| 报告题名: | Intercomparison 1529: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn |
| 作者: | Escudero, Carlos
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| 出版者: | Norsk institutt for vannforskning
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| 出版年: | 2015
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| 发表日期: | 2015
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| 国家: | 挪威
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| 语种: | 英语
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| 英文关键词: | VDP::Matematikk og naturvitenskap: 400
; VDP::Mathematics and natural scienses: 400
; Kvalitetskontroll / Quality Control
; Overvåking / Monitoring
; Sammenligning / Intercomparison
; Sur nedbør / Acid Rain
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| 中文主题词: | 湖泊
; PH
; 导电性
; 离子
; PH值
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| 主题词: | LAKES
; PH
; CONDUCTIVITY
; IONS
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| 英文摘要: | 81 laboratories were invited to participate in the current intercomparison. Of these, 40 from 19 different countries accepted the invitation and 39 of them submitted results to the Organization. Two sample sets were prepared: one for the determination of major ions and one for heavy metals. Based on the general target accuracy of 20 % or the special accuracy limit for pH and conductivity ( 0,2 pH units and 10 % respectively), 88 % of the overall results were considered acceptable. This is slightly better than last year, but in line with previous editions. The best results were reported for the analytical variables: chloride, sulphate, calcium, magnesium, sodium, potassium, cadmium, copper and nickel, with acceptance rate of 90% or higher.
For pH, only 64 percent of the reported results fulfilled the acceptance criteria. Harmonization of the analytical methods used and of the practical procedures followed, may be the most important way to improve the comparability for these parameters.
Participants may have observed higher concentrations in the sample set AB if compared to previous intercalibrations. This sample set has been spiked with NaCl, KNO3, NaCl and CaCl2 and MgSO4 salts. The purpose was to compare results for freshwaters with higher content of salts than the naturally occurring in Norwegian lakes and rivers |
| URL: | https://brage.bibsys.no/xmlui/bitstream/handle/11250/1898154/6910-2015_200dpi.pdf?sequence=3&isAllowed=y
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/29157
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 6910-2015_200dpi.pdf（1985KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Escudero, Carlos. Intercomparison 1529: pH, Conductivity, Alkalinity, NO3-N, Cl, SO4, Ca, Mg, Na, K, TOC, Al, Fe, Mn, Cd, Pb, Cu, Ni, and Zn. 2015-01-01.
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