典型的缓冲液由一对足够浓度的共轭酸碱组成,具有抗酸抗碱、抗稀释、稳定溶液pH的作用。也就是说,缓冲液具有足够大的缓冲容量(用β表示,一般大于0.01mol·L~(-1)·pH~(-1))和较小的稀释值(△pH_(1/3))绝对值。根据缓冲液的应用,可将缓冲液分成两类:一类用于控制溶液的pH,此类缓冲液通常分别由能提 A typical buffer consists of a sufficient concentration of conjugate acid base, with acid and alkali resistance, anti-dilution, the role of pH stability of the solution. That is, the buffer has a sufficiently large buffer capacity (expressed by β, generally greater than 0.01 mol·L -1 · pH -1) and a smaller dilution (ΔPj_ (1/3) Absolute value. Depending on the application of the buffer, the buffers can be divided into two categories: one for controlling the pH of the solution, which usually consists of