| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for measuring a concentration of ammonium persulfate solution capable of accurately measuring the concentration even in a state where autolysis of ammonium persulfate solution advances and absorbance is changed due to a product of decomposition. <P>SOLUTION: The present invention measures a concentration of ammonium persulfate in a state where autolysis thereof advances using a flow cell with absorbance of 300 to 350 nm in an ultraviolet region in a line where the ammonium persulfate is cyclically supplied through a pump or the like. <P>COPYRIGHT: (C)2013,JPO&INPIT |
