Adriano Parisi | Valencia College (original) (raw)

Papers by Adriano Parisi

Research paper thumbnail of Verfahren zum Bewerten eines Kohlenwasserstoff-Kraftstoffes

Research paper thumbnail of Spatially resolved measurements as a vehicle for studying atomization mechanisms in an ICP

Spectrochimica Acta Part B: Atomic Spectroscopy, 1989

... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Blooming... more ... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Bloomington, IN 47405, USA (Received 2 January 1989; in revised form ... 4, the significant noise level on the signals, and the high degree to which the Abel transform is sensitive to such ...

Research paper thumbnail of Modification of an inductively coupled plasma radio frequency supply for amplitude modulation with complex wave forms

Analytical Chemistry, 1985

Research paper thumbnail of Temporally and spatially resolved studies in an amplitude modulated inductively coupled plasma

Spectrochimica Acta Part B: Atomic Spectroscopy, 1987

Abstrac&-The rf power introduced into an inductively coupled plasma (ICP) has been amplitude modu... more Abstrac&-The rf power introduced into an inductively coupled plasma (ICP) has been amplitude modulated between 1 kW and 250 W. The utility of this perturbation for the study of plasma intrinsic properties such as the recombination continuum and argon emission, which were monitored with spatial and temporal resolution, is described. In addition, the use of this perturbation for the investigation of analyte emission spatial profiling is demonstrated. Observed relaxation times for several plasma species indicate ambipolar diffusion, thermal conduction, and radiative recombination to be rate-limiting steps in plasma relaxation. Finally, this experimental approach shows great potential as a method for the study of atomization mechanisms and molecular recombination reactions occurring in the plasma.

Research paper thumbnail of Apparatus and system for determining a parameter of a substance

Research paper thumbnail of Fundamental Studies in a Modulated Inductively Coupled Plasma

Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic s... more Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic spectroscopy in the mid 1960's, it has become the device of choice for multielement analysis. Yet, in spite of the widespread use of the ICP to perform elemental analysis, lack of fundamental knowledge about its nature hinders a more efficient use of this source. In

Research paper thumbnail of A method for evaluating a hydrocarbon fuel and using a neural network

Research paper thumbnail of HYQUIRA: a venezuelan technology for measuring fuel quality

Research paper thumbnail of Apparatus and system for determining a parameter of a substance

Research paper thumbnail of Apparatus for determining a parameter of a substance, especially a hydrocarbon

Research paper thumbnail of Method for determining parameter of hydrocarbon

Research paper thumbnail of HYQUIRA: a venezuelan technology for measuring fuel quality

Research paper thumbnail of Fundamental Studies in a Modulated Inductively Coupled Plasma

Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic s... more Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic spectroscopy in the mid 1960's, it has become the device of choice for multielement analysis. Yet, in spite of the widespread use of the ICP to perform elemental analysis, lack of fundamental knowledge about its nature hinders a more efficient use of this source. In

Research paper thumbnail of Analytical method for the determination of intra- and extraframework gallium species in zeolite catalyst

Zeolites, 1992

Abstract The aim of this work is to report a very simple analytical method for the quantitative d... more Abstract The aim of this work is to report a very simple analytical method for the quantitative determination of intra-and extralattice gallium species in zeolitic material using flame atomic absorption spectroscopy. The method was developed by adjusting the sample treatment ...

Research paper thumbnail of Spatially resolved measurements as a vehicle for studying atomization mechanisms in an ICP

Spectrochimica Acta Part B: Atomic Spectroscopy, 1989

... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Blooming... more ... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Bloomington, IN 47405, USA (Received 2 January 1989; in revised form ... 4, the significant noise level on the signals, and the high degree to which the Abel transform is sensitive to such ...

Research paper thumbnail of Modification of an inductively coupled plasma radio frequency supply for amplitude modulation with complex wave forms

Analytical Chemistry, 1985

Amplitude modulation of an inductively coupled plasma (ICP) has potential both as a means of impr... more Amplitude modulation of an inductively coupled plasma (ICP) has potential both as a means of improving detection limits in atomic spectrometry (1) and as an investigative probe for fundamental studies (24). With such a system, detection

Research paper thumbnail of Temporally and spatially resolved studies in an amplitude modulated inductively coupled plasma

Spectrochimica Acta Part B: Atomic Spectroscopy, 1987

Abstrac&--The rf power introduced into an inductively coupled plasma (ICP) has been amplitude mod... more Abstrac&--The rf power introduced into an inductively coupled plasma (ICP) has been amplitude modulated between 1 kW and 250 W. The utility of this perturbation for the study of plasma intrinsic properties such as the recombination continuum and argon emission, which were monitored with spatial and temporal resolution, is described. In addition, the use of this perturbation for the investigation of analyte emission spatial profiling is demonstrated. Observed relaxation times for several plasma species indicate ambipolar diffusion, thermal conduction, and radiative recombination to be rate-limiting steps in plasma relaxation. Finally, this experimental approach shows great potential as a method for the study of atomization mechanisms and molecular recombination reactions occurring in the plasma. *Present address: Departamento de Analyisis y Evaluaciion, Intevep, S. A., Apartado Postal 76343, Caracas 107O-A, Venezuela. tPresent address:

Research paper thumbnail of Verfahren zum Bewerten eines Kohlenwasserstoff-Kraftstoffes

Research paper thumbnail of Spatially resolved measurements as a vehicle for studying atomization mechanisms in an ICP

Spectrochimica Acta Part B: Atomic Spectroscopy, 1989

... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Blooming... more ... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Bloomington, IN 47405, USA (Received 2 January 1989; in revised form ... 4, the significant noise level on the signals, and the high degree to which the Abel transform is sensitive to such ...

