نتایج جستجو برای: pb and no3
تعداد نتایج: 16836124 فیلتر نتایج به سال:
A method has been developed for direct determination of lead in wine by graphite furnace atomic absorption spectrometry (GFAAS) with Zeeman-effect background correction. The thermal behaviour of Pb during pyrolysis and atomisation stages was investigated without matrix modifier and in the presence of Pd(NO(3))(2), Pd(NO(3))(2) + Mg(NO(3))(2) × 6H(2)O, and NH(4)H(2)PO(4) + Mg(NO(3))(2) × 6H(2)O ...
in desert reclamation strainer plants can be used for improvement and decrease pollution of soil and water. this technology can be used to remove both inorganic and organic contaminants in soil. in this study, one year old acacia victoriae seedlings were exposed to pb (no3)2 in 5 different concentrations; 0, 50, 250, 500 and 1000 mg pb l-1 for 45 days in two growing seasons. subsequently, the h...
Plants adapt to adverse conditions through a series of physiological, cellular, and molecular processes, culminating in stress tolerance. However, little is known about the associated regulatory mechanisms at the epigenetic level in maize under lead (Pb) stress. Therefore, in this study, we aimed to compare DNA methylation profiles during the dynamic development of maize roots following Pb trea...
Airborne particulate matter (PM) pollution often occurs in the wintertime northern China, posing a potential threat to human health. To date, there are limited studies about metals and inorganic ions link source apportionments health risk assessments different size-segregated PM samples. In this study, our samples were collected by high-volume air sampler from 26 December 2018 11 January 2019 h...
After the demolition of concrete structures, it is expected to recycle the whole of the demolished concrete. As of now, however, it is difficult to recycle the fine powders generated in the processes of demolition of concrete and manufacture of recycled aggregate because these powders may contain heavy metals exceeding the soil environmental standard, and such powders are disposed finally. It i...
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