探讨五日生化需氧量质控样的几个影响因素

Discussion on Several Influencing Factors of Five-Day Biochemical Oxygen Demand Quality Control Samples

摘要: 本研究针对BOD₅测定关键环节——稀释接种水制备过程中的温度控制、盐度调节、曝气方式优化、溶解氧质量浓度、接种液投加量校准及样品稀释倍数确定等影响因素进行系统探讨，旨在建立规范化的操作方案，为提升环境监测数据质量提供理论依据。

Abstract: This study systematically explores the influencing factors in the preparation process of dilution and inoculation water, a key step in the determination of BOD₅, including temperature control, salinity adjustment, optimization of aeration methods, calibration of dissolved oxygen mass concentration, inoculation liquid addition volume, and determination of sample dilution ratio. The aim is to establish a standardized operation plan and provide a theoretical basis for improving the quality of environmental monitoring data.