After irradiated of solution of SNP under fluorescent lamp, the increase in ab-sorbance at 394 nm belonged to nonlinear kinetics, but the absorbance increment with concentrationwas linear in certain concentration range of SNP.

• 在光源照射下,硝普钠溶液在394nm处吸收度增加属非线性动力学,但对一定浓度溶液,吸收度增量对浓度呈直线关系;