In situ Rb-Sr dating by collision cell, multicollection inductively-coupled plasma mass-spectrometry with pre-cell mass-filter, (CC-MC-ICPMS/MS) [0.03%]
基于碰撞单元和前置质量分析器的原位Rb-Sr定年技术
Dan Bevan,Christopher D Coath,Jamie Lewis et al.
Dan Bevan et al.
We document the utility for in situ Rb-Sr dating of a one-of-a-kind tribrid mass spectrometer, 'Proteus', coupled to a UV laser ablation system. Proteus combines quadrupole mass-filter, collision cell and sector magnet with a multicollectio...
Speciation of iron sulfide compounds by means of X-ray Emission Spectroscopy using a compact full-cylinder von Hamos spectrometer [0.03%]
采用紧凑型全圆筒von Hamos光谱仪的X射线发射光谱法研究铁硫化物的物种分离问题
Malte Wansleben,John Vinson,André Wählisch et al.
Malte Wansleben et al.
We present experimental and theoretical X-ray emission spectroscopy (XES) data of the Fe Kβ line for Iron(II)sulfide (FeS) and Iron(II)disulfide (FeS2). In comparison to X-ray absorption spectroscopy (XAS), XES offers different discriminat...
Frank Gyngard,Matthew L Steinhauser
Frank Gyngard
Investigation of biological processes at the single cell or subcellular level is critical in order to better understand heterogenous cell populations. Nanoscale secondary ion mass spectrometry (NanoSIMS) enables multiplexed, quantitative im...
Sample preparation with sucrose cryoprotection dramatically alters Zn distribution in the rodent hippocampus, as revealed by elemental mapping [0.03%]
蔗糖冷冻保护样品制备技术显著改变啮齿动物海马区锌的分布状况——基于元素成像技术的新发现
M J Pushie,A Hollings,J Reinhardt et al.
M J Pushie et al.
Transition metal ions (Fe, Mn, Cu, Zn) are essential for healthy brain function, but altered concentration, distribution, or chemical form of the metal ions has been implicated in numerous brain pathologies. Currently, it is not possible to...
Correlative microscopy of freeze-dried cells and studies on intracellular calcium stores with imaging secondary ion mass spectrometry (SIMS) [0.03%]
冷冻干燥细胞的相关显微镜研究及利用成像二次离子质谱(SIMS)对胞内钙库的研究
Subhash Chandra
Subhash Chandra
Secondary ion mass spectrometry (SIMS)-based imaging techniques have become effective tools for studies of elements and molecules in biological samples. In the current work, a correlative microscopy approach was applied to cryogenically pre...
An overview of NRL's NAUTILUS: a combination SIMS-AMS for spatially resolved trace isotope analysis [0.03%]
NAUTILUS综合SIMS-AMS系统概述：纳尔卡实验室(NRL)实现亚微米尺度的同位素分析能力
Evan E Groopman,David G Willingham,Albert J Fahey et al.
Evan E Groopman et al.
We present a description of the capabilities and performance of the NAval Ultra-Trace Isotope Laboratory's Universal Spectrometer (NAUTILUS) at the U.S. Naval Research Laboratory. The NAUTILUS combines secondary ion mass spectrometry (SIMS)...
Characterization of Arsenic in dried baby shrimp (Acetes sp.) using synchrotron-based X-Ray Spectrometry and LC coupled to ICP-MS/MS [0.03%]
基于同步辐射X射线的砷形态分析及其与LC-ICP MS/MS联用分析婴儿虾干（Acetes）中砷的研究
Diana Guimarães,Austin A Roberts,Mina W Tehrani et al.
Diana Guimarães et al.
The arsenic content of dried baby shrimp (Acetes sp.) was investigated as part of an independent field study of human exposure to toxic metals/metalloids among the ethnic Chinese community located in Upstate New York. The dried baby shrimp ...
Analytical considerations associated with implementing M2+ correction factors to address false positives on As and Se within U.S. EPA method 200.8 [0.03%]
美国EPA方法200.8中砷和硒假阳性的M2+校正因子实施相关的分析考量
Skyler W Smith,Nicole Hanks,Patricia A Creed et al.
Skyler W Smith et al.
Rare earth elements (REE) can produce M2+ ions in ICP-MS and 150Nd2+, 150Sm2+, and 156Gd2+ can produce false positives on 75As and 78Se. Alternative instrumental tuning conditions, that utilize lower He flows within the collision cell, redu...
Three Dimensional Secondary Ion Mass Spectrometry Imaging (3D-SIMS) of Aedes aegypti ovarian follicles [0.03%]
利用三维二次离子质谱法（3D-SIMS）对埃及伊蚊卵巢卵泡进行成像分析
Anthony Castellanos,Cesar E Ramirez,Veronika Michalkova et al.
Anthony Castellanos et al.
The mobilization of nutrient reserves into the ovaries of Aedes aegypti mosquitoes after sugar-feeding plays a vital role in the female's reproductive maturation. In the present work, three-dimensional secondary ion mass spectrometry imagin...
Ultra-trace element analysis of human follicular fluid by ICP-MS/MS: pre-analytical challenges, contamination control, and matrix effects [0.03%]
ICP-MS/MS测定人卵泡液中痕量元素的预分析挑战、质控和基体效应
Aubrey L Galusha,Aubreian C Haig,Michael S Bloom et al.
Aubrey L Galusha et al.
Follicular fluid (FF), which is the fluid that envelops the developing oocyte (egg cell) in the ovary, can be analyzed to assess trace element content as well as to determine potential exposure to toxic elements in women seeking in vitro fe...