Measurement parameters and value points:
According to JJG 939-2009 "Verification Regulations for Atomic Fluorescence Spectrophotometers", the measurement parameters of the atomic fluorescence spectrophotometer verification device are: fluorescence intensity
The points of measurement values are: drift and noise, measurement repeatability, measurement linearity, and inter channel interference

matters needing attention:
The element content measured by atomic fluorescence spectrophotometer is trace level, and the chemical reagents used in the analysis process are an important cause of pollution. Therefore, it is necessary to use sufficiently pure acids and other reagents
During the analysis process, high-purity distilled water, deionized water, or higher purity water must be used

Deionized water must be stored in an inert plastic container and should be removed through a silicone tube when in use

Arsenic standard solution 1000 μ g/mL, 1 bottle