نتایج جستجو برای: icp ms
تعداد نتایج: 132077 فیلتر نتایج به سال:
Rapid semiquantitative elemental screening of pharmaceutical samples is described using the Agilent 7500ce ICP-MS with helium as collision gas. Polyatomic interferences are eliminated in the He pressurized cell, enabling rapid elemental profiling of pharmaceutical tablets for screening purposes. Elements which normally suffer from polyatomic interferences have been included in the semiquantitat...
The addition of a wet aerosole containing Ba 2+ enables the imaging F in biological and geological samples via LA-ICP-MS/MS.
This review describes applications of inductively coupled plasma mass spectrometry (ICP-MS) to the determination of long-lived radionuclides in environmental samples. Simultaneous determination of 232Th and 238U in biological samples is described in detail; in this procedure an internal standard, Tl or Bi, is adopted for correction of the matrix effect. Determination of 237Np in soil samples by...
Although some studies suggested a link between exposure to trace elements and development of multiple sclerosis (MS), clear information on their role in the aetiology of MS is still lacking. In this study the concentrations of Al, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Hg, Li, Mg, Mn, Mo, Ni, Pb, Sb, Si, Sn, Sr, Tl, V, W, Zn and Zr were determined in the blood of 60 patients with MS and 60 control...
This paper describes rapid methods for the determination of the production date (age dating) of plutonium (Pu) materials by inductively coupled plasma mass spectrometry (ICP-MS) for nuclear forensic and safeguards purposes. One of the presented methods is a rapid, direct measurement without chemical separation using 235U/239Pu and 236U/240Pu chronometers. The other method comprises a straightfo...
Reducing total sulfur in motor fuels has become a critical air pollution control goal worldwide. As countries mandate ever lower permissible levels of total sulfur in fuels, the environmental monitoring and fuel manufacturing industries have been forced to find more sensitive techniques for analysis. Gas chromatography coupled to inductively coupled plasma mass spectrometry (GC-ICP-MS) has the ...
This application note describes the quantification of cadmium, chromium, lead and mercury in plastic materials by external calibration using the Agilent 7500ce ICP-MS system equipped with an Octopole Reaction System (ORS). Isotope dilution analysis with ICP-MS was used as a confirmatory technique. Good agreement of the results obtained by the two calibration approaches was achieved. The sample ...
The determination of natural mass independent isotope variations by precise isotopic measurements of elements by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) requires a detailed understanding of the instrumental mass bias. Until recently, the instrumental mass bias in MC-ICP-MS analysis was considered to be entirely mass dependent, most often corrected by an exponent...
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