Then adopt GC/MS to analysis each fraction qualitatively and quantitatively , investigate the distribution situation that the main material in different temperature range.

'Customarily, the larger mooncakes are cut into eight pieces because eight is an auspicious number,' explains Ms. Yeow, who adds that they are best served at room temperature.

With increasing annealing temperature, the coercivity Hc decreases and the saturation magnetization Ms increases.