Comparison of MTBSTFA and BSTFA in derivatization reactions of polar compounds prior to GC/MS analysis

Schummer, Claude; Delhomme, Olivier; Appenzeller, Brice; Wennig, Robert; Millet, Maurice

doi:10.1016/j.talanta.2008.09.043

Cited by 264 publications

(200 citation statements)

References 19 publications

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“…The vials were then heated to 100°C for 1 hr to convert hydrogen-bearing functional groups (e.g., OH and NH 2 ) to tert-butyldimethylsilyl (tBDMS) derivatives (MacKenzie et al 1987;Casal et al 2004;Schummer et al 2009). Blank samples were also prepared to using the same protocols in order to identify any background contamination.…”

Section: Gc-msmentioning

confidence: 99%

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N₂-, CH₄-, AND CO-CONTAINING ICES

Materese

Cruikshank

Sandford

et al. 2015

ApJ

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Radiation processing of the surface ices of outer Solar System bodies may be an important process for the production of complex chemical species. The refractory materials resulting from radiation processing of known ices are thought to impart to them a red or brown color, as perceived in the visible spectral region. In this work, we analyzed the refractory materials produced from the 1.2-keV electron bombardment of low-temperature N 2 -, CH 4 -, and CO-containing ices (100:1:1), which simulates the radiation from the secondary electrons produced by cosmic ray bombardment of the surface ices of Pluto. Despite starting with extremely simple ices dominated by N 2 , electron irradiation processing results in the production of refractory material with complex oxygen-and nitrogenbearing organic molecules. These refractory materials were studied at room temperature using multiple analytical techniques including Fourier-transform infrared spectroscopy, X-ray absorption near-edge structure (XANES) spectroscopy, and gas chromatography coupled with mass spectrometry (GC-MS). Infrared spectra of the refractory material suggest the presence of alcohols, carboxylic acids, ketones, aldehydes, amines, and nitriles. XANES spectra of the material indicate the presence of carboxyl groups, amides, urea, and nitriles, and are thus consistent with the IR data. Atomic abundance ratios for the bulk composition of these residues from XANES analysis show that the organic residues are extremely N-rich, having ratios of N/C ∼ 0.9 and O/C ∼ 0.2. Finally, GC-MS data reveal that the residues contain urea as well as numerous carboxylic acids, some of which are of interest for prebiotic and biological chemistries.

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Section: Gc-msmentioning

confidence: 99%

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N₂-, CH₄-, AND CO-CONTAINING ICES

Materese

Cruikshank

Sandford

et al. 2015

ApJ

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“…A half of extracts were transferred into a conical vial accurately by pipette (Across Plus, 250 µL) and derivatized with BSTFA/TMCS 99:1 (Regis Technologies, Inc. USA) in sealed vials at 70°C for 2 h and then analyzed by gas chromatography-mass spectrometry (GC: Agilent 6890, MS: Agilent 5973) (Schummer et al, 2009;Pietrogrande et al, 2010). Due to the extract solvents and BSTFA/TMCS derivatization in our sample pretreatment, oxalic acid can not be accurately quantified (Kawamura and Ikushima, 1993;Pietrogrande et al, 2010).…”

Section: Organic Acids Analysismentioning

confidence: 99%

Seasonal Variations and Sources of Carboxylic Acids in PM2.5 in Wuhan, China

Guo

Zhou

Wang

et al. 2015

Aerosol Air Qual. Res.

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Aerosol PM 2.5 samples collected from three sites in Wuhan, China, during 2011China, during -2012 were analyzed by gas chromatographymass spectrometry to better understand the molecular composition and sources of carboxylic acids. The concentrations of total monocarboxylic acids did not show apparent seasonal variations in Wuhan. Palmitic acid and stearic acid were the most abundant species, accounting for 32.4%-62.4% (average 51.8%) of all quantified monocarboxylic acids. Oxalic acid was found as the most dominant dicarboxylic acid, followed by succinic acid at the three sampling sites. The total concentration of dicarboxylic acids displayed obvious seasonal variation, with the highest in summer (1036.7-1546.4 ). Positive matrix factorization (PMF) revealed that coal combustion, trafficrelated emissions and biomass burning are the most important contributors to carboxylic acids at industrial site, downtown site and botanical garden, respectively. Plant waxes and secondary photochemical products are also significant sources of carboxylic acids at the three sampling sites.

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“…They are found in water for a long period of time if large amounts are released over a long time or if low amount are released over an extended time period [28]. Pentachlorophenol (PCP) one of the classified priority phenols is used as a wood preservative [2,4,5]. Phenol is generated from lignin degradation in paper production and chlorophenols can be generated from chlorination of drinking water.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Phthalate and Priority Phenols from a Wastewater Treatment Plant in Cape Town, South Africa

2017

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Continuous disposal of endocrine-disrupting chemicals (EDCs) into the environment can lead to serious human health problems and can affect aquatic organisms. A number of investigations suggested that final effluents of wastewater treatment plants are the main source of EDCs into the aquatic environment. A developed analytical method was used for the analysis of priority phenols as tert-butyl derivatives and phthalates in wastewater. Qualitative and quantitative analyses were performed by gas chromatography -mass spectrometry (GC-MS) using DB-5MS column. These compounds were evaluated using solid-phase extraction for raw and treated wastewater from a wastewater treatment plant. Concentrations of analytes ranged from below limit of detection to 570µgL -1 for phenols and below limit of quantification to 796µgL -1 for phthalates. Diethyl phthalate was the most prominent phthalate ester with pentachlorophenol for the corresponding phenol. The average percent removal varied from 52.63 to 100%. The result clearly shows that environmental endocrine disrupting chemicals are not completely removed from treated wastewater.

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Comparison of MTBSTFA and BSTFA in derivatization reactions of polar compounds prior to GC/MS analysis

Cited by 264 publications

References 19 publications

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N₂-, CH₄-, AND CO-CONTAINING ICES

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N₂-, CH₄-, AND CO-CONTAINING ICES

Seasonal Variations and Sources of Carboxylic Acids in PM2.5 in Wuhan, China

Analysis of Phthalate and Priority Phenols from a Wastewater Treatment Plant in Cape Town, South Africa

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Comparison of MTBSTFA and BSTFA in derivatization reactions of polar compounds prior to GC/MS analysis

Cited by 264 publications

References 19 publications

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N2-, CH4-, AND CO-CONTAINING ICES

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N2-, CH4-, AND CO-CONTAINING ICES

Seasonal Variations and Sources of Carboxylic Acids in PM2.5 in Wuhan, China

Analysis of Phthalate and Priority Phenols from a Wastewater Treatment Plant in Cape Town, South Africa

Contact Info

Product

Resources

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ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N₂-, CH₄-, AND CO-CONTAINING ICES

ICE CHEMISTRY ON OUTER SOLAR SYSTEM BODIES: ELECTRON RADIOLYSIS OF N₂-, CH₄-, AND CO-CONTAINING ICES