University of North Florida
Browse the Citations
-OR-

Contact Info

Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

View Stuart Chalk's profile on LinkedIn

Anders Gustavsson

Abbrev:
Gustavsson, A.
Other Names:
Address:
Department of Analytical Chemistry, Royal Institute of Technology, S-100 44 Stockholm, Sweden
Phone:
NA
Fax:
NA
Email:

Citations 5

"New Sample-introduction Devices For Analytical Atomic Spectrometry"
Trends Anal. Chem. 1989 Volume 8, Issue 9 Pages 336-338
Anders Gustavsson

Abstract: Recent devices for introduction of sample solution into AAS or AES instruments permit their coupling to flow systems, e.g., for HPLC or flow injection analysis. Three such devices are briefly described, viz, a nebulizer for flame AAS, and a jet separator and membrane separator for plasma AES.
Spectrophotometry Spectrophotometry Review Phase separator Nebulizer Membrane

"Characterization Of A Membrane Interface For Sample Introduction Into Atom Reservoirs For Analytical Atomic Spectrometry"
Spectrochim. Acta B 1988 Volume 43, Issue 8 Pages 917-922
Anders Gustavsson

Abstract: Details are given of an interface, comprising a Meinhard concentric glass nebulizer, an aerosol chamber (Ibid., 1987, 42B, 111) and a separator incorporating silicone rubber membranes (5 µm) supported on polyethylene, for removal of organic solvent from solution before spectrometric analysis. Solvent removal efficiencies for CHCl3 and 1,1,2-trichlorotrifluoroethane at Ar gas flow rates of 0.5 and 1.0 l min-1 ranged from 97.7 to 99.9% and from 79.4 to 94.1%, respectively, at a separator temperature of 20°C. The separator is of particular value for ICP techniques, and can be used to interface flow injection analysis or HPLC with, e.g., AAS or MS.
Spectrophotometry Spectrophotometry Interface Silicone membrane

"Characterization Of A Nebulizer Interface For Flame Atomic Absorption Spectroscopy"
Spectrochim. Acta B 1987 Volume 42, Issue 7 Pages 883-888
Anders Gustavsson, Olle Nygren

Abstract: A nebulizer interface is described (with diagram) for the coupling of low-flow-rate techniques (e.g., flow injection analysis and HPLC) with flame AAS. It consists of a concentric nebulizer, a heated aerosol chamber, a PTFE adapter and an SP9 burner head. The interface was connected to Varian model 1475 and Pye Unicam SP1900 flame AAS instruments with water, CHCl3 and aqueous methanol as test solution and simulated normal flow injection analysis and HPLC conditions.
Spectrophotometry Apparatus Nebulizer Organic solvent

"Characterization Of An Interface For Sample Introduction Into An Inductively Coupled Plasma"
Spectrochim. Acta B 1987 Volume 42, Issue 1-2 Pages 111-118
Anders Gustavsson

Abstract: The interface, which is suitable for connecting an ICP as a concentration.-sensitive detector in HPLC or flow injection analysis, consists of a glass Meinhard concentric nebulizer, a heated aerosol-desolvation chamber, and a jet separator to remove most of the solvent vapor and nebulization gas. Analyte transport efficiencies of ~35% can be attained, with much enhanced aerosol analyte concentration. at acceptable plasma solvent loads by comparison with conventional nebulization systems.
Spectrophotometry Apparatus Interface Nebulizer

"New Nebulizer System: Interface Gives Significantly Lower Detection Limits"
Kemi. Tid. 1988 Volume 100, Issue 9 Pages 51-52
Gustavsson, A.

Abstract: In new nebulizer systems giving significantly lower detection limits for metal atoms and making possible the combination of atomic spectrometric techniques with HPLC and FIA (flow injection analysis), the nebulizer system is set at a distance from the instrument and replaced by an interface. This is the best way to convert and transport the sample into the instrument. Thus, an interface for FAAS (flow atomic absorption spectrometry) having an efficiency of 90-100% thanks to lower liquid flow differs from a 'normal' aerosol chamber by a cone at the entrance by the introduction of extra gas and heat, and by operating the nebulizer with an oxidizing gas (air). In the heating zone, the solvent is evapd. from the aerosol droplets. Alternatively, a jet separation interface, especially for ICP (inductively coupled plasma) techniques with low flow and microwave plasma, comprising two concentric tubes in a vacuum chamber in the path of the aerosol particles gives 35% efficiency and up to 180 times higher analyte concentration in the aerosol. For easier removal of the solvent vapor, a gas excess in the aerosol chamber is used. A membrane interface is also described with 50-70% efficiency and 80-100% solvent removal and 140 times higher analyte concentration. It comprises a membrane separator containing membrane supports of high-density polyethylene and a silicone rubber membrane. It is especially useful in analysis flow techniques, above all 1-step FIA extraction. The system FIA-membrane interface-ICP is well suited for the simultaneous determination of trace amounts of many metals. Thereby the ICP-MS techniques will also be improved.
Metals Spectrophotometry Spectrophotometry Interface Silicone membrane