6533b82bfe1ef96bd128d502
RESEARCH PRODUCT
Evaluation of working air quality by using semipermeable membrane devices
Miguel De La GuardiaAgustín PastorFrancesc A. Esteve-turrillassubject
Detection limitChromatographyDiazinonAir pollutionPesticideContaminationmedicine.disease_causeBiochemistryAnalytical Chemistrychemistry.chemical_compoundchemistryChlorpyrifosEnvironmental chemistrymedicineEnvironmental ChemistryGas chromatographyAir quality indexSpectroscopydescription
Abstract It has been evaluated the use of semipermeable membrane devices (SPMDs) as passive samplers of organophosphorus pesticides from air, in order to determine the contamination of working environments. Additionally, the use of SPMDs as portable samplers has been also considered. The analytical methodology for the determination of diazinon, chlorpyrifos-methyl, pirimiphos-methyl, chlorpyrifos and fenthion in SPMDs exposed to contaminated air was based on microwave-assisted extraction and gas chromatography with mass spectrometry determination. Limit of detection (LOD) values from 2 to 4 ng SPMD−1 and repeatability from 2 to 7% were obtained by using the aforementioned methodology. Theoretical calculated sampling rates were employed for the estimation of the pesticide concentration in air, by using the pesticide mass retained in the deployed SPMD. The obtained LOD values, for a sampling time of 7 days, were from 1 to 2 ng m−3. The evaluation of the air quality of a pesticide laboratory with an intensive use of diazinon and chlorpyrifos has been made in order to check the operation safety conditions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-09-01 | Analytica Chimica Acta |