Distribution and Migration Patterns of Lead in Atmosphere-tea System by Isotopic Tracing Method
With low concentration of stable lead isotope as the tracer, using inductively coupled plasma mass spectrometry （ICP-MS）, the lead absorption of tea plants as well as the distribution and migration pattern of lead in plants under different pH environments and spraying introduction of lead sources we...
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| Published in | Plant Diseases and Pests(植物病虫害研究：英文版) Vol. 8; no. 4; pp. 37 - 39 |
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| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | English |
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Cranston
Wu Chu (USA-China) Science and Culture Media Corporation
01.08.2017
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| Abstract | With low concentration of stable lead isotope as the tracer, using inductively coupled plasma mass spectrometry （ICP-MS）, the lead absorption of tea plants as well as the distribution and migration pattern of lead in plants under different pH environments and spraying introduction of lead sources were studied through pot trial. The results showed that tea plants were very sensitive to atmospheric lead source pollution; atmospheric lead source pollution had a tendency of moving up to the top （bud） ; low pH conditions enhanced lead absorption of plants and promoted upward migration of lead in plants. The experimental method is closer to the actual situation that plants are exposed to low concentration pollution, and could distinguish experimentally introduced lead source from environmentally introduced lead source. |
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| AbstractList | With low concentration of stable lead isotope as the tracer, using inductively coupled plasma mass spectrometry （ICP-MS）, the lead absorption of tea plants as well as the distribution and migration pattern of lead in plants under different pH environments and spraying introduction of lead sources were studied through pot trial. The results showed that tea plants were very sensitive to atmospheric lead source pollution; atmospheric lead source pollution had a tendency of moving up to the top （bud） ; low pH conditions enhanced lead absorption of plants and promoted upward migration of lead in plants. The experimental method is closer to the actual situation that plants are exposed to low concentration pollution, and could distinguish experimentally introduced lead source from environmentally introduced lead source. By labeling pollution sources such as chemical fertilizers, pesticides, waste gas, waste water, etc. , isotopic tracing method directly track and study the absorption, distribution and residue of heavy metals in environment and organisms , providing an effective research method for agricultural environmental science, especially migration and distribution patterns of heavy metal pollutants^1 Eimers MC et al, ^ studied the factors influencing plant absorption and utilization of cadmium in soil using 1MCd, luCd and ll4Cd; S. A. Watmough et al. 1 mL of 50 mg/L TL was added as the internal standard for mass discrimination correction, and the solution was set to the constant volume of 50 mL with ultrapure water. 1.3 Major reagents and instruments The instruments used in the test include Agilent HP4500 inductively coupled plasma mass spectrometry (the United States) ; Shanghai Xinyi MK-III fiber pressure controlled closed microwave digestion system; Milli-Q ultrapure water device; and Agate mortar. In isotope determination, Acquisition mode was replaced by isotope rate; Dwell time was substituted by 206Pb; 10 ms, 208Pb; 5 ms; Integration time was changed into 206Pb; 5 ms, 208Pb; 2.5 ms; the rest parameters and quantitative model were consistent. 1.4 Calculation Among the four natural isotopes of lead, the abundance of 208Pb was the highest, and the enriched isotope in SRM982 standard material was 206Pb. [...]in the isotope tracing, "Pb/^Pb had the largest changes, which could be used to accurately characterize the lead absorption of tea plants after introduction of tracer. According to the formula (2) , the artificially introduced isotope lead content at each part of two kinds of tea plants were calculated (Fig. 1 and Fig. 2). |
| Author | Huang Huabin Yang Miaofeng Lin Ying Ke Nafen Xiao Yueming Zhuang Zhixia Wang Xiaoru |
| AuthorAffiliation | Department of Science and Technology for Inspection, Xiamen Huaxia University, Xiamen 361024, China; Fisheries Research Institute of Fujian, Xiamen361013, China |
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| DocumentTitleAlternate | Distribution and Migration Patterns of Lead in Atmosphere-tea System by Isotopic Tracing Method |
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| Notes | Stable isotopic tracing; ICP-MS ; Migration; Lead With low concentration of stable lead isotope as the tracer, using inductively coupled plasma mass spectrometry （ICP-MS）, the lead absorption of tea plants as well as the distribution and migration pattern of lead in plants under different pH environments and spraying introduction of lead sources were studied through pot trial. The results showed that tea plants were very sensitive to atmospheric lead source pollution; atmospheric lead source pollution had a tendency of moving up to the top （bud） ; low pH conditions enhanced lead absorption of plants and promoted upward migration of lead in plants. The experimental method is closer to the actual situation that plants are exposed to low concentration pollution, and could distinguish experimentally introduced lead source from environmentally introduced lead source. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
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| PublicationTitle | Plant Diseases and Pests(植物病虫害研究：英文版) |
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| Snippet | With low concentration of stable lead isotope as the tracer, using inductively coupled plasma mass spectrometry （ICP-MS）, the lead absorption of tea plants as... By labeling pollution sources such as chemical fertilizers, pesticides, waste gas, waste water, etc. , isotopic tracing method directly track and study the... |
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| SubjectTerms | Atmosphere Heavy metals ICP-MS Lead Leaves Mass spectrometry Migration Scientific imaging Tea 同位素示踪法 大气 电感耦合等离子体质谱法 系统 茶树 迁移规律 铅污染 |
| Title | Distribution and Migration Patterns of Lead in Atmosphere-tea System by Isotopic Tracing Method |
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