Log in

Relevant bibliographies by topics / Anodic stripping voltammtry / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Anodic stripping voltammtry.

Dissertations / Theses on the topic 'Anodic stripping voltammtry'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 45 dissertations / theses for your research on the topic 'Anodic stripping voltammtry.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Hadjichari, Andrew Michael, University of Western Sydney, and School of Civic Engineering and Environment. "Determination of heavy metals on macro- and micro-electrodes by adsorptive cathodic stripping voltammetry and anodic stripping voltammetry." THESIS_XXXX_CEE_Hadjichari_A.xml, 1999. http://handle.uws.edu.au:8081/1959.7/602.

Full text

Abstract:

This thesis describes the application of macro, micro, ultra-microelectrodes and microelectrode arrays to the measurement of trace concentrations of nickel and cobalt in sediment and natural waters by adsorptive cathodic stripping voltammetric methods. In addition the measurement of tin by adsorptive cathodic stripping voltammetry in sediment and natural waters is discussed. Also, the application of macroelectrodes and microelectrode arrays to the measurement of lead, cadmium and zinc in sediment and natural waters by anodic stripping voltammetry is considered. In all cases the determination o

APA, Harvard, Vancouver, ISO, and other styles

2

Hadjichari, Andrew Michael. "Determination of heavy metals on macro- and micro-electrodes by adsorptive cathodic stripping voltammetry and anodic stripping voltammetry /." View thesis, 1999. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030828.122855/index.html.

Full text

Abstract:

Thesis (Ph. D) -- University of Western Sydney, Nepean, 1999.<br>A thesis presented for the degree of Doctor of Philosophy, Centre for Electrochemical Research and Analytical Technology, University of Western Sydney, Nepean. Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

3

Gonçalves, Vivia Ruth Abrantes. "DETERMINAÇÃO SIMULTÂNEA DE METAIS EM ÁLCOOL COMBUSTÍVEL UTILIZANDO VOLTAMETRIA DE REDISSOLUÇÃO ANÓDICA EM MEIO ÁCIDO." Universidade Federal do Maranhão, 2008. http://tedebc.ufma.br:8080/jspui/handle/tede/891.

Full text

Abstract:

Made available in DSpace on 2016-08-19T12:56:30Z (GMT). No. of bitstreams: 1 Vivia Ruth Abrantes Goncalves.pdf: 252235 bytes, checksum: 3bf6fe972171ed66057ab5014847e3d9 (MD5) Previous issue date: 2008-02-12<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Brazil is pioneering in the use of ethanol as combustible. It is a renewable fuel that is contributing for to reduce the levels of CO2 emission in the atmosphere, but that present contaminant such as Zn, Cu, Cd, Fe, Cl, Ni, Co e Pb metals. The presence of heavy metals in fuel ethanol is obtained in different steps as pr

APA, Harvard, Vancouver, ISO, and other styles

4

Manwaring, Howard Stephen. "The application of neural networks to anodic stripping voltammetry to improve trace metal analysis." Thesis, University of Hertfordshire, 1995. http://hdl.handle.net/2299/14150.

Full text

Abstract:

This thesis describes a novel application of an artificial neural network and links together the two diverse disciplines of electroanalytical chemistry and information sciences. The artificial neural network is used to process data obtained from a Differential Pulse Anodic Stripping (DPAS) electroanalytical scan and produces as an output, predictions of lead concentration in samples where the concentration is less than 100 parts per billion. A comparative study of several post analysis processing techniques is presented, both traditional and neural. Through this it is demonstrated that by usin

APA, Harvard, Vancouver, ISO, and other styles

5

Verbickas, Rolandas. "Investigation of heavy metal determination using electroanalytical stripping analysis." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140123_101755-89330.

