The pretreatment process for rapid detection of azo dyes prohibited in textiles has undergone significant changes compared to the traditional method combining solid-phase extraction with nitrogen blowing.It discards the technical difficulties brought by extraction column adsorption and nitrogen blowing,thus reducing human errors.In terms of material loss,the simplified technical steps have brought about economic benefits,reduced the elution and concentration of target compounds in samples by a large number of reagents,including the use of other experimental consumables,effectively saving costs and protecting the environment.In addition,due to the reduction of target compound loss caused by some operations,the recovery rate of prohibited azo dyes in the test has increased,and the trace detection rate has also improved.A series of experimental data,comparison of experimental cycles,and loss comparison are analyzed for your reference.
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