Refinement of Methodology for Cadmium Determination in Soil Micro-Arthropod Tissues

doi:10.1016/S1002-0160(17)60345-X

	Refinement of Methodology for Cadmium Determination in Soil Micro-Arthropod Tissues
	Zhu Dong 1,2; Ke Xin 3; Wu Longhua 1; Huang Yujuan 1; Peter Christie 1; Luo Yongming4
发表期刊	PEDOSPHERE
ISSN	1002-0160
	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
研究领域	Soil Science
DOI	10.1016/S1002-0160(17)60345-X
产权排序	[Zhu Dong; Wu Longhua; Huang Yujuan; Peter Christie] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Zhu Dong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Ke Xin] Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China; [Luo Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
作者部门	海岸带环境过程实验室
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.
文章类型	Article
资助机构	National High Technology Research and Development Program of China(2012AA101402-2) ; National Natural Science Foundation of China(41271264 ; 41325003)
收录类别	SCI
语种	英语
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
研究领域[WOS]	Agriculture
WOS记录号	WOS:000405059600010
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/22553
专题	中国科学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.