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

RESUMO

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.

MATERIAIS

Número do produto

Marca

Descrição do produto

57328-U

Supelco

Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), needle size 24 ga, for use with manual holder

57348-U

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Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), needle size 24 ga, StableFlex

57298-U

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Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with autosampler

57299-U

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Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with manual holder or autosampler, fiber L 2 cm

57329-U

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Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), needle size 24 ga, StableFlex, for use with autosampler

20358

Supelco

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)

10478-U

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

20355

Supelco

ORBO^™ 78 HBr on Carboxen^® 564 specially cleaned (20/45), 400/200 mg, W,W,W separators, O.D. × L 6 mm × 110 mm, pkg of 25 ea

25467

Supelco

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

57318

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Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga

25461

Supelco

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

57295-U

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Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 85 μm(CAR/PDMS, needle size 23 ga, StableFlex, for use with autosampler

57319

Supelco

Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 75 μm(CAR/PDMS, needle size 24 ga, for use with autosampler

57335-U

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Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 85 μm(CAR/PDMS, needle size 24 ga, StableFlex, for use with autosampler

24246

Supelco

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

57334-U

Supelco

Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 85 μm(CAR/PDMS, needle size 24 ga, for use with manual holder, StableFlex fiber

57343-U

Supelco

Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 75 μm(CAR/PDMS, needle size 23 ga, for use with autosampler

57344-U

Supelco

Conjunto de fibras de SPME Carboxeno/polidimetilsiloxano (CAR/PDMS), d_f 75 μm(CAR/PDMS, needle size 23 ga, for use with manual holder

11072-U

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

24241-U

Supelco

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

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

54041-U

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

57914-U

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Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 2 cm

10477-U

Supelco

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

10269

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

10471

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

23446-U

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ORBO^™-93 Sorbent Tube, 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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Conjunto de fibras para SPME de divinilbenzeno-carboxeno-polidimetilsiloxano (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 1 cm

11048-U

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

54294-U

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Carboxen^® 572 for Tobacco Smoke, Adsorbent Bed Wt: 300 mg, cartridge size 3 mL, pkg of 50 ea