n,o-双(三甲基硅)三氟乙酰胺(含三甲基氯硅烷)-cas:25561-30-2纯度:99% bstfa+ 1% tmcs,,用于gc衍生化-国华试剂-现货供应---产品英文名称:n,o-bis(trimethylsilyl)trifluoroacetamidewith trimethylchlorosilane---别名:n,o-双(三甲基硅烷基)三氟乙酰胺;n,o-双(三甲基硅烷基)三氟乙酰胺bstfa---储存条件:2...
Hair 28 BZDs/metabolites (FNZ, 7AFNZ) Sonication, overnight incubation with phosphate buffer pH 8.4LLE (dichloromethane/diethyl ether, 90/10, v/v) Luna C18 (1 × 150 mm, 5 μm) 0.1% Formic acid in water/0.1% formic acid in acetonitrileGradient elution High-resolution MS, OrbitrapFull sc...
with BSTFA (see Mecha-nism), reduces detector (FID) fouling.TMCS increases the reactivity of BSTFA (or other silylation reagents).Amides and many secondary amines and hindered hydroxyls, incom-pletely derivatized by BSTFA alone, can be derivatized by adding1 -20% TMCS to BSTFA.BSTFA+TMCS ...
【摘要】Non-volatile organic acids were important sour-tasting compounds in baijius (Chinese liquors).To get a better understanding for these compounds in raw liquors,an analytical method using N,O-bis (trimethylsilyl)trifluoroacetamide (BSTFA) as derivatization regent coupled with gas chromatography-...
BSTFA is a powerful thrimethylsilyl donor, with donor strength that is comparable to its unfluorinated analog BSA [N,O-Bis(trimethylsilyl)acetamide]. BSTFA reacts to replace labile hydrogens on a wide range of polar compounds with a -Si(CH3)3group. This physical characteristic is particularly...
N,O-双(*基甲硅烷基)三氟乙酰月安(BSTFA)是一种通用的甲硅烷基化试剂,用于形成挥发性的稳定的*基甲硅烷基衍生物。CovaChem的BSTFA是GC和GC / MS衍生级,通常用于衍生羧酸,酚类,类固醇,胺类,醇类和生物碱和酰胺。该试剂非常适合与较小分子形成衍生物。该试剂可在有或没有TMCS催化剂的情况下使用。