Matrix effects using an ICP-MS with a single positive ion lens and grounded stop: analyte mass dependent?

2017 ◽  
Vol 32 (5) ◽  
pp. 951-966 ◽  
Author(s):  
John W. Olesik ◽  
Shi Jiao
Keyword(s):  
Gas Flow ◽  
Matrix Effects ◽  
Mass Matrix ◽  
Gas Flow Rate ◽  
Icp Ms ◽  
Single Positive ◽  
Mass Dependent ◽  
Positive Ion ◽  
Comprehensive Characterization

Comprehensive characterization of ICP-MS matrix effects as a function of analyte mass, matrix mass, lens voltage and nebulizer gas flow rate was carried out.

Characterization of matrix effects using an inductively coupled plasma-sector field mass spectrometer

2020 ◽  
Vol 35 (9) ◽  
pp. 2033-2056 ◽  
Author(s):  
Shi Jiao ◽  
John W. Olesik
Keyword(s):  
Flow Rate ◽  
Inductively Coupled Plasma ◽  
Gas Flow ◽  
Matrix Effects ◽  
Mass Matrix ◽  
Gas Flow Rate ◽  
Field Mass ◽  
Inductively Coupled ◽  
Comprehensive Characterization

Comprehensive characterization of ICP-SFMS matrix effects as function of analyte mass, matrix mass, focus lens voltage and nebulizer gas flow rate.

Experimental Characterization of Aerosol Production, Transport, Vaporization, and Atomization Systems. Part II: Factors Controlling Aerosol Size Distributions Produced

1985 ◽  
Vol 39 (6) ◽  
pp. 920-925 ◽  
Author(s):  
R. K. Skogerboe ◽  
S. J. Freeland
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Cross Flow ◽  
Size Distributions ◽  
Experimental Characterization ◽  
Gas Flow Rate ◽  
Mean Size ◽  
The Mean ◽  
Model Equations

The effects of nebulization conditions on the size characteristics of the aqueous aerosol produced have been investigated for a cross-flow nebulizer. It is shown that the nebulizer gas flow rate does not affect the upper limit mean sizes of the aqueous droplets transported from the nebulization chamber but that the mean size of the analyte-containing aerosol itself is affected. Model equations are presented descriptive of the effects of gas flow rate and analyte concentrations on analyte aerosol size characteristics.

Experimental Characterization of Aerosol Production, Transport, Vaporization, and Atomization Systems. Part I: Factors Controlling Aspiration Rates

1985 ◽  
Vol 39 (6) ◽  
pp. 916-920 ◽  
Author(s):  
R. K. Skogerboe ◽  
S. J. Freeland
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Present Knowledge ◽  
Experimental Characterization ◽  
Gas Flow Rate ◽  
Factors Affecting ◽  
Simple Linear Equation ◽  
The Relationship

This paper describes the results of the first stage of an investigation designed to extend present knowledge of the factors affecting aerosol production, transport, vaporization, and atomization in analytical spectroscopy systems. It focuses on factors controlling aspiration of aqueous solutions. The results demonstrate that the effect of gas flow on the pressure drop induced at the tip of the solution draw tube can be described by a simple linear equation; that the relationship between gas flow rate and solution nebulization rate can also be modelled by a simple equation; and that these relationships are not adequately represented by the Hagen-Poiseulle equation, as is often claimed.

Determination of mass-dependent molybdenum isotopic variations by MC-ICP-MS: An evaluation of matrix effects

2006 ◽  
Vol 225 (1-2) ◽  
pp. 121-136 ◽  
Author(s):  
Aaron J. Pietruszka ◽  
Richard J. Walker ◽  
Philip A. Candela
Keyword(s):  
Matrix Effects ◽  
Icp Ms ◽  
Mass Dependent ◽  
Isotopic Variations

Characterization of the Expanded Plasma Jet Generated at Reduced Chamber Pressure

2014 ◽  
Vol 644-650 ◽  
pp. 4892-4895
Author(s):  
De Ming Yang ◽  
Bo Han Tian
Keyword(s):  
Gas Flow ◽  
Hydrogen Plasma ◽  
Plasma Jet ◽  
Columnar Structure ◽  
Chamber Pressure ◽  
Gas Flow Rate ◽  
Arc Power ◽  
Enthalpy Probe ◽  
Low Pressure Plasma Spraying

Very low pressure plasma spraying has been attracted attention due to special properties of the expanded plasma jet which may probably deposit specific and unique structure coatings, such as columnar structure coatings. The forming of the coatings is affected by plasma generating and working conditions. These operating parameters such as arc power, plasma gas flow rate, and chamber pressure have influences on pressure, enthalpy and temperature of plasma jet. In this work, an enthalpy probe is applied to measure the enthalpy of argon-hydrogen plasma jet generated at chamber pressure of 3000 Pa and 50Pa. The results showed that the temperature of plasma jet reached to 11000 K at 25 mm from nozzle exit, and then dropped slowly to 7000 K at 400 mm.

