Determination of extractable perfluorooctanesulphonate (PFOS) in coated and impregnated solid articles, liquids and fire fighting foams. Method for sampling, extraction and analysis by LCqMS or LC-tandem/MS

2015 ◽  
Keyword(s):  
Fire Fighting ◽  
Tandem Ms ◽  
Lc Tandem Ms

Determination of pharmaceuticals, iodinated contrast media and musk fragrances in sludge by LC tandem MS and GC/MS

2005 ◽  
Vol 1067 (1-2) ◽  
pp. 213-223 ◽  
Author(s):  
Thomas A. Ternes ◽  
Matthias Bonerz ◽  
Nadine Herrmann ◽  
Dirk Löffler ◽  
Elvira Keller ◽  
...  
Keyword(s):  
Contrast Media ◽  
Tandem Ms ◽  
Iodinated Contrast Media ◽  
Iodinated Contrast ◽  
Musk Fragrances ◽  
Lc Tandem Ms

Development and Validation of a Sensitive LC–Tandem-MS Method for the Quantitative Determination of Picroside II in Rat Plasma

2008 ◽  
Vol 68 (11-12) ◽  
pp. 1027-1032 ◽  
Author(s):  
Yanmei Ma ◽  
Shan Cheng ◽  
Michael L. Leski ◽  
Dali Luo ◽  
Junqi He
Keyword(s):  
Quantitative Determination ◽  
Rat Plasma ◽  
Tandem Ms ◽  
Picroside Ii ◽  
Development And Validation ◽  
Lc Tandem Ms

scholarly journals Multimycotoxin Analysis by LC-MS/MS in Cereal Food and Feed: Comparison of Different Approaches for Extraction, Purification, and Calibration

2018 ◽  
Vol 101 (3) ◽  
pp. 647-657 ◽  
Author(s):  
Michele Solfrizzo ◽  
Lucia Gambacorta ◽  
Rita Bibi ◽  
Martina Ciriaci ◽  
Angela Paoloni ◽  
...  
Keyword(s):  
Matrix Effects ◽  
Solid Phase ◽  
Tandem Ms ◽  
Proficiency Tests ◽  
Food And Feed ◽  
Z Scores ◽  
High Matrix ◽  
Extraction Solvents ◽  
Lc Tandem Ms

Abstract Twelve different approaches commonly used for the simultaneous LC tandem MS (MS/MS) determination of mycotoxins (deoxynivalenol, aflatoxins, ochratoxin A, T-2 and HT-2 toxins, fumonisins, and zearalenone) were tested in cereals and feed materials. They comprised different extraction solvents, types of cleanup [solid-phase extraction, QuEChERS, and immunoaffinity (IMA)], and calibration approaches (external or matrix-matched). The percentage of mycotoxins with acceptable recovery, according to Regulation (EC) No. 401/2006, ranged from 9 to 100%. The approach giving the highest percentage of acceptable results was selected and further tested for corn, rice, and feed spiked at three different mycotoxin levels (low, medium, and high). The method is based on extraction with MeOH–water (70 + 30, v/v) and cleanup with two multiantibody IMA columns. For corn and rice spiked at low mycotoxin levels, a significant matrix effect was observed and was compensated by using 13C calibration. At higher mycotoxin levels (medium and high), matrix effects were negligible as no significant differences were observed for the majority of recovery results calculated by 13C calibration and external calibration. Although the proposed method still needs improvement in terms of accuracy and, to a lesser extent, precision, it was successfully tested with four proficiency tests in buckwheat, corn, rice, and feed, giving acceptable z-scores for 97% (34 out of 35) of results.

Determination of Drospirenone in Human Plasma by LC–Tandem-MS

2008 ◽  
Vol 68 (9-10) ◽  
pp. 713-720 ◽  
Author(s):  
Uttam Bhaumik ◽  
Animesh Ghosh ◽  
Uttam Mandal ◽  
Bappaditya Chatterjee ◽  
Amlan Kanti Sarkar ◽  
...  
Keyword(s):  
Human Plasma ◽  
Tandem Ms ◽  
Lc Tandem Ms

Determination of Glucocorticoids in Animal Plasma, Urine and Tissues by Column-Switching LC–Tandem-MS

2008 ◽  
Vol 68 (9-10) ◽  
pp. 689-700 ◽  
Author(s):  
Katja Heinig ◽  
Thomas Wirz ◽  
Franz Bucheli
Keyword(s):  
Column Switching ◽  
Tandem Ms ◽  
Lc Tandem Ms
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