1 The percentage composition of colloidal sol-gel and molar percentage of carboxyl group(—COOH) of the resin were analyzed.

2 Gas chromatographic analysis reveals that the reducing gases percentage composition greatly decreases with the increasing of AN.

3 Calculate the percentage composition of the two forms of D-galactose at equilibrium.

4 On the condition of the same percentage composition of LBA-603, the preparation temperature is the primary factor which affects the coating effect.

5 In this way the formula of a compound can be used to calculate the percentage composition by mass of a compound.

6 The experimental results show that the relative density, hardness, relative specific conductance and heat conductivity of the billets are increased with increasing percentage composition of Cu.

7 The polysaccharide content of two preparations was compared, and then the monosaccharide components and percentage composition were determined.

8 AIM : To study the constituents of Hypericum Scabraum. its percentage composition.

9 Methods: The volatile oils was extracted by steam-stilling and was identified by GC-MS. Calculated the percentage composition of the volatile oils according to Peak area normalization method.