Analysis method for analyzing silicon in secondary circuit water of nuclear power station by using GFAAS

• Main Authors: CAI JINPING, CHEN LIXIAN, WANG BAO, LI HAIKE, QU DI, BEUM BYEONG JIN, ZHAN XIAOCHUAN, ZHANG JINCHAO, YE ZHANGHAN, WU ZHONGLIANG, CHEN DENG, SUN LIFAN, WANG YALIN
• Format: Patent
• Language: Chinese; English
• Published: 30.09.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention belongs to the technical field of nuclear power plant water chemical analysis, and particularly relates to an analysis method for analyzing silicon in nuclear power plant secondary circuit water by using GFAAS. Preparing a silicon standard use solution, automatically diluting the silicon standard use solution into standard solutions with a series of concentrations by using an atomic absorption spectrometer, and preparing a palladium nitrate matrix improver by using palladium nitrate powder; the method comprises the following steps: after setting parameters of an atomic absorption spectrometer, sequentially and automatically sucking a palladium nitrate matrix improver and a series of concentration standard solutions, injecting the palladium nitrate matrix improver and the series of concentration standard solutions into a graphite tube of a pyrolysis coating platform of the atomic absorption spectrometer, starting the atomic absorption spectrometer, automatically recording absorbance after analysi