在最初的滴定溶液里,已知的是卡尔费休试剂,二氧化硫和碘溶解在吡啶和甲醇中。
In the original titrimetric solution, known as Karl Fischer Reagent, the sulfur dioxide and iodine are dissolved in pyridine and methanol.
也可使用含除吡啶外的溶剂或基质,或除甲醇外的醇。
Commercially available reagents containing solvents or bases other than pyridine or alcohols other than methanol may be used also.
建立了以磷酸氢二钾-磷酸盐缓冲溶液中添加甲醇为流动相,以反相高效液相色谱同时测定吡啶、2-氨基吡啶、2-甲基吡啶和2-吡啶甲酸的新方法。
A new reversed phase high performance liquid chromatography method is described for the simultaneous determination of pyridine, 2-aminopyridine, 2-methylpyridine and 2-pyridinecarboxylic acid.
在甲醇和水的混合体系中,通过芳醛,丙二腈和脂肪胺的三组分反应我们顺利得到了一系列多取代的吡啶和1,4-二氢吡啶衍生物。
Polysubstituted pyridines and 1,4-dihydropyridines were prepared in a three-component reaction of aromatic aldehyde, malononitrile and aliphatic amine in a mixed solvent of methanol and water.
于是,利用溴代烃和吡啶基的反应证实在甲醇中进行的这个沉淀聚合产物的表面覆盖的是吡啶基。
Then, it was verified with hydrocarbon bromide that pyridyl was grafted on the surface of microsphere prepared in methanol by precipitation polymerization.
于是,利用溴代烃和吡啶基的反应证实在甲醇中进行的这个沉淀聚合产物的表面覆盖的是吡啶基。
Then, it was verified with hydrocarbon bromide that pyridyl was grafted on the surface of microsphere prepared in methanol by precipitation polymerization.
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