Characterization of thermal inkjet technology TNT deposits by fiber optic-grazing angle probe FTIR spectroscopy

Primera-Pedrozo, Oliva M.; Pacheco‐Londoño, Leonardo C.; Ruiz, Orlando; Ramírez, Michael; Soto‐Feliciano, Yadira M.; Torre-Quintana, Luis F. De la; Hernández‐Rivera, Samuel P.

doi:10.1117/12.602451

Cited by 12 publications

(10 citation statements)

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“…The two methods tested for preparation of homogeneous samples and standards of solids/traces deposited onto surfaces were sample smearing [8] and TIJ sample delivery [14]. Both methods were compared in the study.…”

Section: Sample Preparation and Solvent Mixturesmentioning

confidence: 99%

“…Visualization of deposits, using optical microscopy images, showed that there was a close dependence between the number of passes and the crystallization of the explosives on the surface [14]. Even at a low (1.25 lg/cm 2 ) loading concentration, the surface was practically covered by crystals.…”

Section: Introductionmentioning

confidence: 99%

“…Sample smearing [7,8,12,13], aerosol spray deposition, thermal inkjet deposition [14], deposition by rotary evaporation [15], and direct transfer deposition using micropipettes [14] have been reported previously as methods for sample and standards preparation on metals, silica, glass and plastic surfaces. Also, trinitrotoluene (TNT) was deposited on cloth and planar surfaces with post removal by air jets.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of TNT, RDX and Ammonium Nitrate Standards on Gold-on-Silicon Surfaces by Thermal Inkjet Technology

et al. 2010

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This research examines the surface contamination properties, trace sample preparation methodologies, detection systems response and generation of explosive contamination standards for trace detection systems. Homogeneous and reproducible sample preparation is relevant for trace detection of chemical threats, such as warfare agents, highly energetic materials (HEM) and toxic industrial chemicals. The objective of this research was to develop a technology capable of producing samples and standards of HEM with controlled size and distribution on a substrate to generate specimens that would reproduce real contamination conditions. The research activities included (1) a study of the properties of particles generated by two deposition techniques: sample smearing deposition and inkjet deposition, on gold-coated silicon, glass and stainless steel substrates; (2) characterization of composition, distribution and adhesion characteristics of deposits; (3) evaluation of accuracy and reproducibility for depositing neat highly energetic materials such as TNT, RDX and ammonium nitrate; (4) a study of HEM-surface interactions using FTIR-RAIRS; and (5) establishment of protocols for validation of surface concentration using destructive methods such as HPLC.

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Section: Sample Preparation and Solvent Mixturesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation of TNT, RDX and Ammonium Nitrate Standards on Gold-on-Silicon Surfaces by Thermal Inkjet Technology

et al. 2010

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“…This methodology also has the advantage of being able to detect CWAs on surfaces as varied as metal, plastic, glass, wood and others. [12][13][14] In other experiments, the spectra of CWAs and their degradation products were measured using Raman spectroscopy, liquid and gas phase FTIR, FOC-GAP-FTIR, as well as Raman excitation in the near infrared (785nm), visible (532, 514 and 488nm)…”

Section: The Infrared and Raman Spectral Signatures Of Chemical Threamentioning

confidence: 99%

Vibrational spectroscopy of chemical warfare agents

Hernández‐Rivera¹

2007

SPIE Newsroom

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“…The PLS algorithm is commonly incorporated in spectroscopic software such as OPUS™, Pirouette™ and Matlab Toolboxes™, among others. The advantages of using chemometrics for the quantification of organic compounds on glass, aluminum and stainless steel and other surfaces have been discussed in the literature (Mehta, et al, 2003;Hamilton, et al, 2005;Perston, et al, 2007;Primera-Pedrozo, et al, 2004;Primera-Pedrozo, et al, 2005;Primera-Pedrozo, et.al. 2007;Soto-Feliciano, et al, 2006;Primera-Pedrozo, et al, 2008;2009).…”

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confidence: 99%