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

57348-U

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

57328-U

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

57298-U

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

57299-U

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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

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)

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

20355

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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

10478-U

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Carboxen^® Adsorbent, matrix Carboxen^® 1000, 60-80 mesh, bottle of 10 g

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

25467

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

25461

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

57295-U

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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

57335-U

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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

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

24246

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

57334-U

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

57343-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 autosampler

57344-U

Supelco

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

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

11072-U

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Carboxen^® Adsorbent, matrix Carboxen^® 572, 20-45 mesh, bottle of 10 g

28718-U

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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

57914-U

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

54041-U

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

10477-U

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Carboxen^® Adsorbent, matrix Carboxen^® 1000, 40-60 mesh, bottle of 50 g

10471

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Carboxen^® Adsorbent, matrix Carboxen^® 1003, 40-60 mesh, bottle of 10 g

10269

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Carboxen^® Adsorbent, matrix Carboxen^® 569, 20-45 mesh, bottle of 10 g

23446-U

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Tubo absorbente ORBO^™-93, ORBO tube I.D. × L 6 mm × 95 mm, Bed A 180 mg, Bed B 90 mg, 60/80 mesh, pkg of 25 ea

57912-U

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Fibra de divinilbenceno/carboxeno/polidimetilsiloxano (DVB/CAR/PDMS) de SPME, for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 1 cm

11048-U

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Carboxen^® Adsorbent, matrix Carboxen^® 569, 20-45 mesh, bottle of 500 g

10263

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Carboxen^® Adsorbent, matrix Carboxen^® 563, 20-45 mesh, bottle of 10 g