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>Assessment of selenium compounds use in limitation of petroleum impact on antioxidant capacity in sandy soil / Ocena wykorzystania zwi?zków selenu w ograniczeniu oddzia?ywania substancji ropopochodnych na pojemno?? antyoksydacyjn? gleby lekkiej
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Assessment of selenium compounds use in limitation of petroleum impact on antioxidant capacity in sandy soil / Ocena wykorzystania zwi?zków selenu w ograniczeniu oddzia?ywania substancji ropopochodnych na pojemno?? antyoksydacyjn? gleby lekkiej
The aim of this study is to assess the selenium (on two oxidation states +IV and +VI) effect on antioxidant capacity in light soil contaminated with gasoline and diesel fuel. The soil used in experiment is characterised by granulometric composition of loamy sand with organic carbon content of 8.7 g·kg?1. Different combinations of gasoline or diesel fuel in dosage 1 or 5%, and H2SeO3 and H2SeO4 in dosage 0.05 mmol Se·kg?1 were added into soil. In the period of 35 days at weekly intervals, antioxidant capacity of the soil in methanol and alkali extracts was determined. Soil contamination with petroleum caused the decrease in antioxidant capacity. Selenium application increased in antioxidant capacity in extracts. In the case of uncontaminated soil, this effect was higher for selenium on the oxidation state +VI, and in soil that contained petroleum for selenium on the oxidation state +IV.
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机译：这项研究的目的是评估硒（在两个氧化态+ IV和+ VI上）对汽油和柴油污染的轻质土壤中抗氧化能力的影响。实验用土壤的特征在于，壤土的粒度组成为有机碳含量为8.7 g·kg ？1 。剂量为1或5％的汽油或柴油的不同组合，以及H 2 SeO 3 和H 2 SeO 4 的sub>添加到土壤中。在每周35天的时间内，测定土壤在甲醇和碱提取物中的抗氧化能力。土壤被石油污染导致抗氧化能力下降。硒的添加提高了提取物中的抗氧化能力。在未污染的土壤中，硒对氧化态+ VI具有较高的影响，在含石油的硒对氧化态+ IV具有较高的影响。
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