containing 8.0×10-4 mol L-1 acetate buffer (pH 8.0), 8.0×10-3 mol L –1 TBA-Br a

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Chang, Wen-Fang, and 張文芳. "A Study on the Determination of Copper(II) and Cobalt(II) by Ion-pair Chromatography." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/41411036737196992771.

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碩士<br>靜宜大學<br>應用化學系<br>82<br>Since metals and their complexes play an important role in both biological chemistry and in enviromental chemistry, the analysis of metals is rather important. In recent years, high performance liquid chromatography coupled with various detectors has become one of the best methods for metal analysis. In this study, we used 4-（2-pyridylazo）resorcinol (PAR） as a pre-column reagent, Cu-PAR and Co-PAR were separated and quantitatively determined by reverse phase hi

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Hsu, Chao-Sheng, and 許朝昇. "Experimental Determination of Copper(I) quantum yields for Copper(II)-Amino acid Complexes In Aqueous solution." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/37328097259102970771.

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碩士<br>國立清華大學<br>原子科學系<br>92<br>The Cu(I) quantum yields of copper(II)-amino acid complexes in aqueous solutions have been measured at 313nm in this study. For Alanine (NH2CHCH3COOH) as a model ligand, the effects of Cu(I) quantum yields in different conditions (changing pH, copper and ligand concentration, and ionic strength) were discussed. In order to know the trend of photoreactivity of copper-amino acid complexes, the rest eight amino acids with non-polar side chains have also studied. Bathocuproine method is used to determine the copper(I) quantum yield. For the 1:1 Cu(II) complexes (CuL

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Liu, An-Chiang, and 劉安強. "Application of Cysteine Monolayers for Electrochemical Determination of Sub-ppb Copper(II)." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/47608821561893185103.

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Wang, Hsu-Fann, and 王樹範. "The Determination of Copper(II) Nitrite and Nitric Oxide Using Chemically Modified Electrode." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/72539245121804216261.

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碩士<br>國立中興大學<br>化學系<br>88<br>There are two parts in this thesis, according to different chemically modified electrode. Part 1 were "A Nontronite Clay/Cellulose Acetate Modified Film Electrode for the Trace Detection of Copper in Water", and part 2 were" Mechanistic Study of NO2- Oxidation and NO Reduction on the Nafion/Lead-Ruthenium Oxide Pyrochlore Chemically Modified Electrode". In part 1, The behavior of nontronite clay modified glassy carbon (NGC) electrode towards Cu2+ in various solution pH has studied. The NGC electrode exhibits excellent electrocatalytic activity for Cu2+

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葉雲臺. "Effects of Copper(II) on the Determination of Aliphatic Aldehydes by HPLC Using DNPH Precolunm Derivatization." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/18518111954765417083.

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Tsai, Chia-Yi, and 蔡佳倚. "A highly selective and sensitive fluorescence assay for determination of copper(II) and cobalt(II) ions in environmental water and toner samples." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/43333267608612756386.

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碩士<br>國立彰化師範大學<br>化學系<br>101<br>In this study, a highly selective and sensitive fluorescence assay has been proposed for the determination of copper(II) and cobalt(II) ions in environmental water and toner samples. In the presence of hydrogen peroxide, copper(II) reacted with a new fluorescence reagent Amplex® UltraRed (AUR), forming a fluorescence product only at pH 7.0, while the fluorescence product of cobalt(II) with AUR formed only at pH 9.0. The fluorescence signal obtained was linear with respect to the copper(II) concentration over the range of 1.6–12.0 μM (R2 = 0.988) and was linear w

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Book chapters on the topic "Gravimetric determination of Copper(II)"

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Alieva, F. S. "DETERMINATION OF COPPER (II) IN THE ENVIRONMENTAL OBJECTS." In To the 100th anniversary of I.G. Yudelevich. Works of analytical chemists. NIIC SB RAS, 2020. http://dx.doi.org/10.26902/udl2020_02.

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"Solvent-assisted dispersive solid-phase extraction for copper determination." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.8.4.

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The solvent-assisted dispersive solid-phase extraction SA-DSPE method is very similar to dispersive liquid-liquid microextraction (DLLME) [1]: (a) both are based on the emergence of a cloudy or dispersive state of acceptor phase, and subsequently separated by centrifugation; as well as the fact that (b) the extraction efficiency is influenced by the quality of the dispersion formed; (c) both are considered as miniaturized extraction technique, since milligram amounts of sorbent (SA-DSPE) or microliter volumes of extraction solvent (DLLME) are used; and (d) they do not have a “memory effect”, s

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3

Echabaane, Mosaab, and Chérif Dridi. "Development of An Impedimetric Nanoplatform for Cu(II) Detection Based on Carbon Dots and Chitosan Nanocomposite." In Frontiers in Voltammetry. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.105924.

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In this chapter, an impedemitric sensor based on carbon dots (CDs) and chitosan (CS) nanocomposite for Cu (II) detection has been studied. The synthesized carbon dots were characterized by TEM, FTIR, XRD, UV-visible, and PL. The obtained carbon dot/chitosan/GCE structure was characterized by scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The behavior, interface processes of GCE/electrolyte, and sensor properties of the studied structures were investigated. In particular, the performance of the proposed impedimetric sensor to Cu ions, such as sensitivity, d

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Conference papers on the topic "Gravimetric determination of Copper(II)"

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Hassoni, Ahmed Abd Ali, and Ahmed S. Abbas. "Cloud point extraction for the determination of copper (II) by UV-visible spectrophotometry." In 3RD INTERNATIONAL SCIENTIFIC CONFERENCE OF ALKAFEEL UNIVERSITY (ISCKU 2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0066811.

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Fang, GuiJie, WeiHong Xie, and AnZi Ding. "Electrochemical Determination of Reductive Glutathione with Copper (II) or Chromium (VI)." In 2010 International Conference on Biomedical Engineering and Computer Science (ICBECS). IEEE, 2010. http://dx.doi.org/10.1109/icbecs.2010.5462379.

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Cui, Yanping, and Changzhu Yang. "Electrochemical Determination of Copper (II) Based on Three-Dimensional L-Cysteine Monolayer Assembled on Gold Nanoparticles." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162761.

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S. Dimitrijević, Milan. "On the Stark broadening of spectral lines of ionized copper." In International scientific conference: Meeting on new trends in Astronomy & Earth Observation. Scientific Society Isaac Newton Belgrade, 2024. https://doi.org/10.69646/aob241201.

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Abstract: Atomic data are of great importance for modelling and investigations of different plasmas in astronomy, laboratory and technology. In particular, Stark broadening data or data on widths and shifts of spectral lines broadened by collisions with charged particles are needed in a number of different topics, like in astrophysics, for inertial fusion experiments, laser design and development, laser-produced plasma research, different plasmas in technology and industry etc. Stark broadening data for lines of onized copper are needed for example for diagnostics, spectral analysis, modelling

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Wielage, B., and K. Fleischer. "Electron Beam Post-Treatment of Coatings Plasma Sprayed Onto Magnesium Alloys." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p1449.

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Abstract Magnesium alloys are widely used as light-weight metals in the field of automotive engineering (1,2). However, there are some disadvantages regarding the wear and corrosion behaviour of these materials. Therefore, the surface treatment of Mg-alloys is an important process to extend the industrial use of magnesium (3,4). Beside the laser technology one of the innovative processes for the improvement of the surface properties of Mg is the electron beam technology. Results of the manufacture of wear resistant coatings plasma-sprayed onto magnesium and a subsequent electron beam treatment

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