2,3-Dimethyl-6-tert-butyl-8-fl

Determination of Pyrethroids in Blood Plasma and Pyrethroid/Pyrethrin Metabolites in Urine by Gas Chromatography-Mass Spectrometry and High-Resolution

hydrolysis and sample extraction with tert-butyl-methylether, the residue is derivatized with 1,1,1,3,3,3-hexafluoroisopropanol and analyzed by HRGC-MS (detection limit 0.1 �g/L urine).

Determination of Sulfur Amino Acids, Glutathione, and Related Aminothiols in Biological Samples by Gas Chromatography with Flame Photometric Detection

and lack sensitivity. GC methods based on the conversion into trimethylsilyl (4 ,5 ), neopentylidine (6 ), and N-trifluoroacetyl n -butyl ester (7 ) derivatives lack sensitivity, gives a tailing peak and requires anhydrous derivatization conditions

Synthesis of Peptidomimetic Conjugates of Cyclic Nucleoside Phosphonates

to 200 mesh, 1% cross‐linked, typical loading 1.0 to 1.8 mmol/g; Aldrich) Methyl O‐[tert‐butyl(dimethyl)silyl]‐(L )‐serinate ( S.6 a , see protocol