| 000 | 02418nab a22004217a 4500 | ||
|---|---|---|---|
| 001 | 67821 | ||
| 003 | MX-TxCIM | ||
| 005 | 20250304141908.0 | ||
| 008 | 240813s1969 -us|||p|op||| 00| 0 eng d | ||
| 022 | _a1060-3271 | ||
| 022 | _a1944-7922 (Online) | ||
| 024 | 8 | _ahttps://doi.org/10.1093/jaoac/52.5.900 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 100 | 1 |
_aJones Jr., J.B. _934450 |
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| 245 | 1 | 0 | _aElemental analyses of plant leaf tissue by several laboratories |
| 260 |
_aUnited Kingdom : _bOxford University Press, _c1969. |
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| 500 | _aPeer review | ||
| 520 | _aEighteen laboratories reported the analyses of seven plant tissue referee samples for the elements N, P, K, Ca, Mg, Al, B, Cu, Fe, Mn, Na, and Zn. Agreement among the laboratories was good for the elements N, P, Mn, Mg, K, and Ca. Poor agreement was obtained for the elements B and Cu with only fair agreement for Na, Al, Zn, and Fe. The results from this exchange of samples were not too different from those obtained by others in similar studies. Although the probable sources for the variances were not investigated, failure to specify drying and ashing technique, as well as the lack of plant tissue standards from a reliable source, may have contributed to discrepant analyses in some laboratories. Also, analysts need to carefully evaluate calibration and operating techniques, particularly when emission spectrographs are used to perform plant tissue analyses. Exchange of plant tissue referee samples between laboratories can be of assistance to the analyst when plant tissue standards are not available. | ||
| 546 | _aText in English | ||
| 650 | 7 |
_aLeaf tissue analysis _2AGROVOC _94866 |
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| 650 | 7 |
_aElements _2AGROVOC _936138 |
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| 650 | 7 |
_aLaboratories _2AGROVOC _932598 |
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| 650 | 7 |
_aNitrogen _2AGROVOC _92912 |
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| 650 | 7 |
_aPhosphorus _2AGROVOC _95314 |
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| 650 | 7 |
_aPotassium _2AGROVOC _95225 |
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| 650 | 7 |
_aCalcium _2AGROVOC _912750 |
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| 650 | 7 |
_aMagnesium _2AGROVOC _915625 |
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| 650 | 7 |
_aAluminium _2AGROVOC _915626 |
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| 650 | 7 |
_aBoron _2AGROVOC _98928 |
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| 650 | 7 |
_aCopper _2AGROVOC _98927 |
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| 650 | 7 |
_aIron _2AGROVOC _93544 |
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| 650 | 7 |
_aManganese _2AGROVOC _98926 |
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| 650 | 7 |
_aSodium _2AGROVOC _912991 |
|
| 650 | 7 |
_aZinc _2AGROVOC _91315 |
|
| 773 | 0 |
_dUnited Kingdom : Oxford University Press, 1969. _gv. 52, no. 5, p. 900–903 _tJournal of Association of Official Analytical Chemists _wG446038 _x1060-3271 |
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| 942 |
_2ddc _cJA _n0 |
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| 999 |
_c67821 _d67813 |
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