Determination of Cr in certified reference material HISS-1, marine sediment, by cold plasma isotope dilution ICP-MS and INAA: comparison of microwave versus closed (Carius) tube digestion

2003 ◽  
Vol 18 (2) ◽  
pp. 166-169 ◽  
Author(s):  
W. Robert Kelly ◽  
Karen E. Murphy ◽  
Donald A. Becker ◽  
Jacqueline L. Mann
Keyword(s):  
Reference Material ◽  
Certified Reference Material ◽  
Marine Sediment ◽  
Isotope Dilution ◽  
Cold Plasma ◽  
Icp Ms

scholarly journals Development of Isotope Dilution LC-MS/MS Method for Accurate Determination of Arsenobetaine in Oyster Certified Reference Material

2014 ◽  
Vol 35 (3) ◽  
pp. 821-827 ◽  
Author(s):  
Woo Young Lee ◽  
Yong-Hyeon Yim ◽  
Euijin Hwang ◽  
Youngran Lim ◽  
Tae Kyu Kim ◽  
...  
Keyword(s):  
Reference Material ◽  
Certified Reference Material ◽  
Isotope Dilution ◽  
Accurate Determination

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.

Development of an ID ICP-MS reference method for the determination of Cd, Hg and Pb in a cosmetic powder certified reference material

2016 ◽  
Vol 8 (4) ◽  
pp. 796-804 ◽  
Author(s):  
Sook Heun Kim ◽  
Youngran Lim ◽  
Euijin Hwang ◽  
Yong-Hyeon Yim
Keyword(s):  
Reference Material ◽  
Certified Reference Material ◽  
Reference Method ◽  
Safety Issues ◽  
Hazardous Elements ◽  
Icp Ms

Accurate measurement of hazardous elements in cosmetics is considerably important in response to cosmetic safety issues.

Homogeneity and stability of a candidate certified reference material for the determination of methamphetamine and amphetamine in hair

2010 ◽  
Vol 53 (4) ◽  
pp. 1037-1041 ◽  
Author(s):  
Sooyeun Lee ◽  
Hajime Miyaguchi ◽  
Eunyoung Han ◽  
Eunmi Kim ◽  
Yonghoon Park ◽  
...  
Keyword(s):  
Reference Material ◽  
Certified Reference Material
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