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Neptune/Element (ICP²) Lab


The (ICP)² laboratory at UC Davis consists of two inductively coupled plasma mass spectrometers: a Thermo Scientific Neptune Plus MC-ICP-MS and a Thermo Scientific Element XR HR-ICP-MS.

Both instruments are capable of solution sample introduction or using a Photon Machines Analyte 193H excimer laser ablation system.  In addition to direct solution introduction using a quartz spray chamber, an ESI APEX (Element Scientific Inc.) and DSN-100 (Nu Instruments) desolvating system can be used to increase sensitivity.

Thermo Neptune Plus MC-ICPMS

The UC Davis Neptune Plus MC-ICPMS is equipped with nine Faraday cup detectors and one secondary electron multiplier.  Interchangeable low noise amplifier boards (ranging from 10¹⁰ to 10¹² ohm resistors allow for a large dynamic range of signals that can be analyzed with high-precision and high-sensitivity. Elements/isotopes routinely measured using the Neptune Plus include:
B, Li, Mg, Ca, Cr, Ti, Hf, Lu, W, Pb, and U.

Thermo Element XR HR-ICPMS

The UC Davis Element XR HR-ICPMS is a high-resolution magnetic sector-field ICPMS with a dual mode SEM and Faraday detector capable of a large dynamic range of signal intensity (up to 10¹² orders of magnitude).  Used for both ultra trace element and major element analyses, the Element XR has three fixed resolutions modes (with mass resolving power >300, >4000, and >10,000 for low-, medium-, and high-resolution, respectively).

Photon Machines Analyte 193H Laser Ablation

The Analyte 193H is a new generation ultra-short pulse excimer laser ablation system manufactured by Photon Machines Inc. (now Teledyne Photon Machines).  The key features of the Analyte 193H are:

-Short pulse duration (4 ns) for less elemental fractionation and less thermal effect on the target material

-Dual volume sample ablation cell (HelEx) that can accommodate large, irregularly shaped samples

-Independent laser and optical imaging paths

New Yin Lab Papers


  • H. Huang, M. Huyskens, Q.-Z. Yin, P. Cawood, M.-C. Hou, J.-H. Yang, F.-H. Xiong, Y.-S. Du, and C. Yang (2022) Eruptive tempo of Emeishan large igneous province: relations to biotic crises and paleoclimate changes around the Guadalupian-Lopingian boundary. Geology (Accepted on April 27, 2022) https://doi.org/10.1130/G50183.1


  • Z. W. Lan, M. H. Huyskens, G. Le Hir, R. Mitchell, Q.-Z. Yin, G. Y. Zhang, and X.-H. Li, (2022)Massive volcanism may have foreshortened the Marinoan snowball Earth. Geophysical Research Lettershttps://doi.org/10.1029/2021GL097156
  • Z.-Q. Yu, L.-P. Dong, M. H. Huyskens, Q.-Z. Yin, Y. Wang, C.-L. Deng, and H.-Y. He (2022) The exceptionally preserved Early Cretaceous Moqi Fauna from eastern Inner Mongolia, China, and its age relationship with the Jehol Biota. Palaeogeography, Palaeoclimatology, Palaeoecology 589, 110824 https://doi.org/10.1016/j.palaeo.2021.110824


  • M. Liu, P. Jiang, L-Y. Lu, T.-H. Yin, L.-Y. Ma, M. Cheng, Q.-Z. Yin, H. Gao (2021) Strong isotope-dependent photodissociation branching ratios of N2 and their potential implications for the 14N/15N isotope fractionation in Titan’s atmosphere. Astrophysical Journal , 923:196 (10pp) https://doi.org/10.3847/1538-4357/ac2f97


  • M-H. Zhu, A. Morbidelli, W. Neumann, Q.-Z. Yin, J. M. D. Day, D. C. Rubie, G. J. Archer, N. Artemieva, H. Becker, K. Wünnemann (2021) Common feedstocks of late accretion for the terrestrial planets. Nature Astronomy 5, 1286-1296. https://doi.org/10.1038/s41550-021-01475-0


  • Z. Vaci, J. M. D. Day, M. Paquet, K. Ziegler, Q.-Z. Yin, S. Dey, A. Miller, C. Agee, R. Bartoschewitz, and A. Pack (2021) Olivine-rich achondrites from Vesta and the missing mantle problem. Nature Communications 12, 5443. https://doi.org/10.1038/s41467-021-25808-9


  • C. A. Goodrich, M. E. Sanborn, Q.-Z. Yin, I. Kohl, D. Frank, R. T. Daly, K. J. Walsh, M. E. Zolensky, E. R. D. Young, P. Jenniskens, and M. H. Shaddad (2021) Chromium Isotopic Evidence for Mixing of NC and CC Reservoirs in Polymict Ureilites: Implications for Dynamical Models of the Early Solar System. The Planetary Science Journal, 2:13 (15pp), https://doi.org/10.3847/PSJ/abd258


  • C. Williams, M. E. Sanborn, C. Defouilloy, Q.-Z. Yin, N. T. Kita, D. S. Ebel, A. Yamakawa, K. Yamashita (2020) Chondrules Reveal Large-Scale Outward Transport of Inner Solar System Materials in the Protoplanetary DiskProceedings of the National Academy of Sciences. 117 (38) 23426-23435. https://www.pnas.org/content/early/2020/09/01/2005235117


  • W. Y. Liu, Y.G. Zhang, Q.-Z. Yin, Y. Zhao and Z.G. Zhang (2020) Magnesium partitioning between silicate melt and liquid iron using first-principles molecular dynamics: implications for the early history of the Earth. Earth and Planetary Science Letters 531, 115934.  https://doi.org/10.1016/j.epsl.2019.115934.


  • S. Y. Liao, M. H. Huyskens, Q.-Z. Yin, B. Schmitz (2020) Absolute dating of the L- chondrite parent body breakup with high-precision U-Pb zircon geochronology from Ordovician limestone. Earth and Planetary Science Letters 547, 116442. https://doi.org/10.1016/j.epsl.2020.116442  


  • R. Merle, Y. Amelin, Q.-Z. Yin, M. Huyskens, M. Sanborn, K. Nagashima, K. Yamashita, T. Ireland, A. Krot, M. J. Sieber (2020) Exploring the efficiency of stepwise dissolution in removal of stubborn non-radiogenic Pb in chondrule U-Pb dating. Geochimica et Cosmochimica Acta 277, 1–20. https://doi.org/10.1016/j.gca.2020.03.010



  • P. Jenniskens, N. Moskovitz, L. A. J. Garvie, Q.-Z. Yin, J. A. Howell, D. L. Free, J. Albers, D. Samuels, M. D. Fries, P. Mane, D. R. Dunlap, K. Ziegler, M. Sanborn, Q. Zhou, Q.-L. Li, X.-H. Li, Y. Liu, G.-Q. Tang, K. Welten, M. W. Caffee, H. Busemann, M. M. M. Meier, and D. Nesvorny (2020) Orbit and origin of the LL7 chondrite Dishchii’bikoh (Arizona). Meteoritics and Planetary Science. 55, 535–557 https://doi.org/10.1111/maps.13452


  • Y. T. Lin, Y. Zhang, S. Hu, Y. Xu, W. Zhou, S. J. Li, W. Yang, Y. Gao, M. Li, Q.-Z. Yin, D. Lin, W. Ip. (2020). Concepts of the small body sample return missions – The 1st 10 Ma year evolution of the solar system. Space Science Reviews (2020) 216:45. https://doi.org/10.1007/s11214-020-00670-1



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