نتایج جستجو برای: icp ms dating

تعداد نتایج: 146898  

Journal: :Journal of chromatography. A 1997
K Sutton R M Sutton J A Caruso

Inductively coupled plasma mass spectrometry (ICP-MS) is now a well established detection technique for liquid chromatography, gas chromatography, supercritical fluid chromatography and capillary electrophoresis. A review of the literature with particular regard to ICP-MS as a chromatographic and capillary electrophoretic detector is presented. The various modes of chromatography and capillary ...

2003
Geoff Tyler Jobin Yvon

This article will briefly describe these three techniques, and point out the important criteria by which to judge their applicability to your own analytical problems. Table 1 below shows a checklist of common analytical requirements and may help in the assessment of the techniques. For many people with an ICP-OES background, ICP-MS is a plasma with a mass spectrometer as a detector. Mass spectr...

Journal: :Geochronology 2021

Abstract. Recent U–Pb dating by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has demonstrated that reasonable precision (3 %–10 %, 2σ) can be achieved for high-resolution of texturally distinct calcite phases. Absolute dolomite, which biostratigraphy and traditional techniques are very limited, remains challenging, although it may resolve many fundamental questions re...

2004
M. V. Zoriy L. Halicz M. E. Ketterer C. Pickhardt P. Ostapczuk J. S. Becker

The main factors affecting the accurate and precise determination of U using ICP-MS are instrumental background, the isobaric interference of UH molecular ion on U analyte ions, and the presence of U and U peak tails. An optimized analytical method for attenuating the influence of these factors on uranium isotope ratio measurements at ultratrace level of environmental samples has been developed...

2010
Junichi Takahashi

Agilent ICP-MS systems have become the benchmark for accurate low-level analysis of trace contaminants across a wide range of high-purity chemicals used in the semiconductor industry. As the first commercial ICP-MS to offer reliable and routine cool plasma operation, the Agilent 4500 Series ICP-MS set the standard for low level analysis of the previously problematic elements Na, K, Ca and Fe. B...

Journal: :Analytical and bioanalytical chemistry 2012
Claire L Camp Barry L Sharp Helen J Reid John Entwisle Heidi Goenaga-Infante

The determination of total deoxyribonucleic acid (DNA) concentration is of great importance in many biological and bio-medical analyses. The quantification of DNA is traditionally performed by UV spectroscopy; however the results can be affected greatly by the sample matrix. The proposed method quantifies phosphorus in digested calf thymus DNA and human DNA by high performance liquid chromatogr...

2012
Patrick H. Donohue Antonio Simonetti Clive R. Neal

Seven ilmenite (FeTiO3) megacrysts derived from alnöite pipes (Island of Malaita, Solomon Islands) were characterised for their major and trace element compositions in relation to their potential use as secondary reference materials for in situ microanalysis. Abundances of thirteen trace elements obtained by laser ablation ICP-MS analyses (using the NIST SRM 610 glass reference material) were c...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2007
Koji Oshita Osamu Noguchi Mitsuko Oshima Shoji Motomizu

A chelating resin, cross-linked chitosan modified with the glycine moiety (glycine-type chitosan resin), was developed for the collection and concentration of bismuth in aquatic samples for ICP-MS measurements. The adsorption behavior of bismuth and 55 elements on glycine-type chitosan resin was systematically examined by passing a sample solution containing 56 elements through a mini-column pa...

Journal: :Journal of the Spectroscopical Society of Japan 2007

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