Jhanis J. Gonzalez

Principal Scientific Engineering Associate

(510) 495-2899

JJGonzalez@lbl.gov

eta.lbl.gov/people/Jhanis-J.-Gonzalez

Bio

Dr. Jhanis J. Gonzalez C. was born in Caracas, Venezuela. Obtained his PhD degree in Chemistry from the Universidad Central de Venezuela in 2002, after which he spent two years as a post-doc researcher at Lawrence Berkeley National Laboratory (USA). Since 2004 he is a Scientist at Lawrence Berkeley National Laboratory, Berkeley. CA. USA. and the Applications Lab Director, Applied Spectra,Inc. Fremont. CA. USA. His research focuses on understanding mechanisms of laser-material interactions (ablation) using nanosecond and femtosecond pulsed lasers and their impacts on LIBS and all platforms of ICP-MS systems. He also is involved in the development of analytical methods for applications in energy, environmental, geochemistry, biological and metallurgy industries. Dr. Gonzalez has over 50 manuscripts published in peer review journals, more than 40 presentations and invited lectures at national and international conferences.

Education

Chemistry. PhD. Universidad Central de Venezuela. 2002

Publications

2020

Calcium fluoride as a dominating matrix for quantitative analysis by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS): A feasibility study

Authors: Zhu, Yanbei; Jhanis J. Gonzalez; Xinyan Yang; George C.-Y. Chan; Xin He; Robert Kostecki; Xianglei Mao; Richard E. Russo, and Vassilia Zorba.

07/2020

2019

Elemental Analysis of Asphaltenes Using Simultaneous Laser-Induced Breakdown Spectroscopy (LIBS)–Laser Ablation Inductively Coupled Plasma Optical Emission Spectrometry (LA-ICP-OES)

Authors: Oropeza, Dayana D.; Jhanis J. Gonzalez; José R. Chirinos; Vassilia Zorba; Estrella Rogel; César Ovalles, and Francisco López-Linares.

01/2019

2018

Spatial and Temporal Distribution of Metal Atoms and their Diatomic Oxide Molecules in Femtosecond Laser-Induced Plasmas

Authors: Lee, Yonghoon; Xianglei Mao; George C.Y. Chan; Jhanis J. Gonzalez; Richard E. Russo, and Vassilia Zorba.

07/2018

2017

Analysis of Plant Leaves Using Laser Ablation Inductively Coupled Plasma Optical Emission Spectrometry: Use of Carbon to Compensate for Matrix Effects

Authors: Chirinos, José R.; Dayana D. Oropeza; Jhanis J. Gonzalez; Vassilia Zorba, and Richard E. Russo.

12/2016

Solid matrix transformation and tracer addition using molten ammonium bifluoride salt as a sample preparation method for laser ablation inductively coupled plasma mass spectrometry

Authors: Grate, Jay W.; Jhanis J. Gonzalez; Matthew J. O'Hara; Cynthia M. Kellogg; Samuel S. Morrison; David W. Koppenaal; George C.-Y. Chan; Xianglei Mao; Vassilia Zorba, and Richard E. Russo.

06/2017

Laser-Ablation Sampling for Accurate Analysis of Sulfur in Edible Salts

Authors: Lee, Yonghoon; José R. Chirinos; Jhanis J. Gonzalez; Dayana D. Oropeza; Vassilia Zorba; Xianglei Mao; Jonghyun Yoo, and Richard E. Russo.

03/2017

2014

Elucidation of C₂ and CN formation mechanisms in laser-induced plasmas through correlation analysis of carbon isotopic ratio

Authors: Dong, Meirong; George C.Y. Chan; Xianglei Mao; Jhanis J. Gonzalez; Jidong Lu, and Richard E. Russo.

10/2014

Liquid sampling-atmospheric pressure glow discharge as a secondary excitation source: Assessment of plasma characteristics

Authors: Manard, Benjamin T.; Jhanis J. Gonzalez; Arnab Sarkar; Meirong Dong; José R. Chirinos; Xianglei Mao; Richard E. Russo, and R. K. Marcus.

04/2014

Ultrafast laser ablation ICP-MS: role of spot size, laser fluence, and repetition rate in signal intensity and elemental fractionation

Authors: Diwakar, Prasoon K.; Jhanis J. Gonzalez; Sivanandan S. Harilal; Richard E. Russo, and Ahmed Hassanein.

02/2014

2013

Laser ablation in analytical chemistry

Authors: Russo, Richard E.; Xianglei Mao; Jhanis J. Gonzalez; Vassilia Zorba, and Jong-Hyun Yoo.

07/2013

Determination of Vanadium/Nickel Proportionality in the Asphaltene Fraction of Crude Oil Using Thin-Layer Chromatography with Femtosecond Laser Ablation–Inductively Coupled Plasma–Mass Spectrometry

Authors: Chirinos, José R.; Dayana D. Oropeza; Jhanis J. Gonzalez; María Ranaudo, and Richard E. Russo.

05/2013

LIBS analysis of artificial calcified tissues matrices

Authors: Kasem, Mohamed A.; Jhanis J. Gonzalez; Richard E. Russo, and Mohamed A. Harith.

04/2013

Plasma property effects on spectral line broadening in double-pulse laser-induced breakdown spectroscopy

Authors: Choi, Inhee; Xianglei Mao; Jhanis J. Gonzalez, and Richard E. Russo.

03/2013

Carbon Isotope Separation and Molecular Formation in Laser-Induced Plasmas by Laser Ablation Molecular Isotopic Spectrometry

Authors: Dong, Meirong; Xianglei Mao; Jhanis J. Gonzalez; Jidong Lu, and Richard E. Russo.

