【摘要】 利用氧荧光猝灭原理研制了台式生化需氧量(BOD)传感检测仪器。仪器的工作系统由检测系统和软件系统两部分组成。该检测仪操作简便,检测快速,可进行海水BOD含量的现场检测。仪器的性能考察结果表明,在0.5~50mg/L浓度范围内BOD响应的线性相关系数为0.9978。实际海水样品的检测结果显示,仪器对海水样品的平行测定结果相对标准偏差小于±5%,并且与标准五日生化需氧量(BOD5)方法所获得的数值的相关性为0.99。仪器具有较长的使用寿命和良好的稳定性。更多还原

【Abstract】 A portable biochemical oxygen demand(BOD)sensin g apparatus based on the fluorescent quenching of oxygen was developed for BOD d etermination.The apparatus showed good characteristics such as easy manipulatio n,rapid response and practicable in situ measurement for BOD in seawater.The l inear fluctuant coefficient(R2)in the BOD concentration range from 0.5 t o 50 mg/L was 0.9978.A reproducible response of less 5 % for the BOD apparatus could be obtained in the analysis of real seawater samples.The values estimate d by this biosensing apparatus correlated well with those determined by the conventional 5-day BOD(BOD5)test.The investigation results indicated t hat the apparatus presented its long application life and good stability.更多还原