Full text

Abstract:

In this work the gallium and bismuth film plating in situ and ex situ processes were investigated. The metal film plating conditions for determination of heavy metals in water samples were optimized. When depositing Bi films on glassy carbon electrode it was found, that the addition of Br-1 changes the BiFE morphology making it more uniform and forming crystalline aggregates. The reoxidation peak of Bi was shifted to more negative potentials showing the electrocatalytic effect of bromide for the bismuth film. The addition of the other metal ions to the deposition solutions caused changes in th

APA, Harvard, Vancouver, ISO, and other styles

6

Silwana, Bongiwe. "Graphene supported antimony nanoparticles on carbon electrodes for stripping analysis of environmental samples." University of the Western Cape, 2015. http://hdl.handle.net/11394/5141.

Full text

Abstract:

>Magister Scientiae - MSc<br>Platinum Group Metals (PGMs), particularly palladium (Pd), platinum (Pt) and rhodium (Rh) have been identified as pollutants in the environment due to their increased use in catalytic converters and mining in South Africa (as well as worldwide). Joining the continuous efforts to alleviate this dilemma, a new electrochemical sensor based on a nanoparticle film transducer has been developed to assess the level of these metals in the environment. The main goal of this study was to exploit the capabilities of nanostructured material for the development and application

APA, Harvard, Vancouver, ISO, and other styles

7

Martin, Tayla. "Determination of Thallium and Indium with an Electrochemically-reduced Graphene Oxide-Carbon Paste Electrode by Anodic Stripping Voltammetry." University of the Western Cape, 2018. http://hdl.handle.net/11394/6433.

Full text

Abstract:

Magister Scientiae - MSc (Chemistry)<br>In this study, graphene oxide was synthesized by oxidizing graphite using the modified Hummer's method. The graphene oxide was characterized by Raman Spectroscopy, Fourier Transform Infrared Spectroscopy, High Resolution Transmission Electron Microscopy, Scanning Electron Microscopy and X-Ray Diffraction for structural and morphological properties. The graphene oxide was electrochemically reduced on a carbon paste electrode followed by the in situ deposition of mercury thin films to achieve electrochemically reduced graphene oxide modified carbon paste m

APA, Harvard, Vancouver, ISO, and other styles

8

Wilson, Robert. "Spectroelectrochemical Sensing and Detection of Zinc in Serum by Anodic Stripping Voltammerty on a Bismuth Film Electrode." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307320210.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Jahed, Mohammed Nazeem. "The application of differential pulse anodic stripping voltammetry for the determination of copper, lead, zinc and cadmium in airborne particulate matter." Thesis, [S.l. : s.n.], 1995. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1007&context=td_ptech.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Pokpas, Keagan William. "Graphene-modified pencil graphite bismuth-film electrodes for the determination of heavy metals in water samples using anodic stripping voltammetry." University of the Western Cape, 2013. http://hdl.handle.net/11394/4829.

Full text

Abstract:

>Magister Scientiae - MSc<br>Electrochemical platforms were developed based on pencil graphite electrodes (PGEs) modified with electrochemically deposited graphene (EG) sheets and Nafion-graphene (NG) nanocomposites in conjunction with an in situ plated bismuth-film (EG-PG-BiE and NG-PG-BiE). The EG- and NG-PG-BiEs were used as sensing platforms for determining Zn2+, Cd2+ and Pb2+ by square wave anodic stripping voltammetry (SWASV). EG sheets were deposited onto pencil graphite electrodes by cyclic voltammetric reduction from a graphene oxide (GO) solution, while a dip coating method was used

APA, Harvard, Vancouver, ISO, and other styles

11

Zerhusen, Benjamin. "Third Generation Point-of-Care Device for Quantification of Zinc in Blood Serum." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1504787278462965.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Verbickas, Rolandas. "Sunkiųjų metalų inversinio elektroanalizinio nustatymo tyrimai." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140123_101808-49901.

