Nobody downloaded yet

Electroanalytical Technique (Voltammetric techniques) critical - Literature review Example

Comments (1) Cite this document
Summary
In voltammetry, various electrochemical techniques congregate such as linear sweep voltammetry (LSV), pulse techniques, among others. Voltammetry analysis samples by measuring current as a function of applied electrical potential. …
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.4% of users find it useful
Electroanalytical Technique (Voltammetric techniques) critical review
Read TextPreview

Extract of sample
"Electroanalytical Technique (Voltammetric techniques) critical"

Download file to see previous pages When compared to methods such as chromatography which uses relatively large amounts of sample with low sensitivity, voltammetry techniques will require few amounts of sample while affording high sensitivity. In addition, wide range of concentration can be used in voltammetry. Voltammetric techniques reduces ions at the electrodes which are usually three the working electrode, auxiliary electrode and reference electrode. Given such wide capabilities, voltametric techniques have been amenable to use in biochemical analyses, environmental studies, plating analysis, pharmaceuticals as well as waste water analyses among other useful applications.
Instrumentation
In voltammetry basic instruments include the electrochemical cell composed of a three electrodes configuration; a voltamperomeric analyser formed by the potentiostat coupled to a computer system. Working electrode provides the response of the analyte response due to the applied potential. Examples of electrode include mercury electrodes such as Hanging drop mercury electrode (HDME), static drop mercury electrode (DME) and rotating disk electrodes (RDE).Auxiliary electrode is tasked with completing the circuit between the potentiostat and working electrode and examples include platinum and glassy carbon electrodes. Reference potential to the auxiliary and working electrodes is provided by the reference electrodes e.g. Ag/AgCl in KCl and Hg/HgCl in KCl(l).
Drugs analysis applies various separation-based techniques such as chromatography and electrophoresis. These techniques are important when following-up metabolism of the drug in complex samples such as urine. However, electroanalytical methods such as voltammetry become vital when samples being analysed contain a single physiologically active component such as the active ingredient in a particular drug. Electroanalytical methods offer advantages such as simple handling of the procedures, high sensitivity, better accuracy and faster speed relative to separation techniques – chromatography and electrophoresis. They also utilise cheaper instrumentation and low cost chemicals. Two electroanalytical techniques exist with the first one being where the surfaces of electrodes are continuously renewed for instance in the dropping mercury electrode. Techniques employing this type of electrode are called polarography and they mainly differ in the approach of application of voltage to the dropping mercury electrode (DME). The second class of techniques belong to techniques which use electrodes whose surfaces are not renewed. Common electrodes in this group include the hanging mercury drop electrode (HMDE). Techniques that record current-voltage curves with these electrodes are referred to voltammetry. Voltammetric Techniques Voltammetric methods have been used in the determination of trace levels of platinum group metals which have traditional employed spectroscopic methods in their determination (Locateli, 2007). Such metals include Osmium, Ruthenium and Iridium. One of the approaches used in determination of these metals is the differential pulse voltammetry (DPV). The electrodic processes associated with platinum group metals (PGMs); however, present challenges such as the low reversibility degree thereby limiting detection of these trace metals (Kritsotakis et al., 1985). Presented with such challenge of detection limits, some methods have been worked out to concentrate these trace metals onto the working electrode. One technique which has been developed is the adsorptive ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Electroanalytical Technique (Voltammetric techniques) critical review Literature”, n.d.)
Electroanalytical Technique (Voltammetric techniques) critical review Literature. Retrieved from https://studentshare.org/chemistry/1448147-electroanalytical-technique-voltammetric
(Electroanalytical Technique (Voltammetric Techniques) Critical Review Literature)
Electroanalytical Technique (Voltammetric Techniques) Critical Review Literature. https://studentshare.org/chemistry/1448147-electroanalytical-technique-voltammetric.
“Electroanalytical Technique (Voltammetric Techniques) Critical Review Literature”, n.d. https://studentshare.org/chemistry/1448147-electroanalytical-technique-voltammetric.
  • Cited: 0 times
Comments (1)
Click to create a comment or rate a document
ta
tavarescrooks added comment 7 months ago
Student rated this paper as
I didn’t know how to start my document. "Electroanalytical Technique (Voltammetric techniques) critical review" helped me out a lot! Especially the list of resources was valuable.
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Critical Literature Review
Although, there is no universal definition for SMEs and businesses are usually gauged in terms of turnover and number of employees to define their size and nature of business. In United Kingdom a small enterprise is supposed to comprise of maximum 25 employees with a turnover of around ?
6 Pages(1500 words)Literature review
Critical Literature Review
Implementing an innovative idea can be by the virtue of introducing new technology, new process, new hierarchy or way of operating or even new legislation. This review is to critically examine innovation in governance. Every public sector organization around the world will have its own limitations to invest money, time, increase number of people and allocate resources to a certain innovation project.
6 Pages(1500 words)Literature review
Critical Review
Modern developments led by Western scholars have insisted on scientific realities grounded in positivism and therefore emphasizes the reductionist approach to scientific knowledge (Nelson, 2006). In other words, Nelson (2006) argues that the divide between science and religion is a result of a growing tendency of scientists to focus on testing theories by reference to observable and quantifiable results.
8 Pages(2000 words)Literature review
Critical Appraisal: Emotional Freedom Technique
Both the researches are primary researches implying that they involve the study of the actual sources of the information they thereafter compare thereby determining the actual effectiveness of each treatment methodology.
8 Pages(2000 words)Essay
Project Evaluation and Review Technique
PERT as a technique tends to use three different types of estimates including Optimistic, Pessimistic as well as most likely estimates. It is important to note that most likely estimates have higher weightage as compared to other two estimates made by the PERT as for it, no single estimate tend to incorporate risk in accurate way.
2 Pages(500 words)Essay
Critical Literature Review
94) At the start of his book on the self and modernity Giddens uses the analogy of divorce to explain the extra pressures that modernity brings to people. Although traditional society was always subject to unforeseen events and even catastrophes, interpersonal relationships in previous times tended to require more stable and fixed modes of behaviour.
7 Pages(1750 words)Literature review
Article Critical Review
The main findings of the article are that some people react negatively, and others positively depending on their thought of why their superior has sent to them the friend request.
3 Pages(750 words)Literature review
Critical review of paper
Recent studies have shown that the attitudes of medical students reveal what types of skills are considered important in undergraduate studies, specifically with how this affects the
4 Pages(1000 words)Literature review
A CRITICAL REVIEW OF THE USE OF FACEBOOK AS A SOCIAL MEDIA TECHNIQUE TO PROMOTE SMALL AND MEDIUM SCALE BUSINESS ONLINE
Over the years there have been numerous companies providing that have made very good use of the internet and have flourished phenomenally. Companies like Amazon, Myntra, eBay and Flipkart are
10 Pages(2500 words)Literature review
Critical literature review
However, theoretically, there can be many ways to learning medicine, reading books, listening lectures and discussing medical jargons with colleagues can be of a limited use. Such learning only increases knowledge not understanding that is more needed than cramming dozens of medical jargons.
12 Pages(3000 words)Literature review
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Literature review on topic Electroanalytical Technique (Voltammetric techniques) critical review for FREE!
logo footer
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us