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Development of a rapid and accurate method for the determination of key compounds of pig odor.

Journal of chromatography. A (2004-07-06)
Stephanie Willig, Markus Lacorn, Rolf Claus
ABSTRACT

Sampling of odor substances in the emissions from swine production facilities is still the limiting step for routine odor quantification. Solid sorption techniques based on cartridges were developed for three categories of substances (indoles, volatile fatty acids and methylthiol) and were standardized to a sampling time of 15 min. These cartridges also trap dust particles which transport odor substances. Quantification was performed by RP-HPLC or GC. Reliability criteria revealed excellent values for sensitivity (lower ppb level) and repeatability (R.S.D. < 10%), thus they are comparable to fiber solid-phase micro extraction sorption techniques. Parallel determinations in feces and air revealed high correlations (r = 0.99, P < 0.01), so that microbial processes during digestion determine odor quality and hence provide a possibility to reduce odor via feeding.

MATERIALS
Product Number
Brand
Product Description

Supelco
IonSense® PDMS/DVB SPE-it Tips, pkg of 96 ea
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SPME fiber assortment kit 5, needle size 23 ga, for use with autosampler
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SPME fiber assortment kit 2, for use with manual holder, needle size 24 ga
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SPME fiber assembly, Carbowax-Polyethylene Glycol (PEG) Coating, needle size 23 ga, df 60 μm (PEG), for use with autosampler
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SPME fiber assembly, Carbowax-Polyethylene Glycol (PEG) Coating, needle size 23 ga, df 60 μm (PEG), metal alloy fiber, for use with manual holder
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SPME fiber assortment kit 2, for use with autosampler, needle size 23 ga
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SPME StableFlex fiber assortment kit, needle size 23 ga, for use with autosampler
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SPME fiber assortment kit 4, for use with autosampler, needle size 23 ga
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SPME fiber assortment kit 1, for use with autosampler, needle size 24 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), fused silica fiber, df 65 μm (PDMS/DVB), for use with manual holder, needle size 23 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, for use with autosampler
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, for use with manual holder
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SPME fiber assortment kit 1, for use with manual holder, needle size 24 ga
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SPME StableFlex fiber assortment kit, for use with manual holder
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SPME fiber assortment kit 4, for use with manual holder, size 24 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, StableFlex, for use with manual holder
Supelco
SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 24 ga, StableFlex, for use with autosampler
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SPME fiber assortment kit 2, for use with autosampler, size 24 ga
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), for use with autosampler, needle size 23 ga
Supelco
SPME fiber assortment kit 1, for use with autosampler, needle size 23 ga
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SPME StableFlex fiber assortment kit, for use with autosampler, needle size 24 ga
Supelco
SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), needle size 23 ga, PDMS/DVB StableFlex, for use with autosampler
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SPME fiber assortment kit 4, for use with autosampler, size 24 ga
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SPME LC Tips, C18, tray of 96 ea
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SPME Fiber Assembly Polydimethylsiloxane/Divinylbenzene (PDMS/DVB), df 65 μm (PDMS/DVB), for use with autosampler, needle size 23 ga, metal alloy fiber
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SPME fiber assembly Polydimethylsiloxane (PDMS), df 100 μm (PDMS), for use with autosampler, needle size 24 ga
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SPME fiber assembly Polydimethylsiloxane (PDMS), df 7 μm (PDMS), needle size 24 ga, for use with manual holder
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SPME fiber assembly polyacrylate (PA), df 85 μm (PA), for use with autosampler, needle size 24 ga
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SPME Sampling Stand, for use with 4 mL vials
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SPME Portable Field Sampler, coating CAR/PDMS