haohanHH-NMHC环境空气非甲烷总烃连续自动监测系统技术规定直测填充柱

为规范环境空气非甲烷总烃连续监测系统安装与验收、日常运维和质量控制等工作，提高环境空气非甲烷总烃自动监测数据质量，中国环境监测总站联合上海市环境监测中心等单位组成的编制组，研究制定了《环境空气非甲烷总烃连续自动监测系统技术规定（试行）》（以下简称《技术规定》），并于2021年1月印发全国生态环境监测系统试行。

为确保《技术规定》中的各项指标科学可行，编制组组织市场较常见的非甲烷总烃连续自动监测仪器开展实验室标准气体和环境空气比对测试，15台仪器40余位技术人员参与测试，近20种标准气体，获取有效数据几十万条。根据仪器实际测试结果，并经过仪器厂商交流和多次专家讨论，重点针对环境空气中非甲烷总烃浓度水平低等特点，明确了环境空气非甲烷总烃连续自动监测系统的方法，根据实测数据提出了环境空气非甲烷总烃连续自动监测系统验收的性能指标要求，包括检出限、空白、峰型、校准曲线、24h漂移、重复性、准确性、高浓度残留、响应时间、多组分示值误差等，以及系统质量控制的周期和要求等。

名称：甲烷总烃复合柱
规格：1m*1/8
型号：HH-NMHC
应用：《环境空气非甲烷总烃连续自动监测系统技术规定（试行）》发布 2021

浩瀚色谱（山东）应用技术开发有限公司，与时俱进，研发直测专用HH-NMHC填充柱测定环境空气非甲烷总烃，柱效高，分离好，结果满意。

In order to standardize the installation and acceptance, daily operation and maintenance and quality control of ambient air non-methane total hydrocarbons continuous monitoring system, and to improve the quality of ambient air non-methane total hydrocarbons automatic monitoring data, the China Environmental Monitoring Station and Shanghai Environmental Monitoring Center and other units are formed. The compilation team has studied and formulated the "Technical Regulations for Continuous Automatic Monitoring System of Non-methane Total Hydrocarbons in Ambient Air (Trial Implementation)" (hereinafter referred to as "Technical Regulations"), and issued the National Ecological Environment Monitoring System for trial implementation in January 2021.

In order to ensure that the indicators in the "Technical Regulations" are scientific and feasible, the compilation group organized the continuous automatic monitoring instruments for non-methane total hydrocarbons, which are more common in the market, to carry out the comparison test of laboratory standard gas and ambient air. More than 40 technicians from 15 instruments participated. Test, nearly 20 standard gases, and obtain hundreds of thousands of valid data. According to the actual test results of the instrument, and through exchanges between instrument manufacturers and many expert discussions, focusing on the characteristics of low concentration of total non-methane hydrocarbons in ambient air, the method of continuous automatic monitoring system for non-methane total hydrocarbons in ambient air is clarified. According to the measured data The performance index requirements for the acceptance of the continuous automatic monitoring system for non-methane total hydrocarbons in ambient air are put forward, including detection limit, blank, peak shape, calibration curve, 24h drift, repeatability, accuracy, high concentration residue, response time, multi-component Indication error, etc., as well as the cycle and requirements of system quality control, etc.

Name: Methane total hydrocarbon composite column
Specifications: 1m*1/8
Model: HH-NMHC
Application: "Technical Regulations for Continuous Automatic Monitoring System of Non-methane Total Hydrocarbons in Ambient Air (Trial)" released 2021

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. keeps pace with the times and develops a HH-NMHC packed column for direct measurement to measure non-methane total hydrocarbons in ambient air, with high column efficiency, good separation, and satisfactory results.