00000nam 2200000zi 4500 9.877523 CaOODSP 20241203113651 m o d f cr ||||||||||| 190806s1990 oncd ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/90-151E-PDF Lee, H. B., author. Chemical derivatization analysis of pesticide residues. XI. An improved method for the determination and confirmation of acidic herbicides in water / by Hing-Biu Lee, Thomas E. Peart, John C. Carron and Hung Tse. Improved method for the determination and confirmation of acidic herbicides in water Burlington, Ontario : National Water Research Institute = Institut national de recherche sur les eaux, [1990] 1 online resource (iv, 23 pages, 3 unnumbered pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 90-151 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 15-16). "In response to requests made by Water Quality Branch, Western and Northern Region, and the National Water Quality Laboratory, an improved method was developed for the determination of 13 acidic herbicides in water. The major source of interference in the existing procedure was identified and a cleanup step was included to alleviate the problem. The new method significantly decreases the number of false identifications and thereby reduces the workload of the mass spectrometer for confirmation purposes. It also increases the cost effectiveness by extending the applicability of the method to more herbicides"--Management perspective, page i. Includes abstract and management perspective in English and French. gccst Pesticides gccst Herbicides gccst Water management Peart, Thomas E., author. Carron, John C., author. Tse, Hung, author. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 90-151. (CaOODSP)9.844121 PDF 2.21 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-151-eng.pdf