High-resolution continuum source atomic absorption spectrometry: a review of current applications

Abstract

Atomic absorption spectrometry (AAS) is one of the most widely used and available methods for analysis of substances and materials. It allows one to determine about 70 elements from the periodic table and is characterized by rapidity, high accuracy and sensitivity, as well as simplicity of analytical techniques. A feature of AAS is simultaneous determination of only one element due to the use of a measurement design with a line source (hollow-cathode lamps, high-frequency electrodeless lamps, optical quantum generators, etc.). To make AAS more competitive, the fi rst commercially available continuum source atomic absorption spectrometer was designed in 2004. Unique analytical capabilities of the new instruments found application fi rst of all in the analysis of food, pharmaceuticals, waste and drinking water, oil and petrochemicals, biological objects, etc. This review covers publications on the application of continuum source AAS in analytical chemistry and provides a development outlook of the method.

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…An alternative approach to extending the linear dynamic range is to monitor different isotopes of the element under study which is not possible with sNP-ICP-MS as data would be lost due to the fast scanning times involved (note that this is not the case for ICP-TOF-MS). However, combining sequential analysis of the same sample could be possible and this has been reported for Ti NPs whereby data for both 47 Ti and 48 Ti were acquired. 282 The linear range for 48 Ti was 30-400 nm, although detector saturation oen occurred at a particle size of 250 nm or greater, whilst for 47 Ti it was 40-600 nm.…”

“…However, combining sequential analysis of the same sample could be possible and this has been reported for Ti NPs whereby data for both 47 Ti and 48 Ti were acquired. 282 The linear range for 48 Ti was 30-400 nm, although detector saturation oen occurred at a particle size of 250 nm or greater, whilst for 47 Ti it was 40-600 nm. The use of a desolvation device, coupled with SF-ICP-MS to reduce the PS LOD has also been reported.…”

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

“…Atomic absorption spectrometric techniques are widely used in many disciplines for the analysis of foodstuffs, environmental samples, water, nanomaterials, pharmaceuticals and biological specimens. [1][2][3][4][5][6][7][8] The selection of the most appropriate technique for a specific analysis depends on many factors, such as sample type and composition, chemical nature of elements, multi-element and isotopic capability of the instrument, desired limits of detection (LODs), available instrumentation and cost of analysis. [9][10][11][12] Atomic absorption spectrometry (AAS) is one of the most used techniques for elemental analysis and is selected based on three different atomization processes: Flame AAS (FAAS), electrothermal AAS (ETAAS) or graphite furnace AAS (GFAAS), and chemical vapor generation AAS.…”

“…16 Initially, LS-AAS was the main approach for multi-element determination by GFAAS, but over the last 15 years the HR-CS-AAS has become the dominant technique. 8 The instruments are equipped with an ultra-high pressure Xenon short-arc lamp as the continuum source, an optical system based on a double monochromator, and a linear chargecoupled device (CCD) array detector. 8,17,18 This work reviewed studies published from 2000 to 2020 for the simultaneous or sequential multi-element determinations by GFAAS.…”

“…8 The instruments are equipped with an ultra-high pressure Xenon short-arc lamp as the continuum source, an optical system based on a double monochromator, and a linear chargecoupled device (CCD) array detector. 8,17,18 This work reviewed studies published from 2000 to 2020 for the simultaneous or sequential multi-element determinations by GFAAS. The LS-GFAAS and HR-CS-GFAAS were investigated, since they are considered the main AAS techniques for this purpose.…”