Cluster Formation by Laser Ablation of Zeolites

1996 ◽  
Vol 457 ◽  
Author(s):  
Hiroshi T. Komiyama ◽  
Azuchi Harano ◽  
Tatsuya Okubo ◽  
Masayoshi Sadakata
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Quartz Glass ◽  
Nd:Yag Laser ◽  
Ultrafine Particles ◽  
Mass Spectra ◽  
Cluster Formation ◽  
Flight Mass Spectrometry ◽  
Positive Ions ◽  
Tof Ms

ABSTRACTSeveral kinds of zeolites, crystal-SiO2 (α-quartz), arnorphous-SiO2 (quartz glass and ultrafine particles) and α-Al2O3, were ablated by an Nd:YAG laser. Generated positive ions from the targets were measured by TOF-MS (time-of-flight mass spectrometry). In the TOF mass spectra of ablated zeolites, TOx (x=0–2, T = tetrahedral atom, e.g., Si, Al), T2Ox (x=1) and T3Ox (x=4,5) were observed up to m/z=170 (m = mass, z = plus charge of clusters). In the spectra due to the oc-quartz, quartz glass and an α-Al2O3 plate, smaller species, T+, TO+ and TO2+, were mainly detected. These results demonstrate that the clusters from zeolites reflect the characters of the mother structure.

Cluster formation in UV laser ablation plumes of ZnSe and ZnO studied by time-of-flight mass spectrometry

2004 ◽  
Vol 78 (5) ◽  
pp. 641-644 ◽  
Author(s):  
L.M. Kukreja ◽  
A. Rohlfing ◽  
P. Misra ◽  
F. Hillenkamp ◽  
K. Dreisewerd
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Cluster Formation ◽  
Time Of Flight ◽  
Uv Laser ◽  
Flight Mass Spectrometry

scholarly journals A novel and rapid approach to yeast differentiation using matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry

2003 ◽  
Vol 17 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Richard E. Sherburn ◽  
Richard O. Jenkins
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectra ◽  
Time Of Flight ◽  
Laser Desorption ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Flight Mass Spectrometry ◽  
Tof Ms ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

Matrix-assisted laser desorption/ionisation time of flight mass spectrometry (MALDI-TOF-MS) was investigated as a method for the rapid identification of yeast cells. Following pretreatment of yeast samples with a cell wall digesting enzyme (lyticase), distinct and reproducible mass spectra over them/zrange 2,000 to 16,000 were obtained by MALDI-TOF-MS. Using an optimised procedure, characteristic mass spectra that distinguished between Candida spp. and between strains of Saccharomyces cerevisiae were produced. The approach offers the potential for rapid differentiation of yeasts in clinical diagnosis and in the fermentation industries.

Machine learning: our future spotlight into single-particle ICP-ToF-MS analysis

2021 ◽  
Author(s):  
Timothy R. Holbrook ◽  
Doriane Gallot-Duval ◽  
Thorsten Reemtsma ◽  
Stephan Wagner
Keyword(s):  
Machine Learning ◽  
Mass Spectrometry ◽  
Laser Ablation ◽  
Single Particle ◽  
Inductively Coupled Plasma ◽  
Time Of Flight ◽  
Road Runoff ◽  
Inductively Coupled ◽  
Flight Mass Spectrometry ◽  
Tof Ms

Using the multi-element capabilities of single-particle inductively coupled plasma time-of-flight mass spectrometry (spICP-ToF-MS) in combination with a laser ablation introduction system, complex environmentally relevant road runoff samples from three different...

On the detection of heavy elements in the Euphorbia indica plant using laser-induced breakdown spectroscopy and laser ablation time of flight mass spectrometry

2019 ◽  
Vol 34 (5) ◽  
pp. 954-962 ◽  
Author(s):  
Abdul Jabbar ◽  
Mahmood Akhtar ◽  
Shaukat Mehmood ◽  
Nasar Ahmed ◽  
Zeshan Adeel Umar ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metals ◽  
Laser Ablation ◽  
Time Of Flight ◽  
Laser Induced Breakdown Spectroscopy ◽  
Ablation Time ◽  
Breakdown Spectroscopy ◽  
Flight Mass Spectrometry ◽  
Laser Induced Breakdown ◽  
Tof Ms

In this paper, we have addressed the phytoremediation, the ability to absorb heavy metals, of the Euphorbia indica plant by detecting heavy metals in its roots, stem and leaves using laser-induced breakdown spectroscopy (LIBS) and laser ablation time-of-flight mass spectrometry (LA-TOF-MS).

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