A 'time zero' preservation study of twenty-eight trace metals, major ions and nutrients / by V. Cheam, N. Arafat and A.S.Y. Chau. : En13-5/86-158E-PDF
"The centralization of the Water Quality Branch (WQB) laboratories has involved longer time periods between sample collection and sample analysis. If the data generated by the consolidated laboratory are to be reliable, it is essential that the sample preservation techniques currently in use be thoroughly evaluated and modified where required. This study investigates in detail the true 'time zero' preservation, where the activities were planned and coordinated to minimize the time gap between sample collection and analysis. Twenty-eight key heavy metals, major ions and nutrients were so studied. It was shown that Ag, Ba, Cd, Cr, Co, Cu, Fe, Mn, Li, Sr,Ni, Pb, Zn, Na, K, Ca, Mg, hardness, S04, C1, F, alkalinity, DOC and SRP are stable up to 90 days from the actual sampling time. Ammonia, TKN and N03 & N02 are stable up to about two and a half weeks"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.849851&sl=1
| Ministère/Organisme | Canada. Environment Canada. National Water Research Institute (Canada) |
|---|---|
| Titre | A 'time zero' preservation study of twenty-eight trace metals, major ions and nutrients / by V. Cheam, N. Arafat and A.S.Y. Chau. |
| Titre de la série | NWRI contribution ; # 86-158 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | "March 1986". "Control No. AM307". Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references: p. 7. Includes management perspective and abstract in French. |
| Information sur la publication | Burlington, Ont. : Analytical Methods Division, National Water Research Institute, Canada Centre for Inland Waters, 1986. |
| Auteur / Contributeur | Cheam, V. Arafat, Nabil. Chau, A. S. Y. (Alfred Shun-Yuen), 1941- |
| Description | 7, [4] p. : ill. |
| Numéro de catalogue |
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| Descripteurs | Water quality |
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