Full text

Abstract:

Šiame darbe tiriama galio ir bismuto plėvelinių elektrodų formavimo in situ ir ex situ metodais ypatumai skirtingose sistemose. Optimizuotos bismuto ir galio plėvelinių elektrodų panaudojimo sąlygos sunkiųjų metalų koncentracijos nustatymui. Atliekant bismuto plėvelės nusodinimą ant stikliškosios anglies elektrodo nustatyta, kad papildomas Br- pridėjimas į tiriamąjį tirpalą keičia bismuto plėvelės morfologines savybes ir formuojasi tolygesnė bismuto plėvelė sudarydama kristalines struktūras. Reoksidacinė bismuto smailė pasislenka į neigiamesnių potencialo verčių pusę, kas rodo elektrokatalizin

APA, Harvard, Vancouver, ISO, and other styles

13

MIGUEL, ELIANE MONSORES. "DETERMINATION OF LEAD IN KEROSEN AND IN LUBRICATING OIL BY ANODIC STRIPPING VOLTAMMETRY USING BISMUTH-FILM ELECTRODE AND SAMPLE PREPARATION AS MICROEMULSION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12247@1.

Full text

Abstract:

CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Neste trabalho foi desenvolvida uma metodologia analítica visando determinar chumbo em querosene e em óleo lubrificante. A voltametria de redissolução anódica com o eletrodo de filme de bismuto (BiFE) foi empregada com a medição do analito nas amostras realizada em meio microemulsionado. O modo de varredura utilizado foi o de onda quadrada (SWV) sendo o desempenho do BiFE comparado com o desempenho observado com o uso do eletrodo de gota pendente de mercúrio (HMDE), este tradicionalmente utilizado nas análises voltamétricas de me

APA, Harvard, Vancouver, ISO, and other styles

14

Valle, Eliana Maíra Agostini. "Estudos eletroquímicos da interação de íons metálicos com os pesticidas Thiram e Picloram." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75132/tde-07102009-101012/.

Full text

Abstract:

Nos dias de hoje um grande número de pesticidas é utilizado em colheitas, agricultura, transporte de sementes, entre outros. Esses pesticidas são moléculas orgânicas que apresentam em sua estrutura grupos funcionais capazes de formar ligações com íons metálicos, que de forma natural ou por intervenção humana, são encontradas no solo. Estas espécies entram em contato no meio ambiente, e assim, interagem formando ligações, dando forma aos chamados compostos de coordenação, ou complexos. A formação destes complexos pode alterar significativamente as propriedades dos pesticidas e dos íons metálic

APA, Harvard, Vancouver, ISO, and other styles

15

Pei, Xing. "Copper-based Point-of-care Sensor for Heavy Metal Determination in Public Health." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439309640.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Nguyen, Thi Ngoc Huyen. "Electrode modification based on electrochemical grafting with p-carboxybenzene diazonium couple with an in situ deposition of bismuth for detection of lead and cadmium using square wave anodic stripping voltammetry." Thesis, Umeå universitet, Kemiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160036.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Prado, Fernanda Scavassa Ribeiro do. "Preparação, caracterização e testes de eletrodo modificado com filme de bismuto para aplicação na análise voltamétrica de metais pesados." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-10122014-105152/.

Full text

Abstract:

Devido à alta toxicidade do mercúrio, os eletrodos contendo este metal vêm sendo substituídos por eletrodos modificados, dentre eles o filme de bismuto (f-Bi) tem demonstrado ser uma boa alternativa, pois apresentam comportamento e desempenho semelhante aos eletrodos de mercúrio, além de baixa toxicidade. A fim de se determinar os metais Cd2+ e Pb2+ em amostras de água do Rio Tietê, um eletrodo de f-Bi depositado de forma ex situ foi desenvolvido. As condições para a formação do f-Bi foram otimizadas e as melhores condições foram alcançadas utilizando uma solução de tampão acetato 0,2 mol L-1

APA, Harvard, Vancouver, ISO, and other styles

18

Akers, David Bradlee. "Lead (Pb) Contamination of Water Drawn from Pitcher Pumps in Eastern Madagascar." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/4975.

