نتایج جستجو برای: icp ms dating
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Fault- and fracture-hosted multi-stage mineral assemblages that formed by fracture reactivation fluid migration, constitute archives of the tectonic evolution Precambrian cratons. Complex intergrowth patterns these records often hinder absolute dating mineralization events for geological models. We apply LA-ICP-MS/MS in situ Rb-Sr single crystal growth zones sub-mm-wide vein including illite, K...
Cadmium in blood (Cd-B) is an important indicator, next to Cd in urine, in biological monitoring of exposure to Cd. The present study was initiated to examine compatibility in results of analysis for Cd-B between graphite furnace atomic absorption spectrophotometry (GFAAS) and inductively-coupled plasma mass-spectrometry (ICP-MS). For this purpose, 1,159 blood samples were collected from adult ...
In the present study. the metal-containing proteins in the roots ofCu-tole rant plant ElsllOltzia splendens were investigated. The proteins from the plant roots were extracted and separated by two-dimensional gel electrophoresis (2D GE). Las er ablation inductively coupl ed plasma mass spectrometry (LA-ICP-MS) was used to screen metal-containing proteins on the dried 2D gels. Images of Cu. Zn. ...
Gadolinium (Gd)-based magnetic resonance imaging (MRI) contrasting agents interfere with the determination of selenium (Se) when analysed by single quadrupole inductively coupled plasma-mass spectrometry (ICP-MS). This paper demonstrates that an ICP-triple quadrupole-MS (ICP-QQQ-MS) with oxygen mass shift overcomes Gd(++) interference on Se(+) and mitigates typically encountered matrix and spec...
The Agilent 8800 Triple Quadrupole ICP-MS, also referred to as ICP-QQQ, delivers excellent reaction cell performance due to its MS/MS reaction mode, which is unique to ICP-QQQ. The fi rst quadrupole (Q1), before the Octopole Reaction System (ORS3) cell, operates as a 1 amu mass fi lter, strictly controlling the ions that enter the reaction cell. Only ions with the target analyte mass enter the ...
This paper presents new U–Th ages obtained by LA-MC-CP-MS (laser ablation - multi-collector inductively coupled plasma mass spectrometry) on coral samples from a sedimentary core of the Tunis lagoon. The and calculated ( 234 U/ 238 U) 0 initial ratios, similar to seawater value for most corals demonstrate that they behaved as closed systems, or with only very limited loss U 230 Th. (from 196 18...
Xanthates are commonly used collectors in flotation processes but highly toxic to the aquatic environment. However, there few methods for reliable determination of low xanthate concentrations water samples. In this work, a sensitive, selective, and fast method is presented potassium ethyl (KEX). KEX was determined by high-performance liquid chromatography–inductively coupled plasma–mass spectro...
Biomonitoring for manganese (Mn) exposure is important due to its potential to cause adverse health effects. In this study, we investigate how different sample preparation methods (simple dilution, digestion, volumetric, gravimetric), calibration protocols (aqueous, blood-based, standard additions), and instrumental techniques affect Mn method bias and analytical imprecision. The techniques use...
Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) refers to the use of ICP-MS as a counting technique. When measurements are performed at very high data acquisition frequencies,...
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