Structural Effects of Aluminum and Iron Occupancy in Minerals of the Jarosite-Alunite Solid Solution [0.03%]
铝和铁在针铁矿-碱式硫酸铝固溶体中的占有对矿物结构的影响
Andrew R C Grigg,Luiza Notini,Ralf Kaegi et al.
Andrew R C Grigg et al.
The alunite supergroup of minerals contains several hydroxysulfate mineral phases that commonly occur in acidic natural and engineered environments. The main division of the mineral supergroup defines two minerals, jarosite and alunite, bas...
Brianna H Matthews,Alyssa N Alsante,Sarah D Brooks
Brianna H Matthews
Pollen grains significantly contribute to the aerosol population, and levels are predicted to increase in the future. Under humid atmospheric conditions, pollen grains can rupture creating pollen grain fragments referred to as subpollen par...
Role of Low-Energy (<20 eV) Secondary Electrons in the Extraterrestrial Synthesis of Prebiotic Molecules [0.03%]
低能（低温）辐照的作用
Qin Tong Wu,Hannah Anderson,Aurland K Watkins et al.
Qin Tong Wu et al.
We demonstrate for the first time that Galactic cosmic rays with energies as high as ∼1010 eV can trigger a cascade of low-energy (
Methodologies for 176Lu-176Hf Analysis of Zircon Grains from the Moon and Beyond [0.03%]
月球及其它天体锆石颗粒的176Lu-176Hf分析方法研究
Xi Chen,Nicolas Dauphas,Zhe J Zhang et al.
Xi Chen et al.
Zircons are found in extraterrestrial rocks from the Moon, Mars, and some differentiated meteorite parent-bodies. These zircons are rare, often of small size, and have been affected by neutron capture induced by cosmic ray exposure. The app...
Stability of Coumarins and Determination of the Net Iron Oxidation State of Iron-Coumarin Complexes: Implications for Examining Plant Iron Acquisition Mechanisms [0.03%]
香豆素的稳定性及铁-香豆素复合物中铁的净氧化态的测定：对研究植物铁吸收机理的意义
Kyounglim Kang,Walter D C Schenkeveld,Guenther Weber et al.
Kyounglim Kang et al.
Coumarins are exuded into the soil environment by plant roots in response to iron (Fe) deficiency. Previous studies have shown that coumarins can increase the Fe solubility upon interaction with sparsely soluble Fe(III) (hydr)oxide. However...
Competition between Dissolved Organic Matter and Freshwater Plankton Control Methylmercury Isotope Fractionation during Uptake and Photochemical Demethylation [0.03%]
溶解有机质与淡水浮游生物在甲基汞吸收和光化学脱甲基作用过程同位素分馏中的竞争关系
Grace J Armstrong,Sarah E Janssen,Brett A Poulin et al.
Grace J Armstrong et al.
Isotope fractionation related to photochemical reactions and planktonic uptake at the base of the food web is a major uncertainty in the biological application of mercury (Hg) stable isotopes. In freshwater systems, it is unclear how compet...
Investigation of Ozone Formation Chemistry during the Salt Lake Regional Smoke, Ozone, and Aerosol Study (SAMOZA) [0.03%]
盐湖地区烟雾、臭氧和气溶胶研究（SAMOZA）期间的臭氧形成化学研究
Matthew Ninneman,Seth Lyman,Lu Hu et al.
Matthew Ninneman et al.
Salt Lake City (SLC), UT, is an urban area where ozone (O3) concentrations frequently exceed health standards. This study uses an observationally constrained photochemical box model to investigate the drivers of O3 production during the Sal...
Ziying Lei,Bo Chen,Sarah D Brooks
Ziying Lei
Aerosol acidity significantly influences heterogeneous chemical reactions and human health. Additionally, acidity may play a role in cloud formation by modifying the ice nucleation properties of inorganic and organic aerosols. In this work,...
A Robust Capillary Electrophoresis with Laser-Induced Fluorescence Detection (CE-LIF) Method for Quantitative Compositional Analysis of Trace Amino Acids in Hypersaline Samples [0.03%]
一种鲁棒的毛细管电泳激光诱导荧光检测(CE-LIF)方法，用于高盐样品中痕量氨基酸的定量组成分析
K Marshall Seaton,Chad I Pozarycki,Nickie Nuñez et al.
K Marshall Seaton et al.
The search for life in our solar system can be enabled by the characterization of extreme environments representing conditions expected on other planets within our solar system. Molecular abundances observed in these environments help estab...
Determination of Rare Earth Element Isotopic Compositions Using Sample-Standard Bracketing and Double-Spike Approaches [0.03%]
样品-标准夹持法和双 spike 法确定稀土元素同位素组成
Justin Y Hu,Francois L H Tissot,Reika Yokochi et al.
Justin Y Hu et al.
Rare earth elements (REEs) have been found to have numerous uses to trace geological and cosmochemical processes through analyses of elemental patterns, radioactive decay, nucleosynthetic anomalies, and cosmogenic effects. Stable isotopic f...