Full text

Abstract:

Access to safe water supply--a major determinant of public health--is less than 50% in Madagascar, and access to piped, treated water remains out of reach financially for many in the urban and peri-urban areas where available. The Self-supply option of the Pitcher Pump has been meeting the need for household water in coastal areas of Madagascar since the early 1960s and has proven a sustainable option for many. These pumps make use of leaded components in the construction, however, which may pose a health risk for heavy metal intoxication and therefore cause the water to be unsafe for drinking

APA, Harvard, Vancouver, ISO, and other styles

19

Willemse, Chandre Monique. "Nanocomposite-graphene based platform for heavy metal detection." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8123_1323852117.

Full text

Abstract:

This study reports the synthesis of graphene by oxidizing graphite to graphite oxide using H2SO4 and KMnO4 and reducing graphene oxide to graphene by using NaBH4. Graphene was then characterized using FT-IR, TEM, AFM, XRD, Raman spectroscopy and solid state NMR. Nafion-Graphene in combination with a mercury film electrode, bismuth film electrode and antimony film electrode was used as a sensing platform for trace metal analysis in 0.1 M acetate buffer (pH 4.6) at 120 s deposition time, using square-wave anodic stripping voltammetry (SWASV). Detection limits were calculated using 3Ïblank/slope

APA, Harvard, Vancouver, ISO, and other styles

20

Hussain, Noor Feuza. "Electrochemical Remedy and Analysis for the Environment Based on the New Polymer-DNA Composite Material." Digital Commons @ East Tennessee State University, 2005. https://dc.etsu.edu/etd/1047.

Full text

Abstract:

In this work a new material, the conducting polymer-DNA composite, has been reported for the first time due to its promise in micro extraction, transfer, and release of cations under controlled potential conditions by using electrochemically assisted solid phase micro extraction (SPME). The Polypyrrole/DNA composite can be formed easily by oxidation of pyrrole monomers in the presence of chromosomal DNA by electropolymerization. Environmental significant pollutants such as Cd, Pb, Hg, Co, Zn, Cu, and Bi metal ions can be extracted from the aqueous solution and are able to be transferred to ano

APA, Harvard, Vancouver, ISO, and other styles

21

Fonseca, Wilson Tiago da. "Determinação voltamétrica de zinco empregando eletrodos quimicamente modificados com bismuto." Universidade Federal de Uberlândia, 2016. https://repositorio.ufu.br/handle/123456789/17599.

Full text

Abstract:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Esta dissertação apresenta o desenvolvimento de métodos voltamétricos para a determinação de zinco em amostras comerciais de polivitamínicos, talco e materiais artísticos para pintura (giz pastel) combinando uma extração alcalina com solução aquosa de NaOH 1,0 mol L-1 e eletrodos quimicamente modificados com bismuto. Foram utilizados dois eletrodos para a quantificação de zinco nas amostras, eletrodo de filme de bismuto (BiFE) crescidos in situ sobre carbono vítreo e eletrodo de pasta de carbono quimicamente modificado com a resina

APA, Harvard, Vancouver, ISO, and other styles

22

Chivot, Jacques. "1) la chronopotentiometrie par redissolution chimique : 2) electrochimie en milieu biphasique." Paris 6, 1988. http://www.theses.fr/1988PA066671.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Medeiros, Cleilson Lucena de. "Determinação simultânea de Cd, Pb e Cu em amostras de chá (Camellia sinensis) por voltametria de onda quadrada e redissolução anódica." Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/8169.

Full text

Abstract:

Submitted by Maike Costa (maiksebas@gmail.com) on 2016-05-04T13:53:54Z No. of bitstreams: 1 arquivo total.pdf: 4473867 bytes, checksum: e3130e71f9f870684d06304ce755007d (MD5)<br>Made available in DSpace on 2016-05-04T13:53:54Z (GMT). No. of bitstreams: 1 arquivo total.pdf: 4473867 bytes, checksum: e3130e71f9f870684d06304ce755007d (MD5) Previous issue date: 2015-08-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>This paper describes the development of a method for quantification Cd2+, Pb2+ and Cu2+ cations, in teas, performed simultaneously, using Square Wav

APA, Harvard, Vancouver, ISO, and other styles

24

Honório, Gláucio Gualtieri. "Quantificação de cobre, cádmio, chumbo e zinco em mel por voltametria de pulso diferencial com eletrodo de diamante dopado com boro." Universidade Federal de Juiz de Fora, 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/1070.

