Determination of cadmium in environmental and biological reference materials using isotope dilution analysis with a double focusing ICP-MS: a comparison with quadrupole ICP-MS

1999 ◽  
Vol 14 (9) ◽  
pp. 1467-1473 ◽  
Author(s):  
J. Pablo Valles Mota ◽  
Jorge Ruiz Encinar ◽  
M. Rosario Fern�ndez de la Campa ◽  
J. Ignacio Garc�a Alonso ◽  
Alfredo Sanz-Medel
Keyword(s):  
Reference Materials ◽  
Isotope Dilution ◽  
Isotope Dilution Analysis ◽  
Biological Reference Materials ◽  
Icp Ms ◽  
Double Focusing

Accurate determination of iron, copper and zinc in human serum by isotope dilution analysis using double focusing ICP-MS

1999 ◽  
Vol 14 (9) ◽  
pp. 1505-1510 ◽  
Author(s):  
Cristina Sariego Muñiz ◽  
Juan M. Marchante Gayón ◽  
J. Ignacio García Alonso ◽  
Alfredo Sanz-Medel
Keyword(s):  
Human Serum ◽  
Isotope Dilution ◽  
Accurate Determination ◽  
Isotope Dilution Analysis ◽  
Iron Copper ◽  
Copper And Zinc ◽  
Icp Ms ◽  
Double Focusing

A Method for the Routine Determination of Methylmercury in Marine Tissue by GC Isotope Dilution-ICP-MS

2012 ◽  
Vol 95 (4) ◽  
pp. 1189-1194 ◽  
Author(s):  
Stig Valdersnes ◽  
Amund Maage ◽  
Daniel Fliegel ◽  
Kåre Julshamn
Keyword(s):  
Reference Material ◽  
Reference Materials ◽  
Isotope Dilution ◽  
Isotope Dilution Mass Spectrometry ◽  
Standard Reference Materials ◽  
Statistical Measures ◽  
Icp Ms ◽  
Wide Range ◽  
Z Scores

Abstract Currently, there is no legal limit for methyl mercury (MeHg) in food; thus, no standardized method for the determination of MeHg in seafood exists within the European jurisdiction. In anticipation of a future legislative limit an inductively coupled plasma isotope dilution mass spectrometry (GC-ICP-ID-MS) method was developed in collaboration with the European Standardization Organization (CEN). The method comprises spiking the tissue sample with Me201Hg, followed by decomposition with tetramethylammonium hydroxide, pH adjustment and derivatization with sodium tetraethylborate, and finally organic extraction of the derivatized MeHg in a hexane phase. Subsequently, the sample is analyzed via GC-ICP-MS and the result calculated using the ID equation. The working range of the method was 0.0005–1.321 mg/kg MeHg in marine tissue, with an internal reproducibility (RSD) of 12–1%. The method was validated based on statistical measures, such as the z-scores, using the commercially available reference materials from National Institute of Standards and Technology Standard Reference Material (NIST SRM) 1566b, NIST SRM 2977 and National Research Council of Canada (NRCC) TORT 2, NRCC, DORM 3, NRCC DOLT 4, and European Reference Material (ERM) CE 464. Z-scores for all standard reference materials, except for NIST SRM 1566b, were better than |1.5|. The wide range of marine tissues used during the validation ensures that the method will be applicable for measuring of MeHg in seafood matrixes of all kinds.

scholarly journals Combination of single particle ICP-QMS and isotope dilution analysis for the determination of size, particle number and number size distribution of silver nanoparticles

2016 ◽  
Vol 31 (10) ◽  
pp. 2045-2052 ◽  
Author(s):  
Carina A. Sötebier ◽  
Daniel J. Kutscher ◽  
Lothar Rottmann ◽  
Norbert Jakubowski ◽  
Ulrich Panne ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Size Distribution ◽  
Isotope Dilution ◽  
Single Particle ◽  
Particle Number ◽  
Matrix Effects ◽  
Isotope Dilution Analysis ◽  
Size Particle ◽  
Icp Ms

Successful compensation of matrix effects by a combination of single particle ICP-MS and isotope dilution analysis.

Determination of selenium in biological materials by isotope dilution analysis with an octapole reaction system ICP-MS

2003 ◽  
Vol 18 (1) ◽  
pp. 11-16 ◽  
Author(s):  
L. Hinojosa Reyes ◽  
J. M. Marchante Gayón ◽  
J. I. García Alonso ◽  
A. Sanz-Medel
Keyword(s):  
Isotope Dilution ◽  
Reaction System ◽  
Biological Materials ◽  
Isotope Dilution Analysis ◽  
Icp Ms
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