Quantitative fluoride imaging of teeth using CaF emission by laser induced breakdown spectroscopy [0.03%]
利用激光诱导击穿光谱技术进行牙齿定量氟成像的新方法——CaF发射线检测法
Mauro Martinez,G Jean Harry,Erin N Haynes et al.
Mauro Martinez et al.
In this work, we propose the use of molecular emission of calcium fluoride (CaF) by laser induced breakdown spectroscopy (LIBS) to obtain quantitative fluoride distribution images of teeth. LIBS has proved to be an efficient technique to de...
Evan E Groopman,Todd L Williamson,David S Simons
Evan E Groopman
We have investigated the use of negative molecular oxygen primary ion beams (i.e., O2 - and O3 -) to determine the benefits of using such beams for uranium particle SIMS analyses. Typically, O- is the most practical negative primary ion spe...
Quantification of local zinc and tungsten deposits in bone with LA-ICP-MS using novel hydroxyapatite-collagen calibration standards [0.03%]
利用新型羟基磷灰石-胶原校准标样进行LA-ICP-MS法测定骨局部锌和钨沉积量
Cassidy R VanderSchee,David Frier,David Kuter et al.
Cassidy R VanderSchee et al.
Tungsten has recently emerged as a potential toxicant and is known to heterogeneously deposit in bone as reactive polytungstates. Zinc, which accumulates in regions of bone remodeling, also has a heterogenous distribution in bone. Determini...
An evaluation of M2+ interference correction approaches associated with As and Se in ICP-MS using a multi-day dataset along with ICP-MS/MS/HR-ICP-MS based analysis and hierarchical modeling as a means of assessing bias in fortified drinking waters and single component matrices [0.03%]
基于多天数据集评估ICP-MS中砷和硒的M2+干扰矫正方法，并采用ICP-MS/MS/HR-ICP-MS分析以及层次模型评估强化饮用水和单一组分基质中的偏差
Skyler W Smith,Roy W Martin,Nicole Hanks et al.
Skyler W Smith et al.
Three 1 2 mass oriented rare earth element (REE) M2+ correction approaches (fixed factor, a dual internal standard, and an in-sample) are evaluated for use in an ICP-MS environmental method update. The multi-variant-based evaluation incl...
Correction: Precise measurement of selenium isotopes by HG-MC-ICPMS using a 76-78 double-spike [0.03%]
纠正：使用76-78双 spike进行HG-MC-ICPMS硒同位素的精确定量
Marie-Laure Pons,Marc-Alban Millet,Geoff N Nowell et al.
Marie-Laure Pons et al.
[This corrects the article DOI: 10.1039/C9JA00331B.]. This journal is © The Royal Society of Chemistry.
Calibration Approaches for Measurement of Aerosol Multielemental Concentration using Spark Emission Spectroscopy [0.03%]
火花发射光谱法测量气溶胶多元素浓度的定标方法研究
L Zheng,P Kulkarni,D D Dionysiou
L Zheng
A multivariate calibration approach, using partial least squares regression, has been developed for measurement of aerosol elemental concentration. A training set consisting of 25 orthogonal aerosol samples with 9 factors (elements: Cr, Mn,...
Fundamental studies on droplet throughput and the analysis of single cells using a downward-pointing ICP-time-of-flight mass spectrometer [0.03%]
基于向下型ICP-ToF-MS单细胞分析通量及单细胞分析研究基础性工作
Thomas Vonderach,Detlef Günther
Thomas Vonderach
Capabilities of the downwardly oriented inductively coupled plasma mass spectrometer (ICP-MS) recently reported (Vonderach et al. 2021) were studied using a time-of-flight mass spectrometer (TOFMS) yielding benefits for the fast detection o...
David J Cocovi-Solberg,Stephan Schnidrig,Stephan Hann
David J Cocovi-Solberg
Turbulent flow chromatography is an online solid phase extraction mode that achieves the extraordinary effect of proxying an upper molecular weight cutoff for the retained molecules, based on loading the sample at high linear velocities. De...
LA-ICP-MS using a nitrogen plasma source [0.03%]
氮气等离子体源激光剥蚀-inductively coupled plasma-mass spectrometry技术
Christoph Neff,Pascal Becker,Bodo Hattendorf et al.
Christoph Neff et al.
Here we describe the first study of a nitrogen based inductively coupled plasma mass spectrometry system in conjunction with laser ablation (LA-(N2-ICP)-MS). Therefore, a microwave-sustained, inductively coupled, atmospheric-pressure plasma...
Long-term repeatability and interlaboratory reproducibility of high-precision ID-TIMS U-Pb geochronology [0.03%]
高精度ID-TIMS U-Pb同位素定年的长期重复性与实验室间再现性
Urs Schaltegger,Maria Ovtcharova,Sean P Gaynor et al.
Urs Schaltegger et al.
Age determination of minerals using the U-Pb technique is widely used to quantify time in Earth's history. A number of geochronology laboratories produce the highest precision U-Pb dates employing the EARTHTIME 202Pb-205Pb-233U-235U tracer ...