看了二氧化碳同位素分析仪(CCIA-36d-EP)的用户又看了
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四种同位素异数体, 三种同位素比值、功能二合一分析仪
进行二氧化碳同位素测量时,科学家需要确保:(1)大量程的浓度测量范围;(2)高精度:(3)在浓度快速改变的同时,确保同位素比值的准确测量;(4)低漂移;(5)对甲烷和其他碳氢化合物的干扰不敏感。LGR的二氧化碳同位素分析仪可以满足所有这些需求。分析仪采用了LGR**的**技术,离轴积分腔输出光谱技术(OA-ICOS),这种技术属于第4代光腔衰荡光谱(CRDS)技术,提高了测量精度和速度,同时改进了对温度、压力和湿度等环境条件的敏感性。LGR的**技术拥有传统的CRDS技术所无法比拟的优点,它消除了CRDS技术在测量期间需要连续进行光腔与激光波长匹配以改善微弱信号强度的弱点。
特点与优点:
1.精度:
3.测量范围(全量程线性,满足所有技术指标):
6.**漂移(峰峰值,24小时内1小时平均):δ13C: < 0.5‰ (增强型)
7.取样条件:样品温度-20 – 50 °C;操作温度0 – 45 °C;环境湿度:非凝结(0 – 100%相对湿度)
8.压力控制精度:0.001 torr;温度控制精度:0.001度
9.输出:数字(RS232)、网络接口、USB
10.电源需求(稳态):50/60 Hz,350 W (增强型)
11.尺寸:11”× 38”× 22” (增强型);重量:50 kg (增强型)
订货信息:
型号CCIA-36d-EP (货号912-0003):12CO2 ,13CO2, CO18O2, H2O
可选件:
应用文献
"Deployment of a Carbon Isotope Ratiometer for the Monitoring of CO2 Sequestration Leakage"
Ian McAlexander, Greg H. Rau, Jimmy Liem, Thomas Owano, Ray Fellers, Douglas Baer, and Manish Gupta
Analytical Chemistry,
"A new chamber method for the simultaneous determination of δ13C and δ18O in soil derived CO2"
Nils Prolingheuer, Harry Vereecken, and Jens-Arne Subke
EGU - Geophysical Research Abstracts, Vol. 13, EGU2011-2550-3, 201
"Use of Laser Spectroscopy To Measure the 13C/12C and 18O/16O Compositions of Carbonate Minerals"
Shaun L. L. Barker, Gregory M. Dipple, Feng Dong, and Douglas S. Baer
Analytical Chemistry, DOI: 10.1021/ac103111y
"Use of laser spectroscopy to measure the del_13C and del_18O composition of carbonate minerals"
Barker, S. L.; Dipple, G. M.; Dong, F.; Baer, D. S.
American Geophysical Union, Fall Meeting 2010, abstract #V51B-2194
"Fast carbon isotope analysis of CO2 using cavity enhanced laser absorption: water effects and extended dynamic range [300 ppmV to 100000 ppmV CO2 in air]"
McAlexander, W. I.; Fellers, R.; Owano, T. G.; Baer, D. S.
American Geophysical Union, Fall Meeting 2010, abstract #B23A-0386
"Carbon isotope analysis of discrete CO2 samples ranging from 300 ppmv to 100% using cavity enhanced laser absorption"
Wm. Ian McAlexander, Raymond Fellers, Thomas Owano, Doug Baer
European Geophysical Union General Assembly, May 3 - 7, 2010
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