Direct determination of mercury in solid algal cells by direct-current argon-plasma emission spectrometry with sample introduction by electrothermal vaporization

1986 ◽  
Vol 88 (3-4) ◽  
pp. 249-258 ◽  
Author(s):  
Peter G. Mitchell ◽  
Benjamin Greene ◽  
Joseph Sneddon
Keyword(s):  
Direct Current ◽  
Argon Plasma ◽  
Direct Determination ◽  
Sample Introduction ◽  
Emission Spectrometry ◽  
Plasma Emission ◽  
Electrothermal Vaporization ◽  
Plasma Emission Spectrometry

Direct Determination of Copper in Solids and Ores by Laser Ablation-Direct Current Argon Plasma Emission Spectrometry

1985 ◽  
Vol 18 (14) ◽  
pp. 1723-1732 ◽  
Author(s):  
Peter G. Mitchell ◽  
James A. Ruggles ◽  
Joseph Sneddon ◽  
Leon J. Radziemski
Keyword(s):  
Laser Ablation ◽  
Direct Current ◽  
Argon Plasma ◽  
Direct Determination ◽  
Emission Spectrometry ◽  
Plasma Emission ◽  
Plasma Emission Spectrometry ◽  
Determination Of Copper

Direct determination of gold by d.c. argon plasma emission spectrometry

1991 ◽  
Vol 248 (2) ◽  
pp. 569-574 ◽  
Author(s):  
Kimmo Smolander ◽  
Matti Kauppinen
Keyword(s):  
Argon Plasma ◽  
Direct Determination ◽  
Emission Spectrometry ◽  
Plasma Emission ◽  
Plasma Emission Spectrometry

Direct Determination of Copper in Solids by Direct Current Argon Plasma Emission Spectrometry with Sample Introduction Using Laser Ablation

1987 ◽  
Vol 41 (1) ◽  
pp. 141-148 ◽  
Author(s):  
Peter G. Mitchell ◽  
Joseph Sneddon ◽  
Leon J. Radziemski
Keyword(s):  
Laser Ablation ◽  
Direct Current ◽  
Argon Plasma ◽  
Sample Introduction ◽  
Emission Spectrometry ◽  
Single Shot ◽  
Plasma Emission ◽  
Preparation Technique ◽  
Determination Of Copper

A direct-current argon plasma emission spectrometric system with sample introduction using laser ablation has been developed and evaluated for the determination of copper in pelletized powder and solid samples. The use of a low-energy and high-repetition-rate Nd: YAG laser gave a nearly steady-state signal that could be integrated over a relatively long time period of 30 s. This allowed a larger portion of the sample to be probed, and high % RSD—often obtained with single shot laser ablation because of sample inhomogeneities—reduced to 2–6%. The emission intensity was dependent on sample preparation technique, particle size, laser pulse rate, and copper anion. The system was used to directly determine copper in pelletized ore samples with 2–6% RSD, a detection limit of 20 μg g−1, and acceptable accuracy, once the factors described above were controlled.

Observations on the Determination of Uranium in Waters by Direct Current Argon Plasma Emission Spectrometry

1985 ◽  
Vol 18 (6) ◽  
pp. 425-436 ◽  
Author(s):  
Benjamin Greene ◽  
Adriana Uranga ◽  
Joseph Sneddon
Keyword(s):  
Direct Current ◽  
Argon Plasma ◽  
Emission Spectrometry ◽  
Plasma Emission ◽  
Plasma Emission Spectrometry

Determination of aluminium in bone in haemodialyzed patients, using inductively coupled argon plasma emission spectrometry

1990 ◽  
Vol 191 (1-2) ◽  
pp. 31-38 ◽  
Author(s):  
P. Leflon ◽  
R. Plaquet ◽  
P. Morinière ◽  
A. Fournier
Keyword(s):  
Argon Plasma ◽  
Emission Spectrometry ◽  
Plasma Emission ◽  
Inductively Coupled ◽  
Plasma Emission Spectrometry

Argon Plasma Emission Spectrometry of Uranium in Phosphatic Materials

1983 ◽  
Vol 66 (4) ◽  
pp. 949-951
Author(s):  
J D Norman ◽  
Louis A Stumpe ◽  
Joe R Trimm ◽  
Frank J Johnson
Keyword(s):  
Argon Plasma ◽  
Sample Pretreatment ◽  
Trioctylphosphine Oxide ◽  
Emission Spectrometry ◽  
Plasma Emission ◽  
Plasma Emission Spectrometry ◽  
Hydrochloric Acid Solutions ◽  
System 2 ◽  
Back Extract

Abstract A method is described for the determination of uranium by using a dc argon plasma emission spectrometer. Problems and interferences found in the method previously reported are overcome by using an improved sample pretreatment. A new synergistic system, 2% oxalic acid adjusted to pH 4.5 with triethanolamine, is used to quantitatively back-extract uranium from trioctylphosphine oxide in cyclohexane. This improved method yields excellent results for >1 ppm uranium in nitric and hydrochloric acid solutions of phosphate rocks, phosphoric acids, phosphate fertilizers, phosphogypsums, organic phosphates, and waste solutions. Recovery data are given for synthetic and certified standards.

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