Objective Judging the performance stability of atomic fluorescence spectrometer in the Laboratory. Methods We performed intermediate check to atomic fluorescence spectrometer. We test the detection limits, measurement repeatability, linear error and accuracy of the instrument for arsenic reference substances. Results Verifiable indicators are in line with the standard requirements. Conclusion This method is simple and feasible, and the performance of the atomic fluorescence spectrometer in the laboratory is stable.

atomic fluorescence spectrometer  /  intermediate check  /  arsenic