Ambient mass spectrometry: advances and applications in forensics

Green, F. M.; Salter, Tara L.; Stokes, Peter E.; Gilmore, Ian S.; O’Connor, Gavin

doi:10.1002/sia.3131

Cited by 90 publications

(65 citation statements)

References 60 publications

(87 reference statements)

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“…In addition, the size of the probed area under the liquid bridge can be precisely controlled for chemical imaging applications [58]. Similar to ESI [59] [30][31][32][33]50,60]. Recently, DESI and nano-DESI have been used for understanding physical chemistry of atmospheric aerosols and their molecular-level reaction chemistry [34,[61][62][63][64][65][66][67][68][69][70].…”

Section: Ambient Surface Ionisation Techniquesmentioning

confidence: 99%

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New mass spectrometry techniques for studying physical chemistry of atmospheric heterogeneous processes

Laskin

Nizkorodov

2013

International Reviews in Physical Chemistry

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Ambient particles and droplets have a significant effect on climate, visibility and human health. Once formed, they undergo continuous transformations through condensation and evaporation of water, uptake of low-volatility organic molecules and photochemical reactions involving various gaseous and condensed-phase species in the atmosphere. These transformations determine the physical and chemical properties of airborne particles, such as their ability to absorb and scatter solar radiation and nucleate cloud droplets. The complexity, heterogeneity and size of ambient particles make it challenging to understand the kinetics and mechanisms of their formation and chemical transformations. Mass spectrometry (MS) is a powerful analytical technique that enables detailed chemical characterisation of both small and large molecules in complex matrices. This capability makes MS a promising tool for studying chemical transformations of particles and droplets in the atmosphere. This review is focused on new and emerging experimental MS-based approaches for understanding the kinetics and mechanisms of such transformations. Some of the techniques discussed herein are best suited for ambient samples, while the others work best in laboratory applications. However, in combination, they provide a comprehensive arsenal of methods for characterisation of particles and droplets. In addition, we emphasise the role of fundamental physical chemistry studies in the development of new methods for chemical analysis of ambient particles and droplets.

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Section: Ambient Surface Ionisation Techniquesmentioning

confidence: 99%

“…Specifically, Fletcher et al developed a new dynamic TOF-SIMS instrument that uses a continuous primary ion beam (C 60 + , 40 keV) [111]. In this instrument, secondary ions undergo collisional cooling in a radio frequency (RF)-only quadrupole.…”

Section: Secondary Ion Mass Spectrometrymentioning

confidence: 99%

New mass spectrometry techniques for studying physical chemistry of atmospheric heterogeneous processes

Laskin

Nizkorodov

2013

International Reviews in Physical Chemistry

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“…DART-MS belongs to the growing group of ambient mass spectrometry [8][9][10]. Characteristic for ambient MS is the direct exposure of the sample to an ionizing gas at the open atmosphere.…”

mentioning

confidence: 99%

“…The features of DART-MS and ion formation processes in positive-ion DART are described in References [6,7,[11][12][13][14][15]. DART-MS has numerous applications in chemical analysis [16], forensics [10], drug testing [17], food quality and safety analysis [11,18], and many other fields [8,10,11,16,17,19,20].…”

mentioning

confidence: 99%

Analysis of Silicones Released from Household Items and Baby Articles by Direct Analysis in Real Time-Mass Spectrometry

Gross

2014

J. Am. Soc. Mass Spectrom.

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Abstract. Direct analysis in real time-mass spectrometry (DART-MS) enables screening of articles of daily use made of polydimethylsiloxanes (PDMS), commonly known as silicone rubber, to assess their tendency to release low molecular weight silicone oligomers. DART-MS analyses were performed on a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer. Flexible silicone baking molds, a watch band, and a dough scraper, as baby articles different brands of pacifiers, nipples, and a teething ring have been examined. While somewhat arbitrarily chosen, the set can be regarded as representative of household items, baby articles, and other objects made of silicone rubber. For comparison, two brands of silicone septa and as blanks a glass slide and a latex pacifier were included. Differences between the objects were mainly observed in terms of molecular weight distribution and occasional release of other compounds in addition to PDMS. Other than that, all objects made of silicone rubber released significant amounts of PDMS during DART analysis. To provide a coarse quantification, a calibration based on silicone oil was established, which delivered PDMS losses from 20 μg to 9100 μg during the 16-s period per measurement. Also, the extraction of baking molds in rapeseed oil demonstrated a PDMS release at the level of 1 μg mg -1 . These findings indicate a potential health hazard from frequent or long-term use of such items. This work does not intend to blame certain brands of such articles. Nonetheless, a higher level of awareness of this source of daily silicone intake is suggested.

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“…Direct analysis in real time (DART)-MS has been rapidly embraced in forensic science research (Jones, Cody and McClelland 2006;Steiner and Larson 2009;Green et al 2010;Musah et al 2012;Swider 2013) due to its speed and simplicity. The material of interest -a suspected drug or, in this case, a dyed textile fibre -is held between the ion source and the mass spectrometer inlet.…”

Section: Dart-ms For the Identification Of Dyes In Historic Textile Fmentioning

confidence: 99%

Identification of anthraquinone dye colourants in red fibres from an Ohio Hopewell mound site by direct analysis in real time mass spectrometry

Armitage

Day

Jakes

2015

STAR: Science & Technology of Archaeological Research

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Among prehistoric native groups of North America, the Ohio Hopewell was a particularly notable cultural manifestation that prevailed during the Middle Woodland Period (ca. 2100 -1500 BP). The group is defined by the construction of elaborate burial mounds, evidence of ritual burning and cremation ceremonies, The presence of anthraquinones in these Ohio Hopewell textiles, and the absence of the bloodroot alkaloids, supports previous studies suggesting the prehistoric use of Galium species as dye plants in Eastern North America.Statement of significance Among the prehistoric native groups of North America, the Hopewell cultural manifestation are particularly notable for their elaborate ceremonial mounds, and the intricately decorated objects they made. While few textiles have survived, those fragments which remain provide important evidence for the technological knowledge and craftsmanship of the people of the past. A rapid method that requires a very small sample yields information about the red dye colorants employed in this fabrics. Direct analysis in real time-time-of-flight mass spectrometry (DART-MS) was used to examine fibers from red-and yellow-coloured textiles from the Seip Mound Group in Ohio, USA. The analysis showed that compounds characteristic of bedstraw plants of the Galium genus, rather than those from bloodroot, provide the red colour.This supports previous work suggesting the use of bedstraw for dyeing in prehistoric Eastern North America.

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Ambient mass spectrometry: advances and applications in forensics

Cited by 90 publications

References 60 publications

New mass spectrometry techniques for studying physical chemistry of atmospheric heterogeneous processes

New mass spectrometry techniques for studying physical chemistry of atmospheric heterogeneous processes

Analysis of Silicones Released from Household Items and Baby Articles by Direct Analysis in Real Time-Mass Spectrometry

Identification of anthraquinone dye colourants in red fibres from an Ohio Hopewell mound site by direct analysis in real time mass spectrometry

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