油气田环境保护2026，Vol.36Issue(3)：60-65,6.DOI:10.3969/j.issn.1005-3158.2026.03.010
高锰酸盐指数标准样品测定正确度影响因素及对策
Influencing Factors and Countermeasures for the Trueness of Permanganate Index Determination in Standard Samples
张晨笛 1杜佳 1郭颖楠 1齐兴涛 1石启 1廖赟姬 1廖鸿辉2
作者信息
- 1. 中国石油玉门油田公司监督中心环境监测站
- 2. 中国石油玉门油田公司环庆采油厂
- 折叠
摘要
Abstract
Permanganate index is a key indicator for evaluating water pollution levels,a mandatory item in surface water and groundwater monitoring,and also a critical assessment index for verifying the competence of laboratories and inspection bodies.In accordance with the newly issued standard HJ 1445-2026"Water Quality—Determination of Permanganate Index-Sodium Oxalate Reduction Acidic Titration",this study systematically explored the influencing mechanisms of experimental location,water used for tests,concentrations of potassium permanganate and sodium oxalate standard solutions,standard sample concentration,heating duration,and acid dosage on the trueness of permanganate index determination in standard samples.The core technical differences between HJ 1445-2026 and GB/T 11892-89 and their impacts on measurement results were emphatically compared.Targeted optimization countermeasures and suggestions compatible with the new standard HJ 1445-2026 were proposed,providing a scientific basis for laboratories in different regions to carry out standard sample determination in compliance with this method.This ensures the accuracy,consistency and compliance of monitoring data,and lays a solid foundation for water environmental quality assessment and pollution control.关键词
高锰酸盐指数/标准样品/实验条件/正确度/新旧标准对比Key words
permanganate index/standard sample/experimental conditions/trueness/comparison between new and old standards分类
资源环境引用本文复制引用
张晨笛,杜佳,郭颖楠,齐兴涛,石启,廖赟姬,廖鸿辉..高锰酸盐指数标准样品测定正确度影响因素及对策[J].油气田环境保护,2026,36(3):60-65,6.
