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美國樣本
暫無看了二氧化碳同位素分析儀(CCIA-36d-EP)的用戶又看了
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四種同位素異數(shù)體, 三種同位素比值、功能二合一分析儀
進行二氧化碳同位素測量時,科學家需要確保:(1)大量程的濃度測量范圍;(2)高精度:(3)在濃度快速改變的同時,確保同位素比值的準確測量;(4)低漂移;(5)對甲烷和其他碳氫化合物的干擾不敏感。LGR的二氧化碳同位素分析儀可以滿足所有這些需求。分析儀采用了LGR**的**技術(shù),離軸積分腔輸出光譜技術(shù)(OA-ICOS),這種技術(shù)屬于第4代光腔衰蕩光譜(CRDS)技術(shù),提高了測量精度和速度,同時改進了對溫度、壓力和濕度等環(huán)境條件的敏感性。LGR的**技術(shù)擁有傳統(tǒng)的CRDS技術(shù)所無法比擬的優(yōu)點,它消除了CRDS技術(shù)在測量期間需要連續(xù)進行光腔與激光波長匹配以改善微弱信號強度的弱點。
特點與優(yōu)點:
1.精度:
3.測量范圍(全量程線性,滿足所有技術(shù)指標):
6.**漂移(峰峰值,24小時內(nèi)1小時平均):δ13C: < 0.5‰ (增強型)
7.取樣條件:樣品溫度-20 – 50 °C;操作溫度0 – 45 °C;環(huán)境濕度:非凝結(jié)(0 – 100%相對濕度)
8.壓力控制精度:0.001 torr;溫度控制精度:0.001度
9.輸出:數(shù)字(RS232)、網(wǎng)絡(luò)接口、USB
10.電源需求(穩(wěn)態(tài)):50/60 Hz,350 W (增強型)
11.尺寸:11”× 38”× 22” (增強型);重量:50 kg (增強型)
訂貨信息:
型號CCIA-36d-EP (貨號912-0003):12CO2 ,13CO2, CO18O2, H2O
可選件:
應用文獻
"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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