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首页> 外文期刊>Jundishapur Journal of Natural Pharmaceutical Products >Determination of Pb and Cd in Garlic Herb (Allium sativum) Planted in Gilan and Khuzestan Provinces Using Graphite Furnace Atomic Absorption Spectrometry
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Determination of Pb and Cd in Garlic Herb (Allium sativum) Planted in Gilan and Khuzestan Provinces Using Graphite Furnace Atomic Absorption Spectrometry

机译：石墨炉原子吸收光谱法测定吉兰省和胡塞斯坦省大蒜中的铅和镉

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Background: Foods are enriched with variety of chemical elements. Some of these elements are necessary for human health. These elements enter in liquid, the cells and other organs, certain amount of these elements are essential for body organs to work properly. Objectives: This research was conducted to compare the level of lead and cadmium contamination in garlic species planted in Ramhormoz and Rasht and discuss about the source of this contaminations. Materials and Methods: Twenty composite samples were collected from each province, Khozestan (Ramhormoz) and Gilan (Rasht). Each sample was burned according to instruction reported in AOAC. Then the white residue was dissolved in diluted nitric acid then the Pb and Cd contents were determined using graphite furnace atomic absorption spectrometer at 217 and 228.8 nm, respectively. No Pb level was detected in garlic cultured in both cities. The mean concentration of cadmium was 0.40 and 0.58 mg/kg in garlics planted in Ramhormoz and Rasht, respectively. Results: Statistical analysis showed significant difference between mean concentration of cadmium in Rasht garlic and the permitted value (P 0.001). The cadmium level in Rasht garlic is much higher than the standard level. Conclusions: In order to test the reliability of the data obtained using this method, randomly selected samples were spiked with Pb and Cd standard solutions. The cadmium and lead recovery were reported 93.93 and 90.18 percent.
机译：背景：食品富含多种化学元素。其中一些元素对于人体健康是必需的。这些元素进入液体，细胞和其他器官，一定数量的这些元素对于人体器官的正常运转至关重要。目的：本研究旨在比较在Ramhormoz和Rasht种植的大蒜物种中铅和镉的污染水平，并讨论这种污染的来源。材料和方法：从每个省，霍兹斯坦（Ramhormoz）和吉兰（Rasht）收集了20个复合样品。每个样品都按照AOAC中的说明进行燃烧。然后将白色残留物溶于稀硝酸中，然后使用石墨炉原子吸收光谱仪分别在217和228.8 nm处测定Pb和Cd含量。在两个城市养殖的大蒜中均未检测到铅含量。在Ramhormoz和Rasht种植的大蒜中镉的平均浓度分别为0.40和0.58 mg / kg。结果：统计学分析显示，拉什特大蒜中镉的平均浓度与允许值之间存在显着差异（P <0.001）。拉什特大蒜中的镉含量远高于标准含量。结论：为了检验使用此方法获得的数据的可靠性，将随机选择的样品掺入Pb和Cd标准溶液。镉和铅的回收率分别为93.93％和90.18％。

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