Evaluation of Organic and Inorganic Gunshot Residues in Various Populations Using LC-MS/MS

2021 ◽  
Author(s):  
William Feeney ◽  
Korina Menking-Hoggatt ◽  
Luis Eduardo Arroyo ◽  
James Curran ◽  
Suzanne Bell ◽  
...  
Keyword(s):  
Gunshot Residues

Analysis of primer gunshot residue particles by laser induced breakdown spectroscopy and laser ablation inductively coupled plasma mass spectrometry

The Analyst ◽  
2021 ◽  
Author(s):  
Courtney Vander Pyl ◽  
Claudia Martinez-Lopez ◽  
Korina Menking Hoggatt ◽  
Tatiana Trejos
Keyword(s):  
Rapid Detection ◽  
Inductively Coupled Plasma ◽  
Gunshot Residue ◽  
Laser Induced Breakdown Spectroscopy ◽  
Large Dataset ◽  
Gunshot Residues ◽  
Inductively Coupled ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Plasma Mass Spectrometry

LIBS and LAICPMS microchemical mapping for rapid detection of gunshot residues is reported for a large dataset of pGSR authentic items and microparticle standards, with accurate differentiation between shooter and non-shooter profiles (>88%).

Characterization of Brazilian ammunitions and their respective gunshot residues with ion beam techniques

2018 ◽  
Vol 7 ◽  
pp. 94-102 ◽  
Author(s):  
A. Duarte ◽  
L.M. Silva ◽  
C.T. de Souza ◽  
E.M. Stori ◽  
L.A.B. Niekraszewicz ◽  
...  
Keyword(s):  
Ion Beam ◽  
Gunshot Residues

scholarly journals Interaction of gunshot residues (GSR) with natural and synthetic textiles having different structural features

Talanta Open ◽  
2020 ◽  
Vol 2 ◽  
pp. 100017
Author(s):  
Silvia Fabbris ◽  
Antonella Profumo ◽  
Gianluca Alberini ◽  
Sara Bonomi ◽  
Chiara Milanese ◽  
...  
Keyword(s):  
Structural Features ◽  
Gunshot Residues ◽  
Natural And Synthetic

HPLC detection of organic gunshot residues collected with silicone wristbands

2020 ◽  
Vol 12 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Yelyzaveta Zuy ◽  
Samantha O. Sweck ◽  
Christopher R. Dockery ◽  
Gretchen E. Potts
Keyword(s):  
Passive Sampling ◽  
Hplc Method ◽  
Gunshot Residues

An HPLC method was developed for detection of organic gunshot residues extracted from silicone wristbands used as passive sampling devices.

Nano characterization of gunshot residues from Brazilian ammunition

2014 ◽  
Vol 240 ◽  
pp. 69-79 ◽  
Author(s):  
Lis G.A. Melo ◽  
Andrea Martiny ◽  
André L. Pinto
Keyword(s):  
Gunshot Residues

scholarly journals Estimating Diphenylamine in Gunshot Residues from a New Tool for Identifying both Inorganic and Organic Residues in the Same Sample

Separations ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 16 ◽  
Author(s):  
Ana Argente-García ◽  
Lusine Hakobyan ◽  
Carmen Guillem ◽  
Pilar Campíns-Falcó
Keyword(s):  
Limit Of Detection ◽  
Solid Phase ◽  
High Sensitivity ◽  
Capillary Liquid Chromatography ◽  
Organic Residues ◽  
Cotton Swab ◽  
Gunshot Residues ◽  
Relative Standard ◽  
On Line ◽  
Inorganic And Organic

A method involving the collection and determination of organic and inorganic gunshot residues on hands using on-line in-tube solid-phase microextraction (IT-SPME) coupled to miniaturized capillary liquid chromatography with diode array detection (CapLC-DAD) and scanning electron microscopy coupled to energy dispersion X-ray (SEM-EDX), respectively, for quantifying both residues was developed. The best extraction efficiency for diphenylamine (DPA) as the main target among organic residues was achieved by using a dry cotton swab followed by vortex-assisted extraction with water, which permits preservation of inorganic residues. Factors such as the nature and length of the IT-SPME extractive phase and volume of the sample processed were investigated and optimized to achieve high sensitivity: 90 cm of TRB-35 (35% diphenyl, 65% polydimethylsiloxane) capillary column and 1.8 mL of the processed sample were selected for the IT-SPME. Satisfactory limit of detection of the method for analysis of DPA deposited on shooters’ hands (0.3 ng) and precision (intra-day relative standard deviation, 9%) were obtained. The utility of the described approach was tested by analyzing several samples of shooters’ hands. Diphenylamine was found in 81% of the samples analyzed. Inorganic gunshot residues analyzed by SEM-EDX were also studied in cotton swab and lift tape kit samplers. Optical microscopy was used to see the inorganic gunshot residues in the cotton swab samplers. The lift tape kits provided lesser sensitivity for DPA than dry cotton swabs—around fourteen times. The possibility of environmental and occupational sources could be eliminated when DPA was found together with inorganic residues. Then, the presence of inorganic and organic residues in a given sample could be used as evidence in judicial proceedings in the forensic field.

Can cadaverous pollution from environmental lead misguide to false positive results in the histochemical determination of gunshot residues? Study on cadaveric skin samples

2017 ◽  
Vol 277 ◽  
pp. 16-20 ◽  
Author(s):  
Michele Boracchi ◽  
Salvatore Andreola ◽  
Federica Collini ◽  
Guendalina Gentile ◽  
Francesca Maciocco ◽  
...  
Keyword(s):  
False Positive ◽  
Gunshot Residues ◽  
Environmental Lead ◽  
Positive Results ◽  
Skin Samples
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