国产精品久久久久久不卡_環(huán)境同位素實(shí)驗室----中國科學(xué)院地質(zhì)與地球物理研究所

所屬系統：古環(huán)境數據分析系統
實(shí)驗室位置：D2樓 402室
實(shí)驗室主任：楊石嶺
聯(lián)系電話(huà)：010－82998526

實(shí)驗室概況 | 儀器介紹 | 成果展示 | 實(shí)驗室成員 | 收費須知

實(shí)驗室介紹：

　　實(shí)驗室成立于2003年，配備有MAT253和Delta V plus型同位素比值質(zhì)譜儀，同時(shí)擁有Flash EA 1112型有機元素分析儀、TC／EA高溫裂解分析儀、GasBench II多功能氣體制備裝置、Trace GC 2000型氣相色譜儀和Kiel IV碳酸鹽反應裝置等多臺外設，通過(guò)與同位素質(zhì)譜儀的聯(lián)用可在線(xiàn)分析各類(lèi)地質(zhì)樣品的碳、氮、氫和氧同位素組成。近年來(lái)，實(shí)驗室運用氣體穩定同位素分析技術(shù)，開(kāi)展了古環(huán)境、古氣候、古生態(tài)和同位素地球化學(xué)過(guò)程等方面的研究。同時(shí)，實(shí)驗室技術(shù)人員還不斷拓展儀器功能和開(kāi)發(fā)新方法，如磷酸鹽氧同位素的制備與分析、碳酸鹽耦合同位素（clumped isotopes）的分析等,為古環(huán)境研究提供了新的強有力的技術(shù)手段。環(huán)境同位素實(shí)驗室對國內外研究人員高質(zhì)開(kāi)放，歡迎前來(lái)開(kāi)展合作研究。

　　　　
儀器介紹：

MAT253同位素比值質(zhì)譜儀是目前國際上最先進(jìn)的氣體穩定同位素分析儀器，由美國Thermo Scientific公司制造，于2003年引進(jìn)。它具有較寬的質(zhì)量數范圍（1-150道爾頓），較高的靈敏度（離子／800分子），質(zhì)量分辨率可達200。MAT253穩定同位素比值質(zhì)譜儀提供 D/H、 13C/ 12C、15N/ 14N、18O/16O和29Si/ 28Si同位素比值的高精度測定。

　　同位素質(zhì)譜儀分析原理：

　　首先將樣品轉化為純的氣體，待測氣體通過(guò)擴散或He載氣攜帶進(jìn)入離子源，在電子轟擊作用下變?yōu)閹щ姾傻碾x子，然后經(jīng)過(guò)電場(chǎng)加速后進(jìn)入磁場(chǎng)，根據質(zhì)荷比（m/z）的大小以不同半徑發(fā)生偏轉，從而實(shí)現對不同質(zhì)量數的同種分子的分離，最后不同質(zhì)荷比的帶電離子分別被不同位置上的接收杯所接收、計數，通過(guò)計算給出同位素組成。下圖為CO₂氣體各同位素的分離、檢測示意圖。

