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Uncertaintyevaluation of the determination of $\mathrm{{Cd}}$ , $\mathrm{{Pb}}$ and $\mathrm{{Cr}}$ in soil by microwavedigestion-inductively coupled plasma mass spectrometry
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Chun HU1, Yong-Xing SUN1, Kai-Ge XU1, Li-Qun CHANG2, Jing ZHANG3, *
Laboratory Testing | 2024, 2(10) : 82 - 86
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Laboratory Testing | 2024, 2(10): 82-86
Evaluation and Analysis
Uncertaintyevaluation of the determination of $\mathrm{{Cd}}$ , $\mathrm{{Pb}}$ and $\mathrm{{Cr}}$ in soil by microwavedigestion-inductively coupled plasma mass spectrometry
Full
Chun HU1, Yong-Xing SUN1, Kai-Ge XU1, Li-Qun CHANG2, Jing ZHANG3, *
Affiliations
  • 1 The Analysis and Test Center of Ningxia North Minzu University Yinchuan 750020 China
  • 2 Ningxia Agricultural Institute of Survey and Design Yinchuan 750002 China
  • 3 Quality Standards and Testing Institute of Agricultural Technology Yinchuan 750002 China
Outline
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Objective To evaluate the uncertainty of determination oftotal cadmium (Cd), lead (Pb) and chromium (Cr) in soil by microwavedigestion and inductively coupled plasma mass spectrometry (ICP-MS).Methods To ensure the accuracy and reliability of the detection results,the uncertainty of total cadmium (Cd), lead (Pb) and chromium (Cr) insoil was determined by microwave digestion and inductively coupledplasma mass spectrometry (ICP-MS) and according to JJF1059.1-2012Evalution and Expression of Uncertainty in Measurement the syntheticuncertainty was calculated and the extended uncertainty was obtained.Results The main sources of uncertainty were the standard curvepreparation the repeatability measurement of samples and the standardcurve fitting the contribution rates to the uncertainty of $\mathrm{{Cd}},\mathrm{{Pb}}$ and Cr were50.4%~60.3%, 18.7%~26.1% and 12.1%~20.4%. The influence of sampleweighing and resolution volume for the uncertainty was small and thecontribution rate was between 1.5%~2%, which could be ignored.Conclusion The effective measures to control uncertainty were putforward, which ensured the reliability of the experimental data andprovided the reference for the accurate representation of the heavymetal content in soil

uncertainty  /  inductively coupled plasma mass spectrometry  /  microwave digestion  /  soil
Chun HU, Yong-Xing SUN, Kai-Ge XU, Li-Qun CHANG, Jing ZHANG. Uncertaintyevaluation of the determination of $\mathrm{{Cd}}$ , $\mathrm{{Pb}}$ and $\mathrm{{Cr}}$ in soil by microwavedigestion-inductively coupled plasma mass spectrometry[J]. Laboratory Testing, 2024 , 2 (10) : 82 -86 .
  • Science and Technology Innovation Guidance Fund Project of NingXia Academy of Agriculture and Forestry Sciences(NKYG-24-13)
Year 2024 volume 2 Issue 10
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  • Online Date:2025-07-29
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Science and Technology Innovation Guidance Fund Project of NingXia Academy of Agriculture and Forestry Sciences(NKYG-24-13)
Affiliations
    1 The Analysis and Test Center of Ningxia North Minzu University Yinchuan 750020 China
    2 Ningxia Agricultural Institute of Survey and Design Yinchuan 750002 China
    3 Quality Standards and Testing Institute of Agricultural Technology Yinchuan 750002 China

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*ZHANG Jing, Master, Assistant Researcher, Quality Standards and Testing Institute of Agricultural Technology, Yinchuan 750002, China. E-mail:
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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