Multi-layer cartridges filled with multi-walled carbon nanotubes for the determination of volatile organic compounds in indoor air.

Multi-layer cartridges filled with multi-walled carbon nanotubes for the determination of volatile organic compounds in indoor air.

Analytical sciences : the international journal of the Japan Society for Analytical Chemistry (2008-04-12)

Jiemin Liu, Lin Li, Zhanwu Ning, Peng Zhao, Huili Fan

RESUMEN

A kind of new multi-layer adsorbent including Tenax TA/multi-walled carbon nanotubes (MWCNTs)/Carboxen 564 was developed for collecting volatile organic compounds. The adsorption and desorption efficiencies of 11 kinds of adsorbents (including Activated charcoal, Tenax TA, Carboxen 564, Chromosorb 101, Chromosorb 102, Chromosorb 103, Chromosorb 105, Porapak Q, GDX 301, XAD-2, and MWCNTs) were compared. By combining the advantages of Tenax TA, MWCNTs, and Carboxen 564, new type of multi-layer adsorbents was developed. The adsorption and desorption efficiency, the sampling reproducibility, and the effect of water were improved using multi-layer adsorbents, Tenax TA/MWCNTs/Carboxen 564. New multi-layer adsorbents were successfully applied to the determination of volatile organic compounds (VOCs) in ambient air.

MATERIALES

Referencia del producto

Marca

Descripción del producto

57328-U

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Fibra de divinilbenceno/carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, needle size 23 ga, StableFlex, for use with autosampler

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Fibra de divinilbenceno/carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, needle size 23 ga, StableFlex, for use with manual holder or autosampler, fiber L 2 cm

57329-U

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Fibra de divinilbenceno/carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, needle size 24 ga, StableFlex, for use with autosampler

20358

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ORBO^™ 90 Carboxen^® 564 (20/45) 160/80 mg, W,F,F separators, O.D. × L 6 mm × 75 mm, pkg of 25 ea, for analyte group MEK (methylethyl ketone)

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ORBO-78 400/200 MG PK/25, W,W,W separators, O.D. × L 6 mm × 110 mm, pkg of 25 ea

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Columna capilar para GC Carboxen^®-1010 PLOT, L × I.D. 30 m × 0.53 mm, average thickness 30 μm

57318

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Fibra de carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, d_f 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga

25461

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Columna capilar para GC Carboxen^®-1006 PLOT, L × I.D. 30 m × 0.53 mm, average thickness 30 μm

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Fibra de carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, d_f 85 μm(CAR/PDMS, needle size 23 ga, StableFlex, for use with autosampler

57319

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Fibra de carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, d_f 75 μm(CAR/PDMS, needle size 24 ga, for use with autosampler

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Fibra de carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, d_f 85 μm(CAR/PDMS, needle size 24 ga, StableFlex, for use with autosampler

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Columna capilar para GC Carboxen^®-1010 PLOT, L × I.D. 30 m × 0.32 mm, average thickness 15 μm

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Fibra de carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, d_f 75 μm(CAR/PDMS, needle size 23 ga, for use with autosampler

57344-U

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Fibra de carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, d_f 75 μm(CAR/PDMS, needle size 23 ga, for use with manual holder

11072-U

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24241-U

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Columna capilar para GC Carboxen^®-1006 PLOT, L × I.D. 30 m × 0.32 mm, average thickness 15 μm

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Tenax^® TA / Carboxen^® 1018, glass TD tube, preconditioned, O.D. × L 1/4 in. × 3 1/2 in., Sealed with (Swagelok^® End-Fittings), pkg of 10 ea

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Carboxen^® 1000 Reversible SPE Tube, 200 mg/mL, pk 30

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