the sterols, the authors added 0.5 mL of BSTFA + 1 percent TMCS to the extract and maintained the extract at 70[degrees]C for one hour to form the trimethyl silylether (TMS) derivative, which was stored at 4[degrees]C until completion of analysis.
used 4-chloro-3,5-dinitrobenzotrifluoride (CNBF), which may react with primary or secondary amines in the sample, to derivatize
glufosinate in maize samples for quantification by LC .
Methods using a variety of reagents, most often pentafluorobenzyl bromide (PFBBr), derivatize
Three organosilanes (phenyltrichlorosilane, 1-phenyl-4-trichlorosilylbucane, and 1-phenyl-11-trichlorosilylundecane) were used to derivatize
fumed silica with different surface characteristics.
The original GC-MS procedure incorporates a 15-min incubation at 60 [degrees]C with N-methyl-N(tert-butyldimethylsilyl) trifluoracetamide to derivatize
the analytes and internal standard.
We therefore concluded that unless cellular material is available in abundance, it is better to separate DNA and RNA first, then derivatize
separately under different conditions.
Laboratories that do not derivatize
their samples would likely need to adjust their cutoff values for C16 acylcarnitine following similar validation studies as described here.
Chemtura will have global rights to develop, derivatize
, manufacture, use and sell products incorporating the Elevance Aria WTP technology in lubricant applications.
impurity components isolated from bulk heroin samples; the