環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測專用總烴甲烷柱，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑

環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測專用總烴甲烷柱
環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測專用總烴甲烷柱 詳細信息：

名稱：甲烷總烴復合柱
規(guī)格：1m*1/8
型號：HH-NMHC
應用：《環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測系統(tǒng)技術(shù)規(guī)定（試行）》發(fā)布 2021

環(huán)境空氣非甲烷總烴不僅對大氣環(huán)境和人體健康有重要的影響，也是光化學監(jiān)測網(wǎng)的重要監(jiān)測指標之一。生態(tài)環(huán)境部《關(guān)于加強揮發(fā)性有機物監(jiān)測工作的通知》（環(huán)辦監(jiān)測函[2020]335號）文件要求“加強VOCs自動監(jiān)測能力建設，有條件的城市逐步開展NMHC自動監(jiān)測試點工作”，目前國內(nèi)有100余個城市已經(jīng)開展了環(huán)境空氣非甲烷總烴自動監(jiān)測。隨著《技術(shù)規(guī)定》的印發(fā)試行，系統(tǒng)安裝、驗收和運維質(zhì)控等相關(guān)工作開展將有據(jù)可依，監(jiān)測數(shù)據(jù)的準確性和性會進一步提高，根據(jù)試行過程中的反饋意見我們也將不斷修訂完善。

為確?！都夹g(shù)規(guī)定》中的各項指標科學可行，編制組組織市場較常見的非甲烷總烴連續(xù)自動監(jiān)測儀器開展實驗室標準氣體和環(huán)境空氣比對測試，15臺儀器40余位技術(shù)人員參與測試，近20種標準氣體，獲取有效數(shù)據(jù)幾十萬條。根據(jù)儀器實際測試結(jié)果，并經(jīng)過儀器廠商交流和多次專家討論，重點針對環(huán)境空氣中非甲烷總烴濃度水平低等特點，明確了環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測系統(tǒng)的方法，根據(jù)實測數(shù)據(jù)提出了環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測系統(tǒng)驗收的性能指標要求，包括檢出限、空白、峰型、校準曲線、24h漂移、重復性、準確性、高濃度殘留、響應時間、多組分示值誤差等，以及系統(tǒng)質(zhì)量控制的周期和要求等。

為規(guī)范環(huán)境空氣非甲烷總烴連續(xù)監(jiān)測系統(tǒng)安裝與驗收、日常運維和質(zhì)量控制等工作，提高環(huán)境空氣非甲烷總烴自動監(jiān)測數(shù)據(jù)質(zhì)量，中國環(huán)境監(jiān)測總站聯(lián)合上海市環(huán)境監(jiān)測中心等單位組成的編制組，研究制定了《環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測系統(tǒng)技術(shù)規(guī)定（試行）》（以下簡稱《技術(shù)規(guī)定》），并于2021年1月印發(fā)全國生態(tài)環(huán)境監(jiān)測系統(tǒng)試行。


浩瀚色譜（山東）應用技術(shù)開發(fā)有限公司，，依據(jù)2021國標要求，成功研制出直測法分析環(huán)境空氣非甲烷總烴的專用填充柱HH-NMHC，結(jié)果理想。

環(huán)境空氣非甲烷總烴連續(xù)自動監(jiān)測專用總烴甲烷柱  測試譜圖：




A dedicated total hydrocarbon methane column for continuous automatic monitoring of ambient air non-methane total hydrocarbons
A dedicated total hydrocarbon methane column for continuous automatic monitoring of ambient air non-methane total hydrocarbons Details:

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

Ambient air non-methane total hydrocarbons not only have an important impact on the atmospheric environment and human health, but also one of the important monitoring indicators of the photochemical monitoring network. The Ministry of Ecology and Environment's "Notice on Strengthening the Monitoring of Volatile Organic Compounds" (Huanban Monitoring Letter [2020] No. 335) requires "strengthening the capacity building of automatic monitoring of VOCs, and gradually carrying out the pilot work of automatic monitoring of NMHC in cities where conditions permit." More than 100 cities have carried out automatic monitoring of ambient air non-methane total hydrocarbons. With the trial implementation of the "Technical Regulations", system installation, acceptance, operation and maintenance quality control and other related work will be based on evidence, and the accuracy and reliability of monitoring data will be further improved. According to the feedback during the trial implementation, we will also It will be continuously revised and improved.

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.

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.


Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. keeps pace with the times. According to the requirements of the 2021 national standard, it has successfully developed a special packed column HH-NMHC for the analysis of non-methane total hydrocarbons in ambient air by direct measurement method, and the results are ideal.

Ambient air non-methane total hydrocarbons continuous automatic monitoring dedicated total hydrocarbon methane column Test spectrum: