抄録
The application of centrifugal method was studied for the rapid determination of sulfate in bittern. The method was as follows: to the diluted bittern add BaCl2 solution and centrifuge the precipitated BaSO4, then measure the volume of the precipitation and calculate the SO4 contents from it. We studied the effects by varying the conditions of precipitation and centrifuging, then decided the most appropriate procedures. Many samples were analysed by these procedures and good results were obtained withinn 0.1% errors for bitterns that involved about 5% sulfate.
