An excellent Google Video critique of “Determination of Methylmercury, Ethylmercury, and Inorganic Mercury in Mouse Tissues, Following Administration of Thimerosal, by Species-Specific Isotope Dilution GC-Inductively Coupled Plasma-MS ,” Qvarnstrom, Lambertsson, Havarinasab, Hultman, & Frech,
Anal. Chem. 2003; 75 4120 using pen, paper and video camera.