The invention relates to a method of directly detecting content of mercury in
solid rubber by means of a mercury
detector. The method includes steps of: setting working conditions of the mercury
detector as follows:
drying temperature is 350 DEG C,
drying time is 30 s, purging time is 30 s, analysis time is 12 s, reading time is 24 s, and
oxygen pressure is 0.45 MPa;
sample weight of a rubber sample is 0.03-0.15 g to the accuracy of 0.1 mg, sample
decomposition time is 1-4 min, and sample
decomposition temperature is 550-750 DEG C; then clicking start to detect the sample; after the detectionis finished, reading the detection result of content of mercury in the
solid rubber. The method is high in detection speed and is free of pretreatment of the sample, allows direct detection and has simple operation, can avoid volatilization loss during sample treatment and guarantee accuracy of the results, can reduce damage on environment and body health, and is suitable for large-scale analysison the smaple and direct detection of a
solid sample of a complex substrate, and has extensive application prospect.