Full text

Abstract:

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-03-31T12:15:22Z No. of bitstreams: 1 glauciogualtierihonorio.pdf: 2076153 bytes, checksum: 5da73e6a28cee53b63fa855e4efb6984 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-04-24T02:56:41Z (GMT) No. of bitstreams: 1 glauciogualtierihonorio.pdf: 2076153 bytes, checksum: 5da73e6a28cee53b63fa855e4efb6984 (MD5)<br>Made available in DSpace on 2016-04-24T02:56:41Z (GMT). No. of bitstreams: 1 glauciogualtierihonorio.pdf: 2076153 bytes, checksum: 5da73e6a28cee53b63fa855e4efb6984 (MD5) Pr

APA, Harvard, Vancouver, ISO, and other styles

25

Maluf, João Carlos Cattini. "Estudo dos metais traço (zinco, cádmio e chumbo) em duas regiões do complexo estuarino-lagunar de Cananéia-Iguape(SP) sob diferentes pressões antrópicas." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/21/21133/tde-02082011-111452/.

Full text

Abstract:

Os setores sul e norte do complexo estuarino lagunar de Cananéia-Iguape, sujeitos a diferentes pressões antrópicas, foram estudados quanto às características hidrológicas e hidroquímicas das águas de superfície e fundo, com ênfase às concentrações de zinco, cádmio e chumbo dissolvidos. A amostragem contou com coletas espaciais e temporais, em dois períodos sazonais (outono e primavera) de 2007. Os metais estudados foram: o zinco, devido ação tóxica ou como micronutriente, dependendo de sua concentração, o cádmio e o chumbo, considerados sem função biológica positiva conhecida e com alto grau d

APA, Harvard, Vancouver, ISO, and other styles

26

Ribeiro, Luiz Fernando. "Determinação simultânea de Cu(II), Pb(II), Cd(II) e Zn(II) em águas e sedimentos usando análise por injeção sequencial (SIA) com detecção voltamétrica." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-21012015-091318/.

Full text

Abstract:

Esta dissertação descreve o desenvolvimento de uma metodologia de determinação de Cu(II), Pb(II), Cd(II) e Zn(II) em amostras ambientais por voltametria de redissolução anódica (ASV) automatizada com sistema de Análise por Injeção Sequencial (SIA). Sensores impressos com o eletrodo de trabalho de filme fino de mercúrio foram utilizados em uma cela de fluxo. As determinações foram feitas por adição de padrão, com o sistema SIA fazendo a diluição em linha da solução padrão de referência e formando na bobina coletora e auxiliar um segmento contendo as zonas de amostra, solução padrão e solução de

APA, Harvard, Vancouver, ISO, and other styles

27

Almeida, Joseany de Moraes Santos. "PROCEDIMENTO ELETROANALÍTICO PARA DETERMINAÇÃO DE CÁLCIO EM BIODIESEL." Universidade Federal do Maranhão, 2013. http://tedebc.ufma.br:8080/jspui/handle/tede/980.

Full text

Abstract:

Made available in DSpace on 2016-08-19T12:56:46Z (GMT). No. of bitstreams: 1 Dissertacao Joseany.pdf: 1293821 bytes, checksum: c1a750664ab89568783ec0c6aa91c9b1 (MD5) Previous issue date: 2013-06-05<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Metal traces are often detected in biodiesel samples due to its presence in the raw materials or solubilization during its manufacturing. Thus, this work aims to propose an electroanalytical methodology for the direct determination of Ca²⁺ in biodiesel using with a glassy carbon electrode. The metal quantification was developed ac

APA, Harvard, Vancouver, ISO, and other styles

28

Zabumba, Dário Filipe Veiga. "Análise quimiométrica aplicada à determinação voltamétrica de compostos de tributilestanho em amostras biológicas e não-biológicas." Master's thesis, Universidade de Évora, 2011. http://hdl.handle.net/10174/15198.

