Analysis of printing and writing papers by using direct analysis in real time mass spectrometry

Adams, Jeanette

doi:10.1016/j.ijms.2010.07.025

Cited by 66 publications

(50 citation statements)

References 40 publications

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“…The application of direct analysis in real time-mass spectrometry (DART-MS) to the fast screening of samples for organic residues is discussed in detail elsewhere in this volume. As a method involving no/minimal sample preparation and allowing non-destructive analysis of suitable samples, it is clear that there are many potential applications in archaeological and cultural heritage situations (88)(89)(90). It may become invaluable for the screening of large numbers of samples, allowing more time to be spent on the preparation and analysis of those which contain organic material.…”

Section: New Mass Spectrometric Techniquesmentioning

confidence: 99%

Organic Residues in Archaeology: The Highs and Lows of Recent Research

Steele

2013

ACS Symposium Series

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The analysis of organic residues from archaeological materials has become increasingly important to our understanding of ancient diet, trade and technology. Residues from diverse contexts have been retrieved and analysed from the remains of food, medicine and cosmetics to hafting material on stone arrowheads, pitch and tar from shipwrecks, and ancient manure from soils. Research has brought many advances in our understanding of archaeological, organic residues over the past two decades. Some have enabled very specific and detailed interpretations of materials preserved in the archaeological record. However there are still areas where we know very little, like the mechanisms at work during the formation and preservation of residues, and areas where each advance produces more questions rather than answers, as in the identification of degraded fats. This chapter will discuss some of the significant achievements in the field over the past decade and the ongoing challenges for research in this area.1341280_File000001_20903114.docPrinted 7/19/2013 2

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Section: New Mass Spectrometric Techniquesmentioning

confidence: 99%

Organic Residues in Archaeology: The Highs and Lows of Recent Research

Steele

2013

ACS Symposium Series

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“…26,31 We have not been able to identify the m/z 205.070 ion observed in the poplar pyrolysis, which is also present in cellulose pyrolysis The m/z 209 ion comes from C11H12O4. It could be either sinapaldehyde or 4-oxyallylsyringol, two isomers that are both products that others have observed in lignin pyrolysis, 22,24,25 although we did not in our experiments. This may again be the result of our using alkali lignin.…”

Section: Resultsmentioning

confidence: 60%

“…17,20,[23][24][25]29 Coniferaldehyde (C10H10O3), which could also be called 4-propenalguaiacol, is responsible for the m/z 179 product ion. 20,22,24,25,29 The identities of the two largest ions plotted on the right in Figure 11 are not certain. The m/z 273 ion is protonated C16H16O4, but the exact identity of this species has not been determined.…”

Section: Resultsmentioning

confidence: 98%

“…The m/z 273 ion is protonated C16H16O4, but the exact identity of this species has not been determined. Adams 22 identified it as 4,4'-dihydroxy-3,3'-dimethoxystilbene, while Evans et al 33 have suggested that identity and two other structures as potential products, all of which involve two guaiacol units bound together by a two-carbon bridge. The exact observed mass of the m/z 329 ion is 329.140 u, which should correspond to [C19H20O5 + H] + .…”

Section: Resultsmentioning

confidence: 99%

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Molecular Analysis of Primary Vapor and Char Products during Stepwise Pyrolysis of Poplar Biomass

2010

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Pyrolysis of biomass produces both pyrolysis oil and solid char. In this study, poplar has been pyrolyzed in a stepwise fashion over a series of temperatures from 200 to 500 °C, and both the primary products contributing to pyrolysis oil and the changes in the pyrolyzing poplar surface leading toward char have been characterized at each step. The primary products were identified by direct analysis in real time (DART) mass spectrometry, and the changes in the poplar surface were monitored using Fourier transform infrared (FTIR) photoacoustic spectroscopy, with a sampling depth of a few micrometers. The primary products from pyrolyzing cellulose, xylan, and lignin under similar conditions were also characterized to identify the sources of the poplar products. ABSTRACT: Pyrolysis of biomass produces both pyrolysis oil and solid char. In this study, poplar has been pyrolyzed in a stepwise fashion over a series of temperatures from 200 to 500 °C, and both the primary products contributing to pyrolysis oil and the changes in the pyrolyzing poplar surface leading toward char have been characterized at each step. The primary products were identified by direct analysis in real time (DART) mass spectrometry, and the changes in the poplar surface were monitored using Fourier transform infrared (FTIR) photoacoustic spectroscopy, with a sampling depth of a few micrometers. The primary products from pyrolyzing cellulose, xylan, and lignin under similar conditions were also characterized to identify the sources of the poplar products.

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“…To address this need, several handheld and field portable mass spectrometers with MS/MS capability and fast data acquisition rates have been developed and applied to the detection of several classes of chemical and biological compounds in the fields of forensics, food industry, industrial hygiene, quality, and consumable products [3][4][5][6] with a high degree of specificity. To provide real-time analysis, several ionization sources, including desorption electrospray ionization (DESI), direct analysis in real time (DART), and paperspray ionization have been developed and used in conjunction with handheld, field portable, and benchtop mass spectrometers [7][8][9][10][11]. These ionization sources lack or have limited separation capability.…”

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confidence: 99%

Portable, Battery Operated Capillary Electrophoresis with Optical Isomer Resolution Integrated with Ionization Source for Mass Spectrometry

Moini

Rollman

2015

J. Am. Soc. Mass Spectrom.

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Abstract. We introduce a battery operated capillary electrophoresis electrospray ionization (CE/ESI) source for mass spectrometry with optical isomer separation capability. The source fits in front of low or high resolution mass spectrometers similar to a nanospray source with about the same weight and size. The source has two high voltage power supplies (±25 kV HVPS) capable of operating in forward or reverse polarity modes and powered by a 12 V rechargeable lithium ion battery with operation time of~10 h. In ultrafast CE mode, in which short narrow capillaries (≤15 μm i.d., 15-25 cm long) and field gradients ≥1000 V/cm are used, peak widths at the base are <1 s wide. Under these conditions, the source provides high resolution separation, including optical isomer resolution in~1 min. Using a low resolution mass spectrometer (LTQ Velos) with a scan time of 0.07 s/scan, baseline separation of amino acids and their optical isomers were achieved in~1 min. Moreover, bovine serum albumin (BSA) was analyzed in~1 min with 56% coverage using the data-dependent MS/MS. Using a high resolution mass spectrometer (Thermo Orbitrap Elite) with 15,000 resolution, the fastest scan time achieved was 0.15 s, which was adequate for CE-MS analysis when optical isomer separation is not required or when the optical isomers were well separated. Figures of merit including a detection limit of 2 fmol and linear dynamic range of two orders of magnitude were achieved for amino acids.

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Analysis of printing and writing papers by using direct analysis in real time mass spectrometry

Cited by 66 publications

References 40 publications

Organic Residues in Archaeology: The Highs and Lows of Recent Research

Organic Residues in Archaeology: The Highs and Lows of Recent Research

Molecular Analysis of Primary Vapor and Char Products during Stepwise Pyrolysis of Poplar Biomass

Portable, Battery Operated Capillary Electrophoresis with Optical Isomer Resolution Integrated with Ionization Source for Mass Spectrometry

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