In this work, we studied the effect of power variation ​​on inductively coupled plasma parameters using numerical simulation. Different values ​​were used for input (750 W-1500 W), gas temperature 300K, pressure (0.02torr), 5 tourns copper coil and was produced at radio frequency (RF) 13.56 MHZ on above quartz chamber. For previous purpose, a computer simulation in two dimensions axisymmetric, ...

Inductively coupled plasma mass spectrometry (ICPMS) measurements are used to study with unprecedented accuracy and precision the formation and stoichiometry of the nanoparticle core and shell of CdSe quantum dots (QDs).

The development of accurate, sensitive and fast analytical methods for the determination of low levels of sulfur (S) in organic matrices is important in several applications. In this note we concentrate on the determination of S in biodiesel, but the methodology is also applicable to the determination of S (plus other elements) in other matrices such as biological materials and S-containing drugs.

The advent of magnetic sector inductively coupled plasma-mass spectrometry (ICP-MS) allows rapid, accurate, and precise measurement of lead isotopes in environmental and biological samples at a lower cost than traditional methods. This may increase the feasibility of including lead isotope measurements as a routine tool to identify household sources of lead exposure to children. Here, we presen...

One of the most important practical issues in low-temperature fuel-cell catalyst degradation is platinum dissolution. According to the literature, it initiates at 0.6-0.9 VRHE, whereas previous time- and potential-resolved inductively coupled plasma mass spectrometry (ICP-MS) experiments, however, revealed dissolution onset at only 1.05 VRHE. In this manuscript, the apparent discrepancy is addr...

The introduction and development of Single Particle ICP-MS (SP-ICP-MS) has opened a new area of research which allows the rapid detection and analysis of metal-based particles in a variety of matrices and applications.1-6 The key feature of SP-ICP-MS is that it allows discrete pulses of positively charged ions to be detected and measured in a time-resolved manner using microsecond (μs) data acq...

Electrothermal vaporization with two filaments was studied for low-pressure helium-ICP-MS. A 10-microl volume of sample was dried and vaporized, and then introduced to the ICP. With this technique, four elements were simultaneously determined with the acceptable precisions (RSD ca. 10%). The detection limit based on 3sigma of background signals approached the fractional ppb range. The proposed ...

Novel single cell techniques are attracting growing interest for clinical applications, because they can elucidate the cellular diversity and heterogeneity instead of the average masked by bulk measurements. Herein, time-resolved ICP-MS for the determination of essential mineral elements in single cells has been developed and is used to analyze the contents and distribution patterns of Fe, Cu, ...

The great potential of capillary HPLC (capHPLC) coupled to element mass spectrometry (ICPMS) to study peptide phosphorylation dynamics was evaluated, and the high precision associated with the absolute quantification of the phosphopeptides provided the most detailed phosphorylation time profile ever reported.

The presence and transformation of volatile halogenated organics in wastewaters after treatment with monochloramine have been examined using an Agilent 7890A GC coupled to an Agilent 7700x ICP-MS. The element-specific bromine and iodine content in this diverse set of organic species have been determined using compound-independent calibrations (CICs) that are based on the elemental responses obt...