colourimetry造句

The contents of tea polyphenols in tea can be determined with ferrous tartrate colourimetry method.
采用酒石酸亚铁比色法测定茶多酚含量.

The content of NaCl in soda ash is determined by colourimetry of mercury thiocyanate.
作者采用硫氰酸汞比色法测定纯碱中氯化钠的含量.