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Laboratory validation of a passive sampler for SO2 atmospheric monitoring
| Content Provider | Scilit |
|---|---|
| Author | Cruz, Lícia P. S. Campos, Vânia P. Novaes, Jussival A. P. Tavares, Tania M. |
| Copyright Year | 2005 |
| Description | The performance of a passive sampler was tested under exposure in Teflon chamber. The SO2 trapped in impregnated filter with 1.0 x 10-2 mol L-1 Na2CO3 solution was extracted in ultrasound bath with H2O2 solution for 15 min and determined as SO4(2-) by ion chromatography. The sampler presented good performance except for air in total stillness condition (0 m s-1), for very short exposure periods (0.5 h), for atmosphere with O3 > 150 mug m-3 and for high concentrations of reduced sulfur compounds. The relative humidity of the air (20 - 80%) and the exposure to zero concentration did not affect the sampler performance. It showed stability for one month at 4 ºC or for one week at about 25 ºC. Its precision varied within 3.5 and 23% depending of the SO2 concentration and the accuracy varied from 91 to 100%. |
| Related Links | http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0103-50532005000100008&lng=en&nrm=iso&tlng=en |
| Ending Page | 57 |
| Page Count | 8 |
| Starting Page | 50 |
| ISSN | 01035053 |
| e-ISSN | 16784790 |
| DOI | 10.1590/s0103-50532005000100008 |
| Journal | Journal of the Brazilian Chemical Society |
| Issue Number | 1 |
| Volume Number | 16 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 2005-02-01 |
| Access Restriction | Open |
| Subject Keyword | Journal of the Brazilian Chemical Society Analytical Chemistry Passive Sampling Atmospheric Sulfur Dioxide Air Monitoring |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