Research paper thumbnail of Modification of an inductively coupled plasma radio frequency supply for amplitude modulation with complex wave forms

Analytical Chemistry, 1985

Research paper thumbnail of Temporally and spatially resolved studies in an amplitude modulated inductively coupled plasma

Spectrochimica Acta Part B: Atomic Spectroscopy, 1987

Abstrac&-The rf power introduced into an inductively coupled plasma (ICP) has been amplitude modu... more Abstrac&-The rf power introduced into an inductively coupled plasma (ICP) has been amplitude modulated between 1 kW and 250 W. The utility of this perturbation for the study of plasma intrinsic properties such as the recombination continuum and argon emission, which were monitored with spatial and temporal resolution, is described. In addition, the use of this perturbation for the investigation of analyte emission spatial profiling is demonstrated. Observed relaxation times for several plasma species indicate ambipolar diffusion, thermal conduction, and radiative recombination to be rate-limiting steps in plasma relaxation. Finally, this experimental approach shows great potential as a method for the study of atomization mechanisms and molecular recombination reactions occurring in the plasma.

Research paper thumbnail of Apparatus and system for determining a parameter of a substance

Research paper thumbnail of Fundamental Studies in a Modulated Inductively Coupled Plasma

Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic s... more Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic spectroscopy in the mid 1960's, it has become the device of choice for multielement analysis. Yet, in spite of the widespread use of the ICP to perform elemental analysis, lack of fundamental knowledge about its nature hinders a more efficient use of this source. In

Research paper thumbnail of A method for evaluating a hydrocarbon fuel and using a neural network

Research paper thumbnail of HYQUIRA: a venezuelan technology for measuring fuel quality

Research paper thumbnail of Apparatus and system for determining a parameter of a substance

Research paper thumbnail of Apparatus for determining a parameter of a substance, especially a hydrocarbon

Research paper thumbnail of Method for determining parameter of hydrocarbon

Research paper thumbnail of HYQUIRA: a venezuelan technology for measuring fuel quality

Research paper thumbnail of Fundamental Studies in a Modulated Inductively Coupled Plasma

Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic s... more Since the introduction of the inductively coupled plasma (ICP) as an emission source for atomic spectroscopy in the mid 1960's, it has become the device of choice for multielement analysis. Yet, in spite of the widespread use of the ICP to perform elemental analysis, lack of fundamental knowledge about its nature hinders a more efficient use of this source. In

Research paper thumbnail of Analytical method for the determination of intra- and extraframework gallium species in zeolite catalyst

Zeolites, 1992

Abstract The aim of this work is to report a very simple analytical method for the quantitative d... more Abstract The aim of this work is to report a very simple analytical method for the quantitative determination of intra-and extralattice gallium species in zeolitic material using flame atomic absorption spectroscopy. The method was developed by adjusting the sample treatment ...

Research paper thumbnail of Spatially resolved measurements as a vehicle for studying atomization mechanisms in an ICP

Spectrochimica Acta Part B: Atomic Spectroscopy, 1989

... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Blooming... more ... ADRIANO F. PARISIJ: and GARY M. HIEFTJE Department of Chemistry, Indiana University, Bloomington, IN 47405, USA (Received 2 January 1989; in revised form ... 4, the significant noise level on the signals, and the high degree to which the Abel transform is sensitive to such ...

Research paper thumbnail of Modification of an inductively coupled plasma radio frequency supply for amplitude modulation with complex wave forms

Analytical Chemistry, 1985

Amplitude modulation of an inductively coupled plasma (ICP) has potential both as a means of impr... more Amplitude modulation of an inductively coupled plasma (ICP) has potential both as a means of improving detection limits in atomic spectrometry (1) and as an investigative probe for fundamental studies (24). With such a system, detection

Research paper thumbnail of Temporally and spatially resolved studies in an amplitude modulated inductively coupled plasma

Spectrochimica Acta Part B: Atomic Spectroscopy, 1987

Abstrac&--The rf power introduced into an inductively coupled plasma (ICP) has been amplitude mod... more Abstrac&--The rf power introduced into an inductively coupled plasma (ICP) has been amplitude modulated between 1 kW and 250 W. The utility of this perturbation for the study of plasma intrinsic properties such as the recombination continuum and argon emission, which were monitored with spatial and temporal resolution, is described. In addition, the use of this perturbation for the investigation of analyte emission spatial profiling is demonstrated. Observed relaxation times for several plasma species indicate ambipolar diffusion, thermal conduction, and radiative recombination to be rate-limiting steps in plasma relaxation. Finally, this experimental approach shows great potential as a method for the study of atomization mechanisms and molecular recombination reactions occurring in the plasma. *Present address: Departamento de Analyisis y Evaluaciion, Intevep, S. A., Apartado Postal 76343, Caracas 107O-A, Venezuela. tPresent address: