Trapping efficiency of selected adsorbents for various airborne pesticides.

Trapping efficiency of selected adsorbents for various airborne pesticides.

Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes (1991-08-01)

R B Leidy, C G Wright

PMID1787261

ABSTRACT

A study was conducted to compare the efficiency of five adsorbents used by government and private laboratories to collect airborne pesticides. Six pesticides, acephate, chlordane, chlorpyrifos, diazinon, heptachlor, and propoxur, were vaporized in a closed system and collected on each of the adsorbents, Chromosorb 102, ORBO 42, ORBO 44 (chlordane and heptachlor only), polyurethane foam (PUF) or Tenax GC, by drawing 250 L of air through the adsorbent. There were no differences in collection efficiency of the five pesticides on Chromosorb 102, ORBO's 42/44, and PUF. The efficiency with Tenax was somewhat less with several of the pesticides.

MATERIALS

Product Number

Brand

Product Description

20832-U

Supelco

ORBO^™ 402 Tenax^® TA specially treated (35/60), 100/50 mg, W,W,W separators, O.D. × L 8 mm × 100 mm, pkg of 50 ea

20051

Supelco

ORBO^™ 609 Amberlite^™ XAD^®-2 (20/50) 400/200 mg, W,W,W separators, O.D. × L 8 mm × 110 mm, pkg of 50 ea

468312

Supelco

Poly(styrene-co-divinylbenzene), microspheres, 6.0-10.0 μm avg. part. size

20265

Supelco

ORBO^™ 53 Activated Silica Gel (20/40) specially cleaned, 400/200 mg with Glass Fiber Filters, GFF,F,F separators, O.D. × L 7 mm × 100 mm, pkg of 50 ea

20033

Supelco

ORBO^™ 554 H₂SO₄ on Silica Gel (20/40) 150/75 mg, W,W,W separators, O.D. × L 6 mm × 75 mm, pkg of 50 ea

20257-U

Supelco

ORBO^™ 23 2-HMP on Amberlite^™ XAD^®-2 (20/40), 120/60 mg, W,W,W separators, O.D. × L 6 mm × 85 mm, pkg of 25 ea

20350

Supelco

ORBO^™ 49P (OVS) Supelpak^™-20 specially treated Amberlite^™ XAD^®-2 (20/40), 270/140 mg, RC,GFF,F,F (specially cleaned) separators, O.D. × L 13-8 mm × 75 mm , OSHA Versatile Sampler (OVS) Tube, pkg of 10 ea

20030-U

Supelco

ORBO^™ 502 Activated Silica Gel (20/45) 100/50 mg, W,W,F separators, O.D. × L 6 mm × 75 mm, pkg of 50 ea

20812-U

Supelco

ORBO^™ 80 Coated Filter, with cassettes unassembled

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)

20029-U

Supelco

ORBO^™ 65P (OVS) Amberlite^™ XAD^®-4 specially cleaned, 160/80 mg, RC,GFF,F,F (specially cleaned) separators, O.D. × L 13-8 mm × 75 mm , OSHA Versatile Sampler (OVS), pkg of 10 ea

20811

Supelco

ORBO^™ 80 Isocyanate Filter, with cassettes: no, filter O.D. 37 mm, pkg of 25 ea

20229

Supelco

ORBO^™ 52 Small Activated Silica Gel (20/40) 150/75 mg, pk 50, W,W,F separators, O.D. × L 6 mm × 75 mm, pkg of 50 ea

20362

Supelco

ORBO^™ 92 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 Vinyl acetate

20258

Supelco

ORBO^™ 43 Supelpak^™-20 specially treated Amberlite^™ XAD^®-2 (20/40), 100/50 mg, W,W,W (specially treated) separators, O.D. × L 8 mm × 100 mm, pkg of 50 ea

20231

Supelco

ORBO^™ 24 2-HMP on Amberlite^™ XAD^®-2 (20/40), 150/75 mg, W,W,W separators, O.D. × L 6 mm × 105 mm, pkg of 25 ea