A Characterization of the Performance of Gas Sensor Based on Heater in Different Gas Flow Rate Environments

2020 ◽  
Vol 16 (10) ◽  
pp. 6281-6290
Author(s):  
Linxi Dong ◽  
Zhongren Xu ◽  
Weipeng Xuan ◽  
Haixia Yan ◽  
Chaoran Liu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate

scholarly journals Characterization of a Dual Chambered Two Phase Separator

2011 ◽  
Author(s):  
Casey Klein ◽  
Cable Kurwitz ◽  
Frederick Best
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Space Shuttle ◽  
Scaling Analysis ◽  
Gas Flow Rate ◽  
Two Phase ◽  
Space Applications ◽  
Higher Power ◽  
Phase Separator

Fuel cells have been used as a power source in the space shuttle for decades and are expected to be used in future higher power, larger systems. A new, passive gas/liquid phase separator for use in such large fuel cell space applications has been invented. It is a vortex separator designed to accommodate gas driven two phase flows. The work presented here is a first of a kind study of this newly invented separator examining the minimum inlet gas flow rate necessary for a stable vortex inside the separator as a function of separator size. A dimensional scaling analysis was done to predict this minimum inlet gas flow rate. Experiments were performed on the ground and in conjunction with the NASA microgravity simulating aircraft to validate modeling. The results of the experiments and scaling analysis are compared.

Characterization of 12-Phase AC Arc Discharge and Glass In-Flight Melting Behavior

2012 ◽  
Vol 485 ◽  
pp. 185-188
Author(s):  
Yao Chun Yao ◽  
Takayuki Watanabe ◽  
Kazuyuki Yatsuda
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Arc Discharge ◽  
Melting Behavior ◽  
Raw Material ◽  
Gas Flow Rate ◽  
Discharge Behavior ◽  
Ac Arc ◽  
Ac Arc Discharge

Thermal plasma of 12-phase AC arc was successfully developed and applied in the field of glass in-flight melting, and the arc discharge behavior was characterized by image analysis. The effects of sheath gas flow rate on arc discharge and melting behavior of granulated glass raw material were investigated. Results show that different sheath gas flow rates lead to various arc discharge and high-temperature region. The fluctuation of luminance area ratio and coefficient of variation reflects the change of arc discharge behavior. As the sheath gas flow rate increases, the ratio of luminance area decreases and the center temperature of arc increases. The vitrification degree of glass raw material is mostly dependent on the center temperature of arc, higher center temperature and more vitrification degree.

scholarly journals Alternative Approaches Applied to Inductively Coupled Plasma Techniques: Multi‑Flow and Two-Flow Calibration

2021 ◽  
Author(s):  
Raquel Machado ◽  
Ana Beatriz Silva ◽  
Daniel Andrade ◽  
Fernanda Pinheiro ◽  
Charles Williams ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Gas Flow ◽  
Linear Models ◽  
Matrix Effects ◽  
Analytical Signal ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Relative Standard

Multi-flow calibration (MFC) is based on monitoring the analytical signal from a single calibration standard solution at several different nebulization gas flow rates (Q), which normalizes plasma conditions and minimizes matrix effects. In the present study, MFC was evaluated, for the first time, applied to inductively coupled plasma optical emission spectrometry (ICP OES) and inductively coupled plasma mass spectrometry (ICP-MS) to analyze different and complexmatrix samples. Al, As, Cd, Cr, Cu, Mn, Pb, and Zn were determined by ICP OES, while As, Cd, Co, Cu, Hg, Mo, Mn, Ni, Se, Sb, Pb, and V were determined by ICP-MS. MFC results were compared with those obtained using external standard calibration (EC) for both techniques and in all cases, MFC showed equal or superior accuracy (recoveries between 80-120%) compared to EC, and lower relative standard deviation (RSDs ≤ 10%). Several tests were also performed using only two nebulization gas flows to build linear models for calibration (called two-flow calibration, TFC) and the accurate results (recoveries ranged from 80 to 110% for ICP OES and from 81 to 102% for ICP-MS) suggests that this strategy can be also applied, resulting in a method with high sample throughput.

Sign in / Sign up

Export Citation Format

Share Document