Prospects in analytical atomic spectrometry

Bol’shakov, Alexander A.; Ганеев, А. А.; Nemets, V. M.

doi:10.1070/rc2006v075n04abeh001174

Cited by 24 publications

(15 citation statements)

References 235 publications

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“…This allows one to correct for any influence of the sample matrix, so as to avoid systematic errors caused by the self-absorbance of strong lines, as well as to correct for any time instability or drift of the base line. 142 Spectral overlaps that can not be eliminated by a purposeful choice of lines are possible to correct with an instrumental interelement correction.…”

Section: ·2 Inductively Coupled Plasma Atomic Emission Spectrometrymentioning

confidence: 99%

“…Thus, to eliminate polyatomic overlaps, reaction/collision cells are proposed. 142 An additional restriction of the method is exacting requirements to the saline composition of analyzed solutions, usually less 0.2%. 2,37 A search for an optimum way of solution introduction into the plasma is continuing.…”

Section: ·2 Inductively Coupled Plasma Atomic Emission Spectrometrymentioning

confidence: 99%

“…To improve the nebulization efficiency, alternative introduction techniques, such as electrothermal atomization, ultrasonic nebulization, and thermonebulization are proposed. 10,142 During the determination of extremely low concentrations of noble metals (excluding Au and Rh, possessing one isotope only), an isotope dilution technique is widely applied.…”

Section: ·2 Inductively Coupled Plasma Atomic Emission Spectrometrymentioning

confidence: 99%

“…It is made possible by relative simplicity, reliability and the low cost of atomic absorption spectrometers. 142 Several approaches are used to correct for any non-selective background absorption: the dilution of samples, calibration on solutions with a composition equal to the sample, spike techniques, etc.…”

Section: Instrumental Techniques Coupled With Sorption Preconcentrationmentioning

confidence: 99%

“…The ETAAS detection limits for "easy" platinum metals are comparable with an ICP-MS determination. 1,[139][140][141][142][143] In spite of a relatively short working range and an inefficient single-element mode, atomic absorption analysis is one of the most dynamic developing areas of spectrometry. It is made possible by relative simplicity, reliability and the low cost of atomic absorption spectrometers.…”

Section: Instrumental Techniques Coupled With Sorption Preconcentrationmentioning

confidence: 99%

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Trends in Sorption Preconcentration Combined with Noble Metal Determination

2007

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Nowadays much attention is being paid to the determination of trace amounts of noble metals in geological, industrial, biological and environmental samples. The most promising techniques, such as inductively coupled plasma atomic emission spectrometry (ICP-AES), inductively coupled plasma mass spectrometry (ICP-MS) and electrothermal atomic absorption spectrometry (ETAAS) are characterized by high sensitivity. However, the accurate determination of trace noble metals has been limited by numerous interferences generated from the presence of matrix elements. To decrease, or eliminate, these interferences, the sorption preconcentration of noble metals is often used prior to their instrumental detection. A great number of hyphenated methods of noble metal determination using sorption preconcentration have been developed. This review describes the basic types of available sorbents, preconcentration procedures and preparations of the sorbent to the subsequent determination of noble metals. The specific features of instrumental techniques and examples of ETAAS, FAAS, ICP-AES, ICP-MS determinations after the sorption preconcentration of noble metals are considered. The references cited here were selected mostly from the period 1996 -2006.

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Section: ·2 Inductively Coupled Plasma Atomic Emission Spectrometrymentioning

confidence: 99%

Section: ·2 Inductively Coupled Plasma Atomic Emission Spectrometrymentioning

confidence: 99%

Section: ·2 Inductively Coupled Plasma Atomic Emission Spectrometrymentioning

confidence: 99%

Section: Instrumental Techniques Coupled With Sorption Preconcentrationmentioning

confidence: 99%

Section: Instrumental Techniques Coupled With Sorption Preconcentrationmentioning

confidence: 99%

See 3 more Smart Citations

Trends in Sorption Preconcentration Combined with Noble Metal Determination

2007

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Laser Spectrometric Techniques in Analytical Atomic Spectrometry

Axner

Galbács

2012

Encyclopedia of Analytical Chemistry

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The main purpose of this article is to describe the theory, instrumentation, and analytical performance of laser analytical atomic spectrometry, focusing on absorption, fluorescence, and ionization techniques. The structure of the article is such that it first provides an outline of the theory of light‐matter interactions that prevail for each type of technique as well as of the most common modulation techniques, primarily, wavelength modulation (WM). This is followed by a section that covers the most important types of instrumentation used. The article finally provides a detailed discussion on the specific instrumentation, mode of operation, use, performance, and applications (both analytical and diagnostic) of each technique. In terms of laser atomic absorption, the focus of the discussion is on the use of approaches to enhance the detection capability by either reducing the amount of noise (as is done by the wavelength modulation absorption spectrometry (WMAS) technique) or by providing an extended interaction length (giving rise to cavity‐enhanced absorption spectrometry (CEAS) techniques in general, and cavity ring‐down spectrometry (CRDS) in particular). Laser atomic fluorescence techniques (often referred to as laser‐excited atomic fluorescence spectrometry ( LEAFS )) as well as laser ionization techniques (termed either laser‐enhanced ionization ( LEI ) or resonance ionization spectrometry ( RIS )) are also covered in some detail. It is shown that several of these techniques are capable of detecting a variety of elements in liquid samples down to low picogram per milliliter (pg mL −1 ) or parts‐per‐trillion (ppt) concentrations and in low femtogram amounts. Also other properties of the techniques, e.g. selectivity and linear dynamic range (LDR), are in general superior to those of conventional (nonlaser‐based techniques).

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