, phosphorus pentachloride, dichloromethane, dimethylaniline, etc.
N,O-bis(trimethylsilyl) trifluoroacetamide containing 1% trimethylchlorosilane
, used for preparation of trimethylsilyl (TMS) ether derivatives of sterols, was obtained from Supelco (Bellefonte, PA).
The dried sample was then mixed with 200 [micro]L of pyridine and 100 [micro]L of Sylon bis (trimethylsilyl) trifluoroacetamide (99% bistrifluoroacetamide+1% trimethylchlorosilane
and derivatized at 50[degrees]C for 1 h.
HCl, used or formed as a by-product when trimethylchlorosilane
So far, organic silicon monomers, such as tetramethylorthosilicate (TMOS), tetraethyl orthosilicate (TEOS), and polyethoxydisiloxane (PEDS), are generally selected as precursors [4, 7, 8] and the trimethylchlorosilane
(TMCS) [9,10], hexamethyldisiloxane (HMDSO) , and hexamethyldisilazane (HMDS) [7, 9,12] were used for silylating silica gels, and aerogels were dried under ambient pressure conditions.
To provide 2D nanomold with good antisticking surface properties, an antiadhesive layer was deposited using trimethylchlorosilane
For derivatization the Trimethylchlorosilane
(TMCS) or N-Methyl-N-trimethylsilyltri-fluoroacetamide+ 1% Trimethylchlorosilane
and N,o-Bis(trimethylsilyl) trifluoroacetamide (BSTFA) PI-48915, Pierce Chemical Company, No.
Bis(trimethylsilyl)trifluoroacetamide (BSTFA), trimethylchlorosilane
(TMCS) and pyridine were used as silylation reagents.
BPA derivatization was performed with BSTFA containing 10% trimethylchlorosilane
To increase the volatility of the compounds, in the next step we silylated the samples using 30 [micro]L N-methyl-N-trimethylsilyltrifluoroacetamide with 1% trimethylchlorosilane
(Thermo Fisher Scientific) for 1 h at room temperature.
Trimethylsilane was prepared according to the procedure in the literature  from trimethylchlorosilane
by reduction with LiAl[H.
In some of these reported methods, silica particles are produced by passing sodium silicate through ion-exchange resin and subsequent surface modification using trimethylchlorosilane
, after exchanging the aqueous solution with organic solvent.