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Merck

[HPLC determination of low concentrations of benzene].

Giornale italiano di medicina del lavoro (1988-07-01)
S Ghittori, L Maestri, M L Fiorentino, M Imbriani
PMID3154342
ABSTRACT

A laboratory study, using generated atmosphere containing 0.14/23.3 mg/m3 of Benzene, was conducted to adapt an existing industrial hygiene monitoring method for measuring low concentrations of Benzene. This method was developed to determine concentrations of Benzene in the ambient air and around refinery/petrochemical plant. The air sample is collected on a diffusive personal sampler (Zambelli-TK 200) and analyzed by desorption with a mixture of methylene chloride and ethyl acetate followed by quantification using HPLC-Fluorescence detector. The method used did not detect aliphatic or alicyclic hydrocarbons. The HPLC-Fluorescence method is compared with a gas chromatographic method that uses capillary column and flame ionization detection after a collection of air sample on a Carbotrap 100 tube and following thermal desorption.

MATERIALS
Product Number
Brand
Product Description
10435-U
Supelco
Carbotrap® Adsorbent, matrix Carbotrap® X, 20-40 mesh, bottle of 10 g
28283-U
Supelco
Carbotrap® 300, glass TD tube, fritted, O.D. × I.D. × L 6 mm × 4 mm × 7 in., preconditioned, pkg of 1 ea
20287
Supelco
Carbotrap® Adsorbent, matrix Carbotrap® B, 20-40 mesh, bottle of 10 g
29532-U
Supelco
Carbotrap® 300, glass TD tube, fritted, O.D. × L 1/4 in. × 3 1/2 in., preconditioned, pkg of 10 ea
21705-U
Supelco
Carbotrap® 300, O.D. × L 1/4 in. × 3 1/2 in., stainless steel TD tube, preconditioned, pkg of 10 ea
11047-U
Supelco
Carbotrap® Adsorbent, matrix Carbotrap® C, 20-40 mesh, bottle of 500 g
28311-U
Supelco
Carbotrap® 349, glass TD tube, fritted, O.D. × I.D. × L 6 mm × 4 mm × 7 in., preconditioned, pkg of 1 ea
30139-U
Supelco
Carbotrap® 300, stainless steel TD tube, unconditioned, pkg of 10 ea
28273-U
Supelco
Carbotrap® 300, stainless steel TD tube, O.D. × I.D. × L 6 mm × 4 mm × 7 in., preconditioned, pkg of 1 ea
20309
Supelco
Carbotrap® Adsorbent, matrix Carbotrap® C, 20-40 mesh, bottle of 10 g
20370-U
Supelco
Carbotrap® 300, stainless steel TD tube, O.D. × I.D. × L 1/4 in. × 5 mm × 7 in., preconditioned, pkg of 1 ea
29746-U
Supelco
Carbotrap® 300, O.D. × L 1/4 in. × 3 1/2 in., stainless steel TD tube, Sealed with Brass Endcaps, preconditioned, pkg of 10 ea
29752-U
Supelco
Carbotrap® 349, O.D. × L 1/4 in. × 3 1/2 in., glass TD tube, fritted, Sealed with Brass Endcaps, preconditioned, pkg of 10 ea
29751-U
Supelco
Carbotrap® 300, O.D. × L 1/4 in. × 3 1/2 in., glass TD tube, fritted, Sealed with Brass Endcaps, preconditioned, pkg of 10 ea
29531-U
Supelco
Carbotrap® 217, glass TD tube, fritted, O.D. × L 1/4 in. × 3 1/2 in., preconditioned, pkg of 10 ea
20083-U
Supelco
Carbotrap® 202, stainless steel TD tube, O.D. × L 1/4 in. × 3 1/2 in., preconditioned, pkg of 10 ea
20013-U
Supelco
Carbotrap® 217, stainless steel TD tube, O.D. × L 1/4 in. × 3 1/2 in., preconditioned, pkg of 10 ea
28313-U
Supelco
Carbotrap® 202, glass TD tube, fritted, O.D. × I.D. × L 6 mm × 4 mm × 7 in., preconditioned, pkg of 1 ea
20254-U
Supelco
ORBO™ 101 Carbotrap® B (20/40), 100/50 mg, W,W,W separators, O.D. × L 6 mm × 70 mm, pkg of 25 ea
29744-U
Supelco
Carbotrap® 217, O.D. × L 1/4 in. × 3 1/2 in., stainless steel TD tube, Sealed with Brass Endcaps, preconditioned, pkg of 10 ea
29745-U
Supelco
Carbotrap® 202, O.D. × L 1/4 in. × 3 1/2 in., stainless steel TD tube, Sealed with Brass Endcaps, preconditioned, pkg of 10 ea
29750-U
Supelco
Carbotrap® 217, O.D. × L 1/4 in. × 3 1/2 in., glass TD tube, fritted, Sealed with Brass Endcaps, preconditioned, pkg of 10 ea
20255-U
Supelco
ORBO™ 100 on Carbotrap® B (20/40), 350/175 mg, W,W,W separators, O.D. × L 7 mm × 110 mm, pkg of 25 ea
30137-U
Supelco
Carbotrap® 217, stainless steel TD tube, O.D. × L 1/4 × 3 1/2, unconditioned, pkg of 10 ea