浩瀚气相色谱仪在线观测本底大气中的甲烷和二氧化碳GC7990

 

Over the past hundred years, the increase of greenhouse gases in the atmosphere and climate change and ecological environment may cause problems, has aroused the attention of the human society is more and more widely, the main greenhouse gas - CH4 and CO2 background concentration monitoring is very important. The scientists since 60s began to continuous monitoring and Study on the main greenhouse the gas concentration, and have been in the world with different longitude and latitude region to establish major greenhouse gases background monitoring station network, but most of these stations built on the island and coastal, inland to the atmospheric background data scarce.

 

According to the World Meteorological Organization Global Atmospheric Monitoring Network (WMO/GAW) to carry out global greenhouse gas monitoring, Tengzhou Xiangying Analysis Technology Co. Ltd established online GC7990 gas chromatography (GC) method of methane and carbon dioxide (CH4/CO2) continuous observation system. The business operation of the system for more than a year and the calibration calibration. Assembling and debugging operation, and infrared absorption (NDIR) method, gas sampling - laboratory analysis (FLASK) method, comparative observation data, and other domestic and foreign stations. The results show that the system has good linearity, sensitivity, precision and accuracy, the design is fully compatible with the WMO global atmospheric measurement requirements operation performance, high automation and strict quality control over China; the concentration of background data of CH4 and CO2 in the atmosphere with the international comparability of observation results in reverse The background variation characteristics of atmospheric CH4 and CO2 in the western plateau of china.

近百年来，大气中温室气体含量的增加及其可能导致的气候变化和生态环境问题，已引起人类社会日益广泛的关注，对主要温室气体——CH4和CO2本底浓度的监测就显得十分重要.科学家们自60年代起开始了对主要温室气体本底浓度的连续监测和研究，并相继在全球的不同经纬度地区建立起主要温室气体的本底监测站网，但这些台站大多建立在岛屿及海岸，导致内陆大气本底观测资料的稀少.
根据世界气象组织全球大气监测网(WMO/GAW)开展全球温室气体监测的要求，滕州市翔鹰分析技术有限公司建立了GC7990在线气相色谱(GC)法甲烷和二氧化碳(CH4/CO2)连续观测系统.概述了该系统一年多时间里的业务运行和标定情况.组装调试和运行标定，与红外吸收(NDIR)法、气瓶采样-实验室分析(FLASK)法数据，以及与国内外其它台站观测资料的对比结果表明，该系统具有良好的线性、灵敏度、精度和准确度，其设计完全符合WMO全球大气本底测量的要求，具有高自动化的操作性能和严格的质量控制；所获我国大陆上空本底大气中CH4和CO2的浓度资料具有国际可比性，观测结果反映了我国西部高原地区大气CH4和CO2的本底变化特征。
XiangyingGC7990plus features:
1 excellent performance, competitive price, to meet the customers' choice
2 multi industry adaptability
3 outstanding performance in all kinds of harsh environment
INJ
A variety of sampling ports can be equipped with: packed column inlet, shunt / non shunt capillary inlet,
Hydrogen flame ionization detector (FID)
Maximum use temperature: 400
The minimum detection limit: -12 = 2.5*10 g/s (n-C16)
Linear range: 107 (+ 10%)
 
XiangyingGC7990plus特点：

1. 卓越的性能，具有竞争力的价格，满足广大客户的选择
2. 多行业适应性
   3. 在各种苛刻环境下均表现出色

进样口
多种进样口可配：填充柱进样口、分流/不分流毛细管进样口、
氢火焰离子化检测器（FID） 
***高使用温度：400℃
***小检出限：≤2.5*10 -12 g/s(n-C16)
线性范围：107（±10%）