Validation of a geochemical logging tool for in situ major element analysis in boreholes using inductively coupled plasma atomic emission spectrometry

The Analyst ◽  
1995 ◽  
Vol 120 (5) ◽  
pp. 1407 ◽  
Author(s):  
Mark S. Sams ◽  
Peter J. Watkins ◽  
Michael H. Ramsey
Keyword(s):  
Inductively Coupled Plasma ◽  
Major Element ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Element Analysis ◽  
Inductively Coupled ◽  
Logging Tool

Use of Normalized Relative Line Intensities for Qualitative and Semi-Quantitative Analysis in Inductively Coupled Plasma Atomic Emission Spectrometry Using a Custom Segmented-Array Charge-Coupled Device Detector. Part I: Principle and Feasibility

1995 ◽  
Vol 49 (10) ◽  
pp. 1478-1484 ◽  
Author(s):  
Luc Soudier ◽  
Jean-Michel Mermet
Keyword(s):  
Inductively Coupled Plasma ◽  
Major Element ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Charge Coupled Device ◽  
Inductively Coupled ◽  
Line Intensities ◽  
Relative Line

A procedure is described to conduct qualitative analysis in inductively coupled plasma atomic emission spectrometry even in the presence of spectral interferences. This procedure is based on the use of both line correlation and normalized relative line intensities of given elements. When spectral interferences due to a major element are observed for an analyte, use of multiple linear regression of the normalized relative line intensities of both the analyte and the major element provides information about the certainty of the presence of the analyte and the relative concentration between the major element and the analyte. Direct peaking and automatic background correction are required for this procedure. In this instance, no information is necessary about the shape of the line profile. This procedure has been tested with an echelle grating-based dispersive system equipped with a custom segmented-array charge-coupled device detector.

Microwave digestion of tree foliage for multi-element analysis

1989 ◽  
Vol 19 (8) ◽  
pp. 981-985 ◽  
Author(s):  
Y. P. Kalra ◽  
D. G. Maynard ◽  
F. G. Radford
Keyword(s):  
Inductively Coupled Plasma ◽  
Microwave Digestion ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Digestion Method ◽  
Element Analysis ◽  
Inductively Coupled ◽  
Multi Element Analysis

A microwave digestion procedure was developed for multi-element determinations in tree foliage by inductively coupled plasma–atomic emission spectrometry. The procedure involved the sequential digestion of 0.500 g of plant material with HNO3 (10 mL), H2O2 (1 mL), and HCl (2 mL) at 90% power for 30 min, 90% power for 15 min, and 30% power for 10 min, respectively. The proposed method gave Ca, Mg, K, Na, Mn, P, and S results in good agreement with the National Institute of Standards and Technology plant reference materials. Iron and aluminum concentrations were 20 to 30% lower than the certified National Institute of Standards and Technology values. Recovery of standard additions of the elements tested (including iron and aluminum) ranged from 93 to 105%. The proposed digestion method provides accurate and precise results for multi-element analysis on one solution. In addition, HClO4, an extreme laboratory hazard, has been replaced in the digestion procedure by H2O2. The microwave digestion method has been used successfully in our laboratory for over 1 year for routine analysis and for a quality assurance program using a variety of plant materials. With this method 36 to 48 samples per person per day can be prepared for inductively coupled plasma–atomic emission spectrometry analysis.

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