Improvement of analytical performance in inductively coupled plasma optical emission spectrometry without compromising robustness using an infrared-heated sample introduction system with a pneumatic nebulizer

2015 ◽  
Vol 30 (1) ◽  
pp. 214-224 ◽  
Author(s):  
Yoseif Makonnen ◽  
John Burgener ◽  
Diane Beauchemin
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Sample Introduction ◽  
Infrared Heating ◽  
Emission Spectrometry ◽  
Heated Sample ◽  
Inductively Coupled ◽  
Line Intensity Ratio ◽  
Plasma Optical Emission Spectrometry ◽  
Pneumatic Nebulizer

Infrared-heating the spray chamber and bottom of the torch significantly improves sensitivity and detection limit for 38 elements, as well as robustness, resulting in a Mg II 280.270 nm/Mg I 285.213 nm line intensity ratio of 13.

A total consumption (up to 75 μL min−1) infrared-heated sample introduction system for inductively coupled plasma optical emission spectrometry

2020 ◽  
Vol 35 (6) ◽  
pp. 1125-1130 ◽  
Author(s):  
Ahmed Al Hejami ◽  
Mirah J. Burgener ◽  
John Burgener ◽  
Diane Beauchemin
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Analytical Performance ◽  
Sample Introduction ◽  
Emission Spectrometry ◽  
Total Consumption ◽  
Heated Sample ◽  
Inductively Coupled ◽  
Sample Introduction System ◽  
Plasma Optical Emission Spectrometry

A compact infrared-heated sample introduction system provides similar analytical performance with higher robustness and faster washout than commercially available nebulization systems.

New infrared-heated sample introduction system for enhanced analytical performance of inductively coupled plasma optical emission spectrometry

2018 ◽  
Vol 33 (5) ◽  
pp. 738-744 ◽  
Author(s):  
Ahmed Al Hejami ◽  
Diane Beauchemin
Keyword(s):  
Inductively Coupled Plasma ◽  
Detection Limits ◽  
Optical Emission ◽  
Analytical Performance ◽  
Sample Introduction ◽  
Emission Spectrometry ◽  
Spray Chamber ◽  
Heated Sample ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

A cyclonic spray chamber was modified to allow the insertion of an infrared lamp to improve detection limits and robustness.

Inductively Coupled Plasma Optical Emission Spectrometry for Rare Earth Elements Analysis

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Man He ◽  
Bin Hu ◽  
Beibei Chen ◽  
Zucheng Jiang
Keyword(s):  
Rare Earth ◽  
Matrix Effect ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Sample Introduction ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Solid Samples ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

Abstract Inductively coupled plasma optical emission spectrometry (ICP-OES) merits multielements capability, high sensitivity, good reproducibility, low matrix effect and wide dynamic linear range for rare earth elements (REEs) analysis. But the spectral interference in trace REEs analysis by ICP-OES is a serious problem due to the complicated emission spectra of REEs, which demands some correction technology including interference factor method, derivative spectrum, Kalman filtering algorithm and partial least-squares (PLS) method. Matrix-matching calibration, internal standard, correction factor and sample dilution are usually employed to overcome or decrease the matrix effect. Coupled with various sample introduction techniques, the analytical performance of ICP-OES for REEs analysis would be improved. Compared with conventional pneumatic nebulization (PN), acid effect and matrix effect are decreased to some extent in flow injection ICP-OES, with higher tolerable matrix concentration and better reproducibility. By using electrothermal vaporization as sample introduction system, direct analysis of solid samples by ICP-OES is achieved and the vaporization behavior of refractory REEs with high boiling point, which can easily form involatile carbides in the graphite tube, could be improved by using chemical modifier, such as polytetrafluoroethylene and 1-phenyl-3-methyl-4-benzoyl-5-pyrazone. Laser ablation-ICP-OES is suitable for the analysis of both conductive and nonconductive solid samples, with the absolute detection limit of ng-pg level and extremely low sample consumption (0.2 % of that in conventional PN introduction). ICP-OES has been extensively employed for trace REEs analysis in high-purity materials, and environmental and biological samples.

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