Nevertheless, our previous study showed that PA6 became soluble in such solvents after they were reacted with TFAA
leading to N-trifluoroacetylated derivatives (PA6-TFAA) [27, 29].
On Monday, TFAA
organized a flag march in various departments headed by Prof Dr Sajid Rashid, Dr Shazia Qureshi, Dr Khalid Mahmood, Dr Fakhrul Haq Noori and Dr Mahboob Hussain.
On Wednesday, TFAA
'president' Dr Mahboob Hussain along with other members of the 'newly formed' ASA body visited different departments of the Punjab University, including the Old Campus, to ask the faculty members to participate in the general body meeting of the ASA.
Later, the outgoing body developed some differences with their rival group TFAA
and postponed the elections scheduled for March 13.
Codex Office), currently housed in the Food Safety and Inspection Service (FSIS), will be moved to the newly created TFAA
concentration was determined by the method described by Peoples et al.
The mobile phase was organized as gradient and composed of 0.05% (v/v) TFAA
in HPLC gradient grade ACN (solvent A) and 0.05% (v/v) TFAA
in distilled water (solvent B).
or HFBA derivatives, the initial oven temperature was set at 70[degrees]C for 1 min; then increased to 200[degrees]C at the rate of 10[degrees]C/min and to 240[degrees]C at the rate of 20[degrees]C/min.
Xavier Alpasa, TFAA
spokesperson, said Erguiza had a tough job in defending the indefensible.
trichloroacetic anhydrides; TFAA
= trifluoroacetic anhydrides.
In order to obtain the optimum temperature, we tested three different degrees (25, 60, and 100[degrees]C) under fixed conditions of 1 mL n-octanol, 5 [micro]L TFAA
, and 5 min extraction time.
We purchased THC, 11-OH-THC, THCCOOH, CBD, and CBN for calibrators and quality control samples and corresponding internal standards (d3-THC, d3 11-OH-THC, d3-THCCOOH, d3-CBD) from Ceril liant; N,0-bis(trimethylsilyl)trifluoroacetamide (BSTFA) with 1% trimethylchlorosilane from Thermo Fisher Scientific; trifluoroacetic anhydride (TFAA
) and hexafluoroisopropanol (HFIP) from Campbell Science; and CEREX[R] Polycrom[TM] THC (3 cc/35 mg) extraction columns from SPEware.