Refinement of Methodology for Cadmium Determination in Soil Micro-Arthropod Tissues
文献类型：期刊论文
| 作者 | Zhu Dong1,2; Ke Xin3; Wu Longhua1; Huang Yujuan1; Peter Christie1; Luo Yongming4
|
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 27期号:3页码:491-501 |
| 关键词 | digestion defecation Folsomia candida micro-samples predatory mite sample pre-treatment ultrasonic cleaning |
| ISSN号 | 1002-0160 |
| 英文摘要 | Highly precise and reliable determination of heavy metals in soil micro-arthropod tissues remains a challenge because of the small size of the animals and their typical low abundance in metal-contaminated agricultural soils. The present study sought to develop a method for cadmium (Cd) determination in soil micro-arthropods by optimizing the sample digestion procedure, reducing sample weight, modifying sample pre-treatment and validating the methodology with field samples. The optimized digestion conditions comprised a sample mass of 50-150 mu g, digestion reagent of nitric acid:hydrogen peroxide (3:1), digestion temperature of 105 degrees C, digestion period of 3 h and digestion volume of 30 mu L. Defecation of the standatd Collembola Folsomia candida (92 h) and the indigenous Collembola Onychiurus yodai (42 h) and ultrasonic cleaning of F. candida increased the accuracy of Cd determination. The recovery of Cd using the refined procedure was 98.9% and the limits of detection and quantification were 0.002 and 0.008 mu g L-1, respectively. The within-batch precision values were < 3%. The Cd concentrations in the tissues of the Collembola Isotoma sp. collected from a range of metal-contaminated fields determined by the improved method were consistent with the Cd concentrations in the field soils. The results indicate that the optimized method can be used for more accurate or reliable determination of Cd concentrations in soil micro-arthropod tissues. |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | ORTHOGONAL ARRAY DESIGN ; ATOMIC-ABSORPTION SPECTROPHOTOMETRY ; ULTRASONIC ACID DIGESTION ; FOLSOMIA-CANDIDA ; BIOLOGICAL SAMPLES ; HEAVY-METALS ; MICROWAVE DIGESTION ; NATURAL SOILS ; COLLEMBOLA ; INVERTEBRATES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000405059600010 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/22553]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu Dong,Ke Xin,Wu Longhua,et al. Refinement of Methodology for Cadmium Determination in Soil Micro-Arthropod Tissues[J]. PEDOSPHERE,2017,27(3):491-501. |
| APA | Zhu Dong,Ke Xin,Wu Longhua,Huang Yujuan,Peter Christie,&Luo Yongming.(2017).Refinement of Methodology for Cadmium Determination in Soil Micro-Arthropod Tissues.PEDOSPHERE,27(3),491-501. |
| MLA | Zhu Dong,et al."Refinement of Methodology for Cadmium Determination in Soil Micro-Arthropod Tissues".PEDOSPHERE 27.3(2017):491-501. |
入库方式： OAI收割
来源：烟台海岸带研究所
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