基于二次响应面模型的硫酰氟熏蒸除虫条件优化研究

目的 研究硫酰氟熏蒸除虫的优化条件.方法 采用静式呼吸道吸入染毒法对试虫(德国小蠊)进行熏蒸处理,观察中毒症状与死亡情况,运用二次响应面回归模型对实验数据进行拟合及预测分析.结果 响应面模型差异有统计学意义(P＜ 0.000 1),总决定系数R2=0.784 8,模型的一次项、二次项与交叉项均有统计学意义,其决定系数分别为0.149 3、0.190 2和0.445 3.应用该模型对硫酰氟熏蒸灭蟑的剂量与作用时间值进行预测与分析.结论 基本确定硫酰氟熏蒸灭蟑的最佳剂量与作用时间的关系,为该熏蒸剂的科学、合理利用提供依据.

Optimization of fumigation effect of sulfuryl fluoride for disinsection based on the response surface model

OBJECTIVE To study the proper condition including dosage and exposure time for killing the insects by sulfuryl fluoride.METHODS All groups of cockroaches were fumigated using the method of static respiratory-tract inhalation.Symptoms of intoxication and death conditions were recorded.The experimental data were simulated and predicted using the method of mathematics model(response-surface model).RESULTS The response-surface model was highly significant in statistics(P﹤0.000 1),total R2 equaled to 0.784 8.The linear,quadratic and crossproduct regression items were also significant,and their determining coefficients were 0.149 3,0.190 2,0.445 3 respectively;The optimal conditions of disinsection were predicted according to the model mentioned above.CONCLUSION The relationship between dosage and exposure time of sulfuryl fluoride in cockroach killing is founded,which offers a scientific proof for the fumigation later.