Atomic spectrometry update. Advances in atomic emission, absorption, and fluorescence spectrometry, and related techniques

Evans, E. Hywel; Day, Jason; Palmer, Christopher D.; Price, W. J.; Smith, Clare M. M.; Tyson, Julian F.

doi:10.1039/b805770m

Cited by 28 publications

(2 citation statements)

References 322 publications

(284 reference statements)

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“…Mercury has the power to form amalgams with several metals, such as silver, it has been widely used in dentistry, but the new legislation prohibited its use because of its toxic effects [1,2]. The most commonly used methods are atomic absorption [3], inductively coupled plasma mass spectrometry [4] and cold vapor atomic fluorescence spectrometry [5]. The electrochemical methods have proved highly effective in detecting mercury, with many advantages, such as, simplicity of implementation and inexpensive.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection and Removal of Mercury (II) at DNA Modified Carbon Paste Electrode

Smaini¹,

Maallah²,

Touzara³

et al. 2017

Biol syst Open Access

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Herein, we report a simple and inexpensive way for the fabrication of a microelectrode, DNA modified carbon paste electrode (DNA-CPE). DNA is deposited onto carbon paste electrode surface by self-assembled monolayers. The electrochemical behaviour of DNA-CPE's was studied by cyclic voltammetry (SWV) tests. The recorded CV's showed two redox peacks simultaneously at E oxidation=0.3 V and E reduction=0.2 V. The recorded SWV curves at DNA-CPE have shown great efficiency in the analysis of mercury (II) at different concentrations.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Detection and Removal of Mercury (II) at DNA Modified Carbon Paste Electrode

Smaini¹,

Maallah²,

Touzara³

et al. 2017

Biol syst Open Access

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“…1 There are a number of industrial applications for this technique in areas where simple, fast and inexpensive analysis is desired. [1][2][3][4] When compared to other spectrometric methods, LIBS's disadvantages are low sensitivity and poor limits of detection. The substantial improvement in analytical capabilities of LIBS can be achieved through the use of the double pulse configuration.…”

Section: Introductionmentioning

confidence: 99%

LIBS analysis of chromium in samples of dyed wool fabric

Pouzar

Průšová

Prokopčáková

et al. 2009

J. Anal. At. Spectrom.

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A method for the analysis of chromium in wool fabric samples was developed. It is fast and cheap with no sample preparation. This method involved the use of double pulse Laser Induced Breakdown Spectrometry (LIBS) for the wool fabric samples dyed by two types of metal complex dyes (C.I. Acid Orange 173 and C.I. Acid Black 60). A commercially available LIBS spectrometer was calibrated with the aid of authentic wool fabric samples previously analysed by F-AAS after microwave digestion. Comparable results can be obtained using this unique procedure if the same set of standards is used for XRF and LIBS calibration. Limits of detection for chromium achieved by suggested LIBS methods (from 5 to 10 mg kg À1 ) are comparable with the WD XRF ones (from 4 to 5 mg kg À1 ).

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Atomic Spectroscopy in Food AnalysisUpdate based on the original article by Scott A. Baker and Nancy J. Miller‐Ihli,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Baker¹,

Miller-Ihli²,

Fodor

et al. 2012

Encyclopedia of Analytical Chemistry

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There are several reasons that can explain why food analysis is a topic of strong interest for a large number of institutes around the world. Consumer demands have increased toward healthier and safer food products produced in environment‐friendly conditions. Food manufacturers and food distribution companies have to improve their quality control (QC) of raw materials, manufacturing processes, and end‐products to provide safe, healthy, and high‐quality products at reasonable price. Evaluation of element (e.g. essential and toxic) contents is an important part of nutrition and health claims made on foods. The methods best suited to meet this task are atomic spectroscopic methods such as atomic absorption, atomic emission, and elemental mass spectrometry (MS). Methods commonly used in the generation of food composition data include flame atomic absorption spectrometry (FAAS), graphite furnace atomic absorption spectrometry (GFAAS), inductively coupled plasma atomic emission spectrometry (ICP/AES), and inductively coupled plasma mass spectrometry (ICP/MS). FAAS and ICP/AES offer similar detection limits (DLs) (ng mL −1 levels), whereas GFAAS and ICP/MS can provide sub‐ng mL −1 detection capability. The choice of a method often depends on detection capability, but ease of use, speed of analysis, and cost must also be considered. ICP/AES, ICP/MS, and more recently GF/AAS offer the advantage of providing simultaneous multielement measurements, making them well suited for the analysis of large numbers of elements in food samples. If one or a few elements are to be determined, less expensive atomic absorption spectrometry (AAS) methods might be more suitable. The most critical stage in the development of analytical methods is sample preparation. Samples can be prepared using numerous procedures, but the most useful for a wide range of analytes and sample matrices are based on wet ashing of the sample. In addition to total element determinations, speciation measurements are important to determine the exact chemical form of the element that is present in the sample. As important properties, such as the bioavailability of an element, are dependent on its chemical form (speciation), the development of reliable methods for identification and quantification of trace element species is critical. The most practical difficulty encountered in speciation is to preserve the integrity of the sample and the species of interest during sampling, storage, and sample preparation. Hyphenated techniques, such as the coupling of chromatographic separation and atomic spectroscopic detection, have proven useful for elemental speciation measurements.

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Atomic spectrometry update. Advances in atomic emission, absorption, and fluorescence spectrometry, and related techniques

Cited by 28 publications

References 322 publications

Electrochemical Detection and Removal of Mercury (II) at DNA Modified Carbon Paste Electrode

Electrochemical Detection and Removal of Mercury (II) at DNA Modified Carbon Paste Electrode

LIBS analysis of chromium in samples of dyed wool fabric

Atomic Spectroscopy in Food AnalysisUpdate based on the original article by Scott A. Baker and Nancy J. Miller‐Ihli,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

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