000
| 02480cam 2200409zi 4500 |
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001 | 9.878917 |
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003 | CaOODSP |
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005 | 20221107165355 |
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006 | m o d f |
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007 | cr bn||||||||| |
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008 | 190904t19731973onc ob f000 0 eng d |
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040 | |aCaOODSP|beng|erda|cCaOODSP |
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043 | |an-cn--- |
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086 | 1 |aEn36-508/26E-PDF|zEn36-508/26 |
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100 | 1 |aWales, R. W., |eauthor. |
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245 | 10|aInterlaboratory quality control study no. 5 : |bchromium, iron, molybdenum and vanadium / |cR.W. Wales and D.J. McGirr. |
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264 | 1|aBurlington, Ontario : |bInland Waters Directorate, Canada Centre for Inland Waters, |c1973. |
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264 | 4|c©1973 |
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300 | |a1 online resource (v, 6 pages). |
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336 | |atext|btxt|2rdacontent |
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337 | |acomputer|bc|2rdamedia |
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338 | |aonline resource|bcr|2rdacarrier |
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490 | 1 |aReport series ; |vno. 26 |
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500 | |aPage iv blank and unnumbered in original print edition and omitted in this copy. |
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500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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504 | |aIncludes bibliographical references (page 5). |
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520 | |a"Samples containing known amounts of chromium, iron, molybdenum and vanadium were distributed to thirteen laboratories to be analyzed by the laboratories' usual methods. The majority of laboratories determined the metals by atomic absorption; in addition, iron was determined colorimetrically for comparison. Only a few participants were able to analyze all four metals, and in the case of molybdenum and vanadium the small number of results received made it difficult to come to firm conclusions about the reliability of the method. The precision for chromium was better than in a previous study. The results obtained for iron by atomic absorption with solvent extraction were good, while the colorimetric method was intermediate in precision and sensitivity between solvent extraction and direct aspiration using atomic absorption"--Summary, page v. |
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530 | |aIssued also in print format. |
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692 | 07|2gccst|aWater |
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692 | 07|2gccst|aWater quality |
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692 | 07|2gccst|aAnalysis |
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700 | 1 |aMcGirr, D. J., |eauthor. |
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710 | 1 |aCanada. |bEnvironment Canada. |
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710 | 1 |aCanada. |bInland Waters Directorate. |
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830 | #0|aReport series (Canada. Inland Waters Directorate)|vno. 26.|w(CaOODSP)9.862410 |
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856 | 40|qPDF|s475 KB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en36-508/En36-508-26-eng.pdf |
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