Determination of hydrogen cyanide in residential ambient air using SPME coupled with GC–MS
| Autor: | Sharifah Mazrah Sayed Mohamed Zain, Rafiza Shaharudin, Muhammad Amir Kamaluddin, Siti Fatimah Daud |
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| Rok vydání: | 2017 |
| Předmět: |
Atmospheric Science
Reproducibility Gold mining 010504 meteorology & atmospheric sciences Calibration curve business.industry Cyanide 010401 analytical chemistry Extraction (chemistry) Hydrogen cyanide Analytical chemistry Mass spectrometry 01 natural sciences Pollution 0104 chemical sciences chemistry.chemical_compound chemistry Gas chromatography–mass spectrometry business Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | Atmospheric Pollution Research. 8:678-685 |
| ISSN: | 1309-1042 |
| Popis: | Hydrogen cyanide (HCN) is commonly released into the atmosphere from vehicle emissions, biomass burning and industrial processes such as gold mining, pesticide production, and chemical manufacturing. The aim of this study was to quantify the ambient HCN concentration in a residential area close to a gold mine using solid-phase micro extraction (SPME) coupled with gas chromatography–mass spectrometry (GC–MS) and calculate it's potential health risks. Air samples were collected at a distance of 0.1, 1.0 and 2.0 km away from the gold mine. All cyanide compounds were extracted using 75 μm carbowax/polydimethylsiloxane-coated SPME fibre and analysed using GC–MS. Calibration curve was constructed using standard concentrations ranged between 5 and 500 μg L −1 . This method showed good linearity (r 2 = 0.999) and accuracy (recoveries = 84–119%), reproducibility (relative standard deviation |
| Databáze: | OpenAIRE |
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