Fast detection of preservatives on waste wood with GC/MS, GC-ECD and ion mobility spectrometry

Schröder, Wolfgang P.; Matz, Gerhard; Kbler, Jrgen

doi:10.1002/(sici)1520-6521(1998)2:5<287::aid-fact6>3.0.co;2-p

Cited by 12 publications

(8 citation statements)

References 12 publications

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“…Recently, a multicapillary (MC) column (a bundle of 919 40-μm capillaries) became commercially available (Alltech, Deerfield, IL) in the form of a 1-m helix . The MC column was shown to preserve the advantages of both packed and capillary columns while eliminating their drawbacks , and turned out to be an attractive tool for GC analysis of organohalogen compounds ,, and for time-resolved introduction of organometallic compounds in atomic spectrometry. − Baseline separations could be achieved within a fraction (one-tenth) of the time required in capillary GC. They were reached in the isothermal mode that allowed some reduction of the oven size and increased the sample throughput.…”

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confidence: 99%

“…Capillary columns offer improved efficiency, but runs are long and the need to cool the oven to the initial temperature limits the sample throughput to 2-3 samples/ h. Recently, a multicapillary (MC) column (a bundle of 919 40µm capillaries) became commercially available (Alltech, Deerfield, IL) in the form of a 1-m helix. 10 The MC column was shown to preserve the advantages of both packed and capillary columns while eliminating their drawbacks 10,11 and turned out to be an attractive tool for GC analysis of organohalogen compounds 10,12,13 and for time-resolved introduction of organometallic compounds in atomic spectrometry. [14][15][16] Baseline separations could be achieved within a fraction (one-tenth) of the time required in capillary GC.…”

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confidence: 99%

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Species-Selective Analysis by Microcolumn Multicapillary Gas Chromatography with Inductively Coupled Plasma Mass Spectrometric Detection

Rodrı́guez

Mounicou²,

Łobiński³

et al. 1999

Anal. Chem.

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A glass rod (5-20 cm long, 2 mm o.d.) containing more than 1200 parallel microchannels (< 40 microns i.d.) was converted into a high-resolution (> 100 theoretical plates cm-1) GC column by coating the inside of each channel in a way that compensated for the dispersion of the channel inner diameter. The columns were evaluated for the separation of mixtures of several organometallic (Hg, Sn, Pb) compounds prior to on-line sensitive metalselective detection by ICPMS. Chromatographic separation conditions were optimized to enable a rapid (within a maximum 30 s) multielemental speciation analysis. Absolute detection limits were 0.1 pg for Hg, 0.05 pg for Sn, and 0.03 pg for Pb using the carrier gas flows of approximately 200 mL min-1. The microcolumn multicapillary GC/ICPMS developed was applied to the analysis of a number of environmental samples. The results were validated with certified reference materials for tin (BCR477, PACS-2) and mercury (DORM-1, TORT-1).

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confidence: 99%

Species-Selective Analysis by Microcolumn Multicapillary Gas Chromatography with Inductively Coupled Plasma Mass Spectrometric Detection

Rodrı́guez

Mounicou²,

Łobiński³

et al. 1999

Anal. Chem.

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“…From the standard deviation of the background signal (s B ) 0.056 µV (n ) 6)), the detection limit was calculated to be 202 µg of PCP within the heated area. Taking into account the size of the heated area (20 cm 2 ), an estimated 5-mm thickness of the contaminated surface layer in which PCP is distributed 8 and a wood density of 0.5 g/cm 3 , this detection limit can be converted into a concentration of 43 µg/g (ppm) of PCP relative to the mass of impregnated wood.…”

Section: Resultsmentioning

confidence: 99%

“…With many of them, such as the Curie-point pyrolyzer, 5 FT-IR spectroscopy, 6 or the photon activation analysis, 7 on-site use is not possible. Detection of PCP with mobile GC-MS, GC-ECD, or ion mobility spectrometry 8 still requires the homogenization of the wood sample, being both a time-consuming and destructive procedure. Other alternative methods, e.g., laser-induced plasma-spectroscopy and X-ray fluorescence spectroscopy, had already proven to be capable of detecting different elements in wood.…”

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confidence: 99%

“…Thermodesorption sampling in combination with GC-MS detection is already used in an instrument for the determination of PCP in wood. 8 In that instrument thermodesorption sampling is based on direct heating of the sample by using a heated branding iron; therefore it requires contact with the contaminated material. Moreover, the use of high vacuum within the MS line further complicates the setup of the system.…”

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Screening of Pentachlorophenol-Contaminated Wood by Thermodesorption Sampling and Photoacoustic Detection

Beck

Bozóki

2000

Anal. Chem.

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The still-remaining high amounts of pentachlorophenol (PCP), used as wood preservative, in buildings and in waste wood are a potential risk for humans and the environment. To ensure a fast and selective measurement of PCP, a screening tool was developed, which is not only sensitive, but, unlike conventional methods, it requires no added chemicals, is simple, cost-effective, mobile, and capable of on-site operation. The instrument combines light-induced thermodesorption sampling followed by an external cavity diode laser based photoacoustic detector. Measurements on wood samples proved that the system can determine PCP to as low as a concentration of 10 microg/cm2 within minutes without destruction of the sample. The system was calibrated with reference to the concentration of PCP impregnated on the wood surface. It is demonstrated that measurements are not influenced by moisture content of the wood samples.

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Mobile Mass Spectrometry Used for On‐Site/In Situ Environmental Measurements

Matz

Schröder

Kotiaho

2000

Encyclopedia of Analytical Chemistry

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The potential of mass spectrometry (MS) and gas chromatography/mass spectrometry (GC/MS) techniques for on‐site analysis of compounds in a variety of matrixes such as air, water, soil and surfaces is discussed. The fundamental principles of operation including different mass separation procedures, modes of injection and separation methods for mixtures are presented here with a special emphasis on equipment suitable for measurement in the field. Commercially available systems as well as prototypes are described in detail. The power of MS and/or GC/MS analyses on‐site compared with conventional methods carried out in the laboratory is demonstrated in a detailed review of the literature dealing with measurement campaigns and experiences when applying mobile MS and GC/MS. In conclusion, mobile mass spectrometers have reached a high standard of quality and the operational areas in which they are utilized are likely to increase considerably in the future.

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Fast detection of preservatives on waste wood with GC/MS, GC-ECD and ion mobility spectrometry

Cited by 12 publications

References 12 publications

Species-Selective Analysis by Microcolumn Multicapillary Gas Chromatography with Inductively Coupled Plasma Mass Spectrometric Detection

Species-Selective Analysis by Microcolumn Multicapillary Gas Chromatography with Inductively Coupled Plasma Mass Spectrometric Detection

Screening of Pentachlorophenol-Contaminated Wood by Thermodesorption Sampling and Photoacoustic Detection

Mobile Mass Spectrometry Used for On‐Site/In Situ Environmental Measurements

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