CAJ | 학술논문

基于稀磷酸介质中，澳化十六烷基吡啶对亚硝酸根催化溴酸钾氧化吡啰红B褪色反应的增敏作用，建立了测定亚硝酸根的表面活性剂增敏催化动力学光度法。加入溴化十六烷基吡啶，灵敏度增大2.2倍。测量亚硝酸根的线性范围为0.005～0.15 mg/L，检出限为0.004mg/L。用于水及蔬菜中痕量亚硝酸根的测定，结果满意。
기우희린산개질중，오화십륙완기필정대아초산근최화추산갑양화필라홍B퇴색반응적증민작용，건립료측정아초산근적표면활성제증민최화동역학광도법。가입추화십륙완기필정，령민도증대2.2배。측량아초산근적선성범위위0.005～0.15 mg/L，검출한위0.004mg/L。용우수급소채중흔량아초산근적측정，결과만의。
A catalytic kinetic photometric method for the determination of nitrite with surfactant sensitizer has been developed. The method is based on the catalysis of NO2- to the discoloring reaction of pyronine B oxidized by potassium bromate in the solution of dilute H3PO4. When cetylpyridine bromide was used as a sensitizer of the reaction, the sensitivity increased by 2.5 times approximately. There was linear relationshop of lg(Ao/A) with nitrite in the range 0.005 ～ 0.15 mg/L. The detection limit was 0.004 mg/L. The method was used in the determination of trace nitrite in water and vegetable samples with satisfactory results.