Preservation of organics : part II : stability of chlorophenols in preserved natural water samples / by H.B. Lee, Y.D. Stokker, N. Arafat and A.S.Y. Chau. : En13-5/87-123E-PDF
"This study monitored the stability of 20 chlorophenols (CP) including the monochlorophenols in spiked water samples from five regions. Before the full-scale study was implemented, a pilot study was designed to evaluate the efficiency of three chemicals, namely, chloroform, copper sulfate and sulfuric acid, for the preservation of CP in water. Using Lake Ontario water as a typical sample, results indicated that both copper sulfate and sulfuric acid were effective preservatives. However, sulfuric acid was later chosen in the full-scale study since it was also used to preserve water samples for trace metal and acid herbicide analyses. The stability of CP in the spiked and sulfuric acid-preserved water samples was monitored by repetitive analysis of the samples immediately after spiking, as well as after 3, 6, 10, and 15 weeks of storage at 4°C in the dark. Under such conditions, the results in the full-scale study indicated no evidence of degradation for any CP in all samples over the 15-week study period"--Abstract, page ii.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.870086&sl=1
| Ministère/Organisme | Canada. Environment Canada. National Water Research Institute (Canada). Research and Applications Branch. Canada Centre for Inland Waters. |
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| Titre | Preservation of organics : part II : stability of chlorophenols in preserved natural water samples / by H.B. Lee, Y.D. Stokker, N. Arafat and A.S.Y. Chau. |
| Variante du titre | Stability of chlorophenols in preserved natural water samples |
| Titre de la série | NWRI contribution ; 87-123 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Title from cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. Includes a management perspective and abstract in English and French. |
| Information sur la publication | Burlington, Ontario, Canada : National Water Research Institute, Research and Applications Branch, Canada Centre for Inland Waters, June 1987. |
| Auteur / Contributeur | Lee, H. B., author. Stokker, Yvonne D., author. Arafat, Nabil, author. Chau, A. S. Y. (Alfred Shun-Yuen), 1941- author. |
| Description | 1 online resource (iv, 8 pages, 14 unnumbered pages). |
| Numéro de catalogue |
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| Descripteurs | Water management Chemicals Samples |