成果展示：

實(shí)驗室發(fā)表論文：　　　　

Amiot, R., Wang, X., Zhou, Z., Wang, X., Lécuyer, C., Buffetaut, E., Fluteau, F., Ding, Z., Kusuhashi, N., Mo, J., Philippe, M., Suteethom, V., Wang, Y., Xu, X., Environment and ecology of East Asian dinosaurs during the Early Cretaceous inferred from stable oxygen and carbon isotopes in apatite. Journal of Asian Earth Sciences. 2015, 98: 358-370
Cui L.L., Wang X., Determination of clumped isotopes in carbonate using isotope ratio mass spectrometer: Effects of extraction potential and long-term stability. International Journal of Mass Spectrometry, 2014, 372: 46-50
Cui L.L., Wang X., Determination of carbon and oxygen isotopes of geological samples with a complicated matrix: comparison of different analytical methods. Analytical Methods, 2014, 6 (22): 9173-9178
Chen, Z.L.,Wang, X., Hu, J.F., Yang, S.L., Zhu, M., Dong, X.X., Tang, Z.H., Peng, P.A., Ding, Z.L., Structure of the carbon isotope excursion in a high-resolution lacustrine Paleocene-Eocene Thermal Maximum record from central China. Earth and Planetary Science Letters. 2014, 408: 331-340
Wang X., Cui L.L., Xiao J.L., Stable carbon isotope of black carbon in lake sediments as an indicator of terrestrial environmental changes: An evaluation on paleorecord from Daihai Lake, Inner Mongolia, China. Chemical Geology, 2013, 347: 123-134
Liu L., Song,Y., Cui L.L., Stable carbon isotopic composition of black carbon in surface soil as a proxy for reconstructing vegetation on the Chinese Loess Plateau, Palaeogeography Palaeoclimatology Palaeoecology, 2013, 388:109-114
Wang X., Ding Z.L., Peng P.A., Changes in fire regimes on the Chinese Loess Plateau since the last glacial maximum and implications for linkages to paleoclimate and past human activity. Palaeogeography, Palaeoclimatology, Palaeoecology, 2012, 315: 61-74
Yang, S.L., Ding, Z.L.,Wang, X., Tang, Z.H., Gu, Z.Y.,Negative delta O-18-delta C-13 relationship of pedogenic carbonate from northern China indicates a strong response of C-3/C-4 biomass to the seasonality of Asian monsoon precipitation, Palaeogeography, Palaeoclimatology, Palaeoecology, 2012, 317: 32-40
Yi, H., Li, T. J., Wang, X., Zhang, F. S., Huo, W. G., Yi, W., Amount of substance measurement homogeneity principle: the discrepancy between XRCD and watt balance results. Metrologia, 2012, 49, 62-69
Sun, J. M., Lü, T. Y., Zhang, Z. Q., Wang, X., Liu, W. G., Stepwise expansions of C4 biomass and enhanced seasonal precipitation and regional aridity during the Quaternary on the southern Chinese Loess Plateau. Quaternary Science Reviews, 2012, 34, 57-65
Ma, Z. B., Cheng, H., Tan, M., Edwards, R. L., Li, H. C., You, C. F., Duan, W. H., Wang, X., Kelly, M. J., Timing and structure of the Younger Dryas events in northern China. Quaternary Science Reviews, 2012,41, 83-93
Zhai, D. Y., Xiao, J. L., Zhou, L., Wen, R. L., Chang, Z. G., Wang, X., Jin, X. D., Holocene East Asian monsoon variation inferred from species assemblage and shell chemistry of the ostracodes from Hulun Lake, Inner Mongolia. Quaternary Research, 2011,75, 512-522
Amiot, R., Wang, X., Zhou, Z.H., Wang, X.L., Buffetaut, E., Lecuyer, C, Ding, Z.L., Fluteau, F., Hibino, T., Kusuhashi, N., Mo, J.Y., Suteethorn, V., Wang, Y.Q., Xu, X., Zhang, F.S. Oxygen isotopes of East Asian dinosaurs reveal exceptionally cold Early Cretaceous climates, Proceedings of the National Academy of Sciences of the United States of America, 2011, 108 (13): 5179-5183
Amiot, R., Wang, X., Lecuyer, C., Buffetaut, E., Boudad, L., Cavin, L., Ding, Z.L., Fluteau, F., Kellner, A.W.A., Tong, H.Y., Zhang, F.S., Oxygen and carbon isotope compositions of middle Cretaceous vertebrates from North Africa and Brazil: Ecological and environmental significance, Palaeogeography, Palaeoclimatology, Palaeoecology, 2010, 297 (2): 439-451
Zhu, M., Ding, Z.L., Wang, X., Chen, Z.L., Jiang, H.C., Dong, X.X., Ji, J.L.,Tang, Z.H., Luo, P., High-resolution carbon isotope record for the Paleocene-Eocene thermal maximum from the Nanyang Basin, Central China, Chinese Science Bulletin, 2010, 55 (31): 3606-3611
Wang, X., Feng, L. J., Zhang, F. S. and Ding, Z. L., On-line measurements of d15N in biological fluids by a modified continuous-flow elemental analyzer with an isotope-ratio mass spectrometer. Rapid Commun. Mass Spectrom., 2008, 22: 1196-1202
Cai, B., Edwards, R. L., Cheng, H., Tan, M., Wang, X. and Liu, T., A dry episode during the Younger Dryas and centennial-scale weak monsoon events during the early Holocene: A high-resolution stalagmite record from southeast of the Loess Plateau, China. Geophys. Res. Lett., 2008,35, L02705, doi:10.1029/2007GL030986.
崔琳琳，王旭，沈吉，丁仲禮，末次盛冰期以來(lái)瀘沽湖沉積記錄的正構烷烴分布特征和單體碳同位素組成及其古植被意義，第四紀研究，2015，35（4）：871-880
崔琳琳，王旭，Gas Bench II/IRMS測定碳酸鹽氧同位素：酸分餾系數差異的討論，地球環(huán)境學(xué)報，2013，3（4）： 923-928
杜廣鵬，王旭，張福松. GasBench II 頂空瓶?jì)瓤諝獗尘皩?lt;100μg碳酸鹽中碳氧同位素在線(xiàn)測定的影響及校正方法初探. 巖礦測試，2010, 29 (6), 631-638
王旭, 張福松, 丁仲禮, EA-Conflo-IRMS聯(lián)機系統的燃燒轉化率漂移及其對氮、碳同位素比值測定的影響. 質(zhì)譜學(xué)報, 2006, 27, 104-109.

實(shí)驗室成員：

　　王旭：博士，副研究員，第四紀地質(zhì)學(xué)專(zhuān)業(yè)，目前為環(huán)境同位素實(shí)驗室技術(shù)負責人。主要研究方向為古氣候與古環(huán)境研究，包括：古火歷史重建及其與氣候和人類(lèi)活動(dòng)關(guān)系研究、地質(zhì)時(shí)期高溫期（如PETM時(shí)期）古氣候研究等。同時(shí)，負責穩定同位素質(zhì)譜儀的功能拓展與新方法開(kāi)發(fā)。

　　Email: xuking@mail.iggcas.ac.cn
　　電話(huà)： 010-82998581
　　辦公地點(diǎn)：實(shí)驗樓213房間

　　崔琳琳：碩士，高級工程師，環(huán)境科學(xué)專(zhuān)業(yè)。主要負責儀器的日常維護及運行，參與儀器新方法的研究。

　　Email: cuilinlin@mail.iggcas.ac.cn
　　電話(huà)： 010-82998581
　　辦公地點(diǎn)：實(shí)驗樓213房間

收費須知：

測試項目	樣品	樣品量	所內收費元/個(gè)	所外收費元/個(gè)
碳、氧同位素 d¹³C、d¹⁸O	方解石、白云石、灰巖等	10毫克 200目	250	300
有機碳d¹³C	瀝青、干酪根、動(dòng)物、昆蟲(chóng)組織、土壤等	不少于100ug C 200目	300	350
氮同位素d¹⁵N	瀝青、干酪根、動(dòng)物、昆蟲(chóng)組織、土壤等	不少于100ug N 200目	300	350
氧同位素d¹⁸O	磷酸鹽、硫酸鹽、硝酸鹽、有機物等	不少于100ug O 200目	350	400

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