03/2013

Femtosecond vs. nanosecond laser pulse duration for laser ablation chemical analysis

Authors: Russo, Richard E.; Xianglei Mao; Jhanis J. Gonzalez, and Jong-Hyun Yoo.

01/2013

Influencia de la longitud de onda en la espectroscopia de plasma inducido por láser

Authors: Piscitelli, Vincent; Alberto J Fernández; Jhanis J. Gonzalez, and Richard E. Russo.

2012

Analysis and Classification of Heterogeneous Kidney Stones Using Laser-Induced Breakdown Spectroscopy (LIBS)

Authors: Oztoprak, Belgin G.; Jhanis J. Gonzalez; Jong-Hyun Yoo; Turgay Gulecen; Nazim Mutlu; Richard E. Russo; Ozcan Gundogdu, and Arif Demir.

11/2012

Liquid sampling-atmospheric pressure glow discharge optical emission spectroscopy detection of laser ablation produced particles: A feasibility study

Authors: Quarles, C. Derrick Jr; Jhanis J. Gonzalez; Inhee Choi; Javier Ruiz; Xianglei Mao; R. K. Marcus, and Richard E. Russo.

10/2012

Time-resolved LIBS of atomic and molecular carbon from coal in air, argon and helium

Authors: Dong, Meirong; Xianglei Mao; Jhanis J. Gonzalez; Jidong Lu, and Richard E. Russo.

10/2012

Rapid bulk analysis using femtosecond laser ablation inductively coupled plasma time-of-flight mass spectrometry

Authors: Gonzalez, Jhanis J.; Dayana D. Oropeza; Henry Longerich; Xianglei Mao, and Richard E. Russo.

09/2012

Direct Real-Time Determination of Compositional Profiles in Structured Materials Using Laser Ablation Instruments: LIBS and LA-ICP-MS

Authors: Bol'shakov, Alexander A.; Jong-Hyun Yoo; Jhanis J. Gonzalez; Chunyi Liu, and Richard E. Russo.

06/2012

Laser ablation plasmas for diagnostics of structured electronic and optical materials during or after laser processing

Authors: Russo, Richard E.; Alexander A. Bol'shakov; Jong-Hyun Yoo, and Jhanis J. Gonzalez.

02/2012

2011

Laser plasma spectrochemistry

Authors: Russo, Richard E.; Timothy W. Suen; Alexander A. Bol'shakov; Jong-Hyun Yoo; Osman Sorkhabi; Xianglei Mao; Jhanis J. Gonzalez; Dayana D. Oropeza, and Vassilia Zorba.

08/2011

2009

Double pulse laser induced breakdown spectroscopy; experimental study of lead emission intensity dependence on the wavelengths and sample matrix

Authors: Piscitelli, Vincent; Mauro A. Martinez; Alberto J Fernández; Jhanis J. Gonzalez; Xianglei Mao, and Richard E. Russo.

02/2009

Trace element fingerprinting of ancient Chinese gold with femtosecond laser ablation-inductivity coupled mass spectrometry

Authors: Brostoff, Lynn B.; Jhanis J. Gonzalez; Paul Jett, and Richard E. Russo.

02/2009

2008

Assessment of the precision and accuracy of thorium (²³²Th) and uranium (²³⁸U) measured by quadrupole based-inductively coupled plasma-mass spectrometry: comparison of liquid nebulization, nanosecond and femtosecond laser ablation

Authors: Gonzalez, Jhanis J.; Dayana D. Oropeza; Xianglei Mao, and Richard E. Russo.

02/2008

Laser Ablation Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for Forensic Glass Analysis: Comparison of 213nm-Nanosecond and 266nm-Femtosecond Laser Ablation

Authors: Naes, Benjamin E.; Jhanis J. Gonzalez; Richard E. Russo, and José R. Almirall.

Laser Ablation

Authors: Russo, Richard E.; Xianglei Mao; Jong-Hyun Yoo; Jhanis J. Gonzalez; P. Singh Jagdish, and Thakur Surya Narayan.

Femtosecond laser ablation: Experimental study of the repetition rate influence on qualitative and quantitative ICP-MS performance

Authors: Gonzalez, Jhanis J.; Alberto J Fernández; Dayana D. Oropeza; Xianglei Mao, and Richard E. Russo.

2007

Metal particles produced by laser ablation for ICP-MS measurements

Authors: Gonzalez, Jhanis J.; Chunyi Liu; Sy-Bor Wen; Xianglei Mao, and Richard E. Russo.

09/2007

Glass particles produced by laser ablation for ICP-MS measurements

Authors: Gonzalez, Jhanis J.; Chunyi Liu; Sy-Bor Wen; Xianglei Mao, and Richard E. Russo.

09/2007

2006

UV-femtosecond and nanosecond laser ablation-ICP-MS: internal and external repeatability

Authors: Gonzalez, Jhanis J.; Siv H. Dundas; Chunyi Liu; Xianglei Mao, and Richard E. Russo.

08/2006

2005

Laser ablation: LIBS and ICP-MS

Authors: Russo, Richard E.; Jhanis J. Gonzalez, and Chunyi Liu.

Study of particle size influence on laser ablation inductively coupled plasma mass spectrometry using an in-line cascade impactor

Authors: Liu, Chunyi; Xianglei Mao; Jhanis J. Gonzalez, and Richard E. Russo.

Double-pulse laser ablation inductively coupled plasma mass spectrometry

Authors: Gonzalez, Jhanis J.; Chunyi Liu; Jong-Hyun Yoo; Xianglei Mao, and Richard E. Russo.