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The effect of cadmium chloride on growth and metabolism was tested in Saccharomyces cerevisiae and Rhodotorula rubra.The uptake of cadmium in both yeast strains is the same, but Saccharomyces cells are much more sensitive to cadmium than Rhodotorula cells. In both yeast strains the effect of cadmium on protein synthesis and on transport of glucose or adenine through membranes is very low, the effect on RNA- and ribosome synthesis very high. 相似文献
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Tolga Elbir Nizamettin Mangir Melik Kara Sedef Simsir Tuba Eren Seda Ozdemir 《Atmospheric environment (Oxford, England : 1994)》2010,44(4):441-454
A decision support system has been developed for urban air quality management in the metropolitan area of Istanbul. The system is based on CALMET/CALPUFF dispersion modeling system, digital maps, and related databases to estimate the emissions and spatial distribution of air pollutants with the help of a GIS software. The system estimates ambient air pollution levels at high temporal and spatial resolutions and enables mapping of emissions and air quality levels. Mapping and scenario results can be compared with air quality limits. Impact assessment of air pollution abatement measures can also be carried out. 相似文献
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Nizamettin Özdoğan Fatih Kapukıran Gülşen Mutluoğlu Dotse Selali Chormey Sezgin Bakırdere 《Environmental monitoring and assessment》2018,190(10):607
This study reports the optimization of a binary dispersive liquid-liquid microextraction method for the determination of iprodione, procymidone, and chlorflurenol by gas chromatography mass spectrometry. The study was aimed at using two extraction solvents to increase the extraction efficiency of all analytes. The binary solvents recorded results higher than the mono-solvents. After examining the effects of main experimental parameters and their interactions by analysis of variance, 200 μL of binary mixture (dichloromethane and 1,2-dichloroethane), 2.5 mL of ethanol, and 15 s vortex were obtained as optimum parameters. The detection and quantification limits calculated for the analytes were found to be between 0.30–1.6 and 1.0–5.3 ng/mL, respectively. Enhancement in detection power calculated as a ratio of the binary extraction detection limit to the detection limit of direct GC-MS analysis was 105-, 214-, and 233-fold for chlorflurenol, iprodione, and procymidone, respectively. In order to check the accuracy of the developed method, recovery study was performed. Water sampled from a lake and two wastewater samples from treatment facilities were spiked at two concentrations, and the percent recovery calculated for the samples ranged between 87 and 116%. These results confirmed the suitability of the method to real samples for accurate determination of the analytes at trace levels. 相似文献
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Chormey Dotse Selali Erarpat Sezin Zaman Buse Tuğba Özdoğan Nizamettin Yağmuroğlu Ozan Bakırdere Sezgin 《Environmental Chemistry Letters》2023,21(3):1863-1880
Environmental Chemistry Letters - The occurrence of contaminants in the environment requires very sensitive analytical techniques for their determination. For that, analytical techniques have been... 相似文献
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