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Jiraungkoorskul Wannee 《Environmental science and pollution research international》2019,26(15):14712-14716
Environmental Science and Pollution Research - Tinospora crispa stem aqueous extractions for various time durations were determined regarding their total phenolic content and their larvicidal... 相似文献
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Kachenton Supicha Jiraungkoorskul Wannee Kangwanrangsan Niwat Tansatit Tawewan 《Environmental science and pollution research international》2019,26(15):14706-14711
Environmental Science and Pollution Research - The consumption trend of nanoparticles by industry in this moment pays attention to titanium nanoparticles (TiNPs), due to their various applications:... 相似文献
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Razote E Jeon I Maghirang R Chobpattana W 《Journal of environmental science and health. Part. B》2002,37(4):365-378
A new dynamic air sampling system was devised and evaluated in conjunction with solid phase microextraction (SPME) fiber materials for extracting odor-causing volatile organic compounds (VOCs) present in swine building environments. Utilizing a standard solution consisting of 11 compounds (i.e., volatile fatty acids, indoles, and phenol), sampling times, volumes, and flow rates were adjusted to establish optimal extraction conditions. Results indicated that the sampling system was effective with the Carboxen/Polydimethylsiloxane (CAR/PDMS) fiber in extracting all 11 standard compounds. The best sampling conditions for the extraction were a 100-mL sampling vial subjected to a continuous flow of 100 mL/min for 60 min. The gas chromatographic analysis showed that the reproducibility was within acceptable ranges for all compounds (RSD=4.24-17.26% by peak areas). In addition, field tests revealed that the sampling system was capable of detecting over 60 VOCs in a swine house whose major components were identified by gas chromatography-mass spectrometry (GC-MS) and by their retention times as volatile fatty acids, phenols, indole, and skatole. The field tests also showed that considerably different levels of VOCs were present in various parts of the swine building. 相似文献
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