Full text

Abstract:

O tributilestanho é uma espécie química que tem demonstrado ser altamente tóxica para organismos vivos. É utilizado em tintas anti-incrustantes, aplicadas sobretudo no revestimento de cascos de embarcações e outras estruturas marinhas com o objectivo de evitar a deposição de organismos vivos. O tributilestanho, tal como os seus derivados, apresenta um comportamento muito complexo, nomeadamente no que respeita à determinação e quantificação através de métodos electroquímicos. Este trabalho apresenta uma nova abordagem, aliando a voltametria de onda quadrada de redissolução anódica a redes neuro

APA, Harvard, Vancouver, ISO, and other styles

29

Henríquez, Hernández Camelia. "Métodos automáticos de análisis para la determinación de parámetros de interés ambiental." Doctoral thesis, Universitat de les Illes Balears, 2013. http://hdl.handle.net/10803/123276.

Full text

Abstract:

El incremento del vertido de sustancias contaminantes al medio ambiente, debido al desarrollo industrial y los malos hábitos de consumo, han provocado la ruptura del equilibrio de muchos ecosistemas llegando afectar, en muchas ocasiones, a los humanos. Con el objetivo de controlar y disminuir estos efectos, los gobiernos han dirigido acciones para legislar y regular el vertido de sustancias tóxicas al medio. De esta manera el Gobierno Nacional de España ha financiado a nuestro grupo de investigación, el proyecto del Plan Nacional en Ciencia y Tecnología Química titulado “Desarrollo de mé

APA, Harvard, Vancouver, ISO, and other styles

30

Chin, Chih-Huang, and 秦智皇. "The application of anodic stripping voltammetry to determine the copper concentration in soils." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/54588391898607012582.

Full text

Abstract:

碩士<br>朝陽科技大學<br>環境工程與管理系碩士班<br>95<br>Abstract Electrochemical method has been applied as an innovative technique to investigate environmental substances. For measuring the amount of heavy metals, electrochemistry possesses advantages different from those of atomic adsorption spectrometry (AAS) and induced coupled plasma (ICP). Electrochemistry is easier to be controlled, smaller size of equipment, less capitalization, and more reliable analyses. As a consequence, Electrochemistry becomes an alternative among environmental-determining means. This research focuses on one of electrochemical me

APA, Harvard, Vancouver, ISO, and other styles

31

Chen, Wan-Ling, and 陳婉玲. "Preconcentration of trace metals in seawater matrix for differential pulse anodic stripping voltammetry." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/49681736491346816233.

Full text

Abstract:

碩士<br>國立清華大學<br>原子科學研究所<br>81<br>A two-step preconcentration procedure is proposed to be used in conjuction with differential pulse anodic stripping voltammetry for the determination of tracer metals in seawater. The two-step preconcentration involves extraction of trace metals from seawater with L,L-ethyl- enedicysteine diethylester (ECD) into chloroform followed by backextraction with a Hg(Ⅱ) solution. The extraction could concentration the trace metals by forming a chelat

APA, Harvard, Vancouver, ISO, and other styles

32

ZHENG, LI-REN, and 鄭立仁. "Determination of heavy metals in river water by differential pulse anodic stripping voltammetry." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/81989136563866100344.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Chen, Ching-Chong, and 陳慶昌. "Study of heavy metals'complexing capacity in the estarine environment by anodice stripping voltammetry." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/10479517686156839072.

Full text

Abstract:

碩士<br>文化大學<br>應用化學系<br>85<br>Speciation of Zinc,Cadmium and Lead ions in the surface water of erhjen river,estuarine and coastal areas is studied by differential pulse anodic stripping voltammetry (DPASV). Colloidal and truly dissolved phases trace metals from the water of a highly polluted estuarine and coastal environment (The Erhjen river) have been separated by a cross-flow ultrafiltration device.The distributions of Cadmium,Zinc and Lead between colloid and truly solution were 17.7%~2

APA, Harvard, Vancouver, ISO, and other styles

34

Tatum, Clarissa E. "Novel Electrochemical Detections of Biologically and Environmentally Relevant Substances." 2010. http://trace.tennessee.edu/utk_graddiss/918.

