【摘要】 在多聚磷酸钠介质中,抗蚜威能显著增强RhB-Cu2+-H2O2体系的化学发光强度。基于此,结合流动注射技术,建立了测定抗蚜威的流动注射化学发光新方法。该法的检出限为58μg/L(3σ);线性范围为0.1~10 mg/L;对1.0 mg/L的抗蚜威连续平行测定11次,其相对标准偏差(RSD)为2.8%。该方法灵敏、简单、快速。用于农田水、乌江水、长江水以及自来水中抗蚜威含量的测定,回收率为95.5%~100.9%,结果令人满意。更多还原

【Abstract】 A novel chemiluminescence（CL） system for the determination of pirimicarb in water was（described）.In sodium polyphosphate medium,hydroxyl radical generated from the reaction of Cu²⁺ with H₂O₂ could oxidize rhodamine B to produce CL.Pirimicarb can enhance the CL intensity.The linear range of this system was 0.1-10 mg/L and the detection limit was 58 μg/L（3σ）.The relative standard deviation was 2.8% for 1.0 mg/L of pirimicarb（n=11）.The mechanism of the CL system was also（discussed）.The（proposed） method was sensitive,simple,rapid,and has was successfully applied to the determination of pirimicarb in water environment.The mean recovery was 95.5%-100.9%.更多还原