Atmospheric pressure plasma jet (APPJ) were used to decontaminate the surface’s 2-Chloroethyl ethyl sulfide (2-CEES), a kind of sulfur mustard (HD) simulant. The power of the APPJ device didn’t exceed 7.77 W. Helium APPJ was easier to generate plasma jet than argon APPJ. The treated nude mouse skin surface’s temperature slowly reached 30.4 °C and no obvious lesions in the dermis and skin appendages after 15 min treatment. Compared with argon APPJ, the helium APPJ produced more ·OH and the maximum concentration of ·OH was 3.748 × 10⁻⁹ mol/L. Attributed to the low density and more ·OH content, the helium APPJ had a better decontamination effect. With a maximum voltage of 7 kV and a helium flow rate of 4 L/min, 2-CEES (4.53 mg/cm²) can be completely decontaminated in 2.5 min, and no gaseous 2-CEES was detected. The detection of the 2-Hydroxyethyl ethyl sulfide proved the role of ·OH in the reaction system. During the reaction, 2-Chloroethyl ethyl sulfoxide and 2-Chloroethyl ethyl sulfone were also detected. The plasma jet could reduce the toxicity by destroying the parent molecule (2-CEES) in a short time, but it took more time to eliminate the intermediate products. No relevant intermediate products were detected in the gaseous, ensured the safety of personnel operating in open spaces.

采用大气压等离子射流 (APPJ) 对表面的 2-氯乙基乙基硫醚 (2-CEES) 进行净化，这是一种硫芥 (HD) 模拟物。APPJ 装置的功率不超过 7.77 W。氦气 APPJ 比氩气 APPJ 更容易产生等离子射流。处理15分钟后，裸鼠皮肤表面温度缓慢达到30.4℃，真皮和皮肤附件无明显损伤。与氩气APPJ相比，氦气APPJ产生更多的·OH，·OH的最大浓度为3.748×10 ^-9 mol/L。由于密度低、·OH含量多，氦气APPJ的去污效果更好。最大电压为 7 kV，氦气流量为 4 L/min，2-CEES (4.53 mg/cm ²) 可在2.5分钟内完全去污，未检测到气态2-CEES。2-羟乙基硫醚的检测证明了·OH在反应体系中的作用。反应过程中还检测到2-氯乙基乙基亚砜和2-氯乙基乙基砜。等离子射流可以在短时间内通过破坏母体分子（2-CEES）来降低毒性，但消除中间产物需要更多时间。气体中未检测到相关中间产物，保证了露天作业人员的安全。