Full text

Abstract:

Development and studies of new electrochemical methods for the detection of various biologically and environmentally relevant substances are the focus of this dissertation. A dual amperometric sensor, capable of the simultaneous, real-time determination of NO and O,2, has been developed and optimized. Many tests were performed in order to reduce cross-talking between the two sensors, and an electro-deposited polymer, poly-5-amino-1-naphthol, was shown to reduce the cross-talking to insignificant levels. The use of bismuth-based electrodes in the detection of various metals has been explored

APA, Harvard, Vancouver, ISO, and other styles

35

Chiu, Yi-Chi, and 邱義琦. "Electrochemical Detection of Heavy Metals by Differential Pulse Anodic Stripping Voltammetry on Bismuth Thin Film Electrodes." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/gfha4b.

Full text

Abstract:

碩士<br>國立臺灣大學<br>化學工程學研究所<br>105<br>For trace metal analysis, electroanalytical methods offer several advantages over spectroscopies: simplicity, low cost and possibility of in-field application. Although the mercury thin film electrode and hanging mercury drop electrode are highly sensitive and selective, mercury is a highly toxic metal. Bismuth has been known as an environmentally friendly material which can be metabolized by human body, so nowadays bismuth thin film electrodes have become alternative material for electrochemical analysis. In this study, bismuth thin film electrodes were fabr

APA, Harvard, Vancouver, ISO, and other styles

36

ZHANG, CHAO-MIN, and 張朝明. "Trace determination of lead and cadmium by flow injection analysis-anodic stripping voltammetry and it's automation." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/22321250976488461496.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Zbeda, Salma Gumaa Amar. "Multilayer graphene modified metal film electrodes for the determination of trace metals by anodic stripping voltammetry." 2013. http://hdl.handle.net/11394/3802.

Full text

Abstract:

Magister Scientiae - MSc<br>In this study multilayer graphene nanosheets was synthesize by oxidizing graphite to graphene oxide using H2SO4 and KMnO4 followed by reduction of graphene oxide to graphene using NaBH4. The graphene nanosheets were characterized by Fourier Transform Infrared (FTIR) and Raman spectroscopy, high resolution transmission electron microscopy (HRTEM), Scanning electron microscopy (SEM) and X-ray diffraction (XRD). HRTEM images showed that the multilayer graphene were obtained. The graphene was immobilized directly onto a glassy carbon electrode using the drop coating tec

APA, Harvard, Vancouver, ISO, and other styles

38

Lee, Arthur Foreman. "The application of anodic-stripping voltammetry to the determination of trace elements in standard reference materials." Thesis, 2015. http://hdl.handle.net/10210/14920.

Full text

Abstract:

Ph.D. (Chemistry)<br>Materials that are to be used as reference samples are frequently analysed using costly and sophisticated instrumentation, itself calibrated with similar certified standards. Analytical programmes using such instrumentation are only as accurate as the initial calibrations, and their poor results have led to the adoption by the United States National Bureau of Standards of definitive methods of analysis for the determination cf trace elements ...

APA, Harvard, Vancouver, ISO, and other styles

39

Twork, John V. "STUDIES ON THE APPLICATION OF ANODIC STRIPPING VOLTAMMETRY TO THE CHARACTERIZATION OF TOXIC METALS (ADSORPTION, COMPLEXATION, COPPER, GRAPHITE ELECTRODE)." 1986. http://books.google.com/books?id=zsY9AAAAMAAJ.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Tsai, Shi Jou, and 蔡西洲. "L,L-Ethylenedicysteine Diethylester Extraction and Au(III) Back Extraction for Determination of Mercury by Differential Pulse Anodic Stripping Voltammetry." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/00201136581627493260.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Lee, Jun-Der, and 李俊德. "Preconcentration by Two-step Extraction Coupled with Anodic Stripping Voltammetry for Determination of Trace Metals in Environmental Waters and Biological Samples." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/56544530146179258622.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Wahang, Chia-Chi, and 張佳琦. "Determination of Cd(II) by square wave anodic stripping voltammetry using graphene oxide/single-walled carbon nanotubes/Bi2Te3 modified glassy carbon electrode." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/b6x74h.

