Isotope dilution ICP-MS with laser-assisted sample introduction for direct determination of sulfur in petroleum products

2005 ◽  
Vol 382 (8) ◽  
pp. 1808-1814 ◽  
Author(s):  
Sergei F. Boulyga ◽  
Jens Heilmann ◽  
Klaus G. Heumann
Keyword(s):  
Isotope Dilution ◽  
Direct Determination ◽  
Petroleum Products ◽  
Sample Introduction ◽  
Icp Ms

scholarly journals Direct determination of urinary iodine by inductively coupled plasma mass spectrometry using isotope dilution with iodine-129

1998 ◽  
Vol 44 (4) ◽  
pp. 817-824 ◽  
Author(s):  
Max Haldimann ◽  
Bernhard Zimmerli ◽  
Claudine Als ◽  
Hans Gerber
Keyword(s):  
Isotope Dilution ◽  
Inductively Coupled Plasma ◽  
Urinary Iodine ◽  
Direct Determination ◽  
Likelihood Estimation ◽  
Isotope Dilution Analysis ◽  
Spectrometric Method ◽  
Mass Spectrometric Method ◽  
Inductively Coupled

Abstract An inductively coupled mass spectrometric method was developed for the direct determination of iodine in urine. The application of isotope dilution analysis with added 129I offers new possibilities for automatic and accurate determinations. The sample preparation consists of dilution with an ammonia solution containing 129I. The validation was made by comparison with the results obtained in another laboratory by a spectrophotometric method based on the Sandell–Kolthoff reaction. Different regression models, including maximum likelihood estimation, were used to compare the methods. None of the models revealed analytical bias between the two methods. The urine samples analyzed for validation were from three persons previously exposed to an iodine bath and covered a concentration range of 0.2 to 2.8 μmol/L. A detection limit of 0.02 μmol/L, a within-run CV of 2.5%, and a between-run CV of 11.9% were estimated for the proposed method.

The development of a method for the determination of trace elements in fuel alcohol by ETV-ICP-MS using isotope dilution calibration

Talanta ◽  
2006 ◽  
Vol 68 (3) ◽  
pp. 957-962 ◽  
Author(s):  
Tatiana Dillenburg Saint’Pierre ◽  
Vera Lúcia Azzolin Frescura ◽  
Adilson José Curtius
Keyword(s):  
Trace Elements ◽  
Isotope Dilution ◽  
Fuel Alcohol ◽  
Icp Ms

An optimized protocol for high precision measurement of Hg isotopic compositions in samples with low concentrations of Hg using MC-ICP-MS

2018 ◽  
Vol 33 (11) ◽  
pp. 1932-1940 ◽  
Author(s):  
Hongyan Geng ◽  
Runsheng Yin ◽  
Xiangdong Li
Keyword(s):  
High Precision ◽  
Precision Measurement ◽  
Direct Determination ◽  
Gas Flows ◽  
High Precision Measurement ◽  
Isotopic Compositions ◽  
Low Concentrations ◽  
Optimized Protocol ◽  
Icp Ms

Optimized gas flows achieved the direct determination of Hg isotopic compositions of 0.1 ng mL−1 solutions.

scholarly journals Slurry nebulisation ICP-MS direct determination of high field strength elements (Nb, Ta, Zr, and Hf) in silicate rocks

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32435-32440 ◽  
Author(s):  
Rui Tong ◽  
Wei Guo
Keyword(s):  
Field Strength ◽  
Inductively Coupled Plasma ◽  
High Field ◽  
Direct Determination ◽  
High Field Strength ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Silicate Rocks

A simple, rapid, and reliable method based on slurry nebulisation inductively coupled plasma mass spectrometry (ICP-MS) was developed for the direct determination of four high field strength elements (HFSEs, namely, Nb, Ta, Zr, and Hf) in refractory silicate rocks.

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