Full text

Abstract:

碩士<br>國立中央大學<br>環境工程研究所<br>107<br>Cadmium is highly toxic and ingestion by humans may harm to humans, such as bone, kidney function, and respiratory system. At present, the method of analyzing heavy metals require pretreatment and long time so it cannot give the results of water quality promptly. However, electrochemical voltammetry is valued due to its advantages of convenient operation, low cost, simplicity and rapid analysis. In this study, determination of Cd(II) by square wave anodic stripping voltammetry using graphene oxide/single-walled carbon nanotubes/Bi2Te3 modified glassy carbon el

APA, Harvard, Vancouver, ISO, and other styles

43

Mahar, Maura. "Improvement to sample introduction in plasma spectrochemistry with biological and environmental applications and potential for arsenic speciation in waters by anodic stripping voltammetry." 2008. https://scholarworks.umass.edu/dissertations/AAI3325138.

Full text

Abstract:

Methods for the determination of trace elements in environmental and biological samples were developed and optimized. Parameters affecting sample introduction efficiency, matrix effects, sample throughput and tolerance to interfering species were evaluated for methods based on plasma spectrochemistry and electrochemistry. A method was developed for the determination of copper in the presence of β-2-microglobulin. A mass balance of copper was performed at the end of in vitro incubations which required method development to quantify copper in the liquid and solid portions of the incubation solut

APA, Harvard, Vancouver, ISO, and other styles

44

Παντελή, Βασιλική. "Μεταβολές των ανόργανων οφθαλμικών συστατικών στο σύνδρομο της ψευδοαποφολίδωσης". Thesis, 2011. http://hdl.handle.net/10889/5269.

Full text

Abstract:

Σκοπός της μελέτης ήταν ο ποσοτικός προσδιορισμός των ιχνοστοιχείων βαρέων μετάλλων του ψευδαργύρου, καδμίου και χαλκού στο υδατοειδές υγρό ασθενών με ψευδοαποφολίδωση και η μέτρηση του δυναμικού οξειδοαναγωγής στο υδατοειδές αυτών των ασθενών. Υλικό και μέθοδοι: Δείγματα υδατοειδούς υγρού ελήφθησαν κατά την εγχείρηση καταρράκτη από 14 ασθενείς με PEX σύνδρομο (7 άνδρες και 7 γυναίκες) και 21 ασθενείς με καταρράκτη αλλά χωρίς PEX (9 άνδρες και 12 γυναίκες). Τα δείγματα διατηρήθηκαν στους -24C μέχρι την ανάλυση. Τα επίπεδα των τριών μετάλλων και στις δύο ομάδες προσδιορίστηκαν, για πρώτη φορά

APA, Harvard, Vancouver, ISO, and other styles

45

Самкова, И. А., та I. A. Samkova. "Разработка электрохимического сенсора для определения грамм-положительных бактерий staphylococcus aureus в модельных суспензиях : магистерская диссертация". Master's thesis, 2016. http://hdl.handle.net/10995/44387.

Full text

Abstract:

Объектом исследования являются бактерии Staphylococcus aureus в модельных суспензиях. Цель работы— апробация разработанных алгоритмов определения Staphylococcus aureus с использованием электрохимической системы на основе бесферментных электрохимических иммуносенсоров в модельных суспензиях. Определение чувствительности микробной флоры к антибактериальному препарату.В процессе работы должны быть проведены исследования синтезированных наночастиц магнетита, изучен характер электропревращений модифицированных наночастиц. Должен быть осуществлен выбор рабочего электрода и оптимальных условий анали

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!