00000cam 2200000zi 4500 9.948187 CaOODSP 20260310150822 m o d f cr |n||||||||| 250219e202602##oncd ob f00| 0 eng d 9780660758787 CaOODSP eng rda CaOODSP n-cn--- Fs70-5/2025-017E-PDF Page, F. H. (Frederick Henry), 1957- author. Considerations of bias and precision associated with ISE based measurements of sediment ‘free’ sulfide / F.H. Page and D.K.H. Wong. Ottawa : Canadian Science Advisory Secretariat (CSAS), February 2026. ©2026 1 online resource (v, 82 pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Research document, 1919-5044 ; 2025/017 Issued also in French under title: Considérations relatives au biais et à la précision associés aux mesures par EIS des sulfures « libres » dans les sédiments. Includes bibliographical references (pages 53-56). "This document utilizes literature and new data to examine the bias (systematic error), precision (non-systematic or random error; indicated by standard deviations and coefficients of variation (CV)) and total uncertainty or accuracy (includes bias and precision) associated with aspects of Ion Selective Electrode (ISE) measurements as applied to the determination of “free” sulfide in marine surficial sediment associated with aquaculture operations. The examination concludes that a careful and experienced analyst should be able to routinely achieve ISE sulfide measurements that have a total uncertainty of 10% or less when standard solutions, electrodes and samples are not stored, standard solutions are titrated and millivolt readings are made within 2 minutes of electrode insertion into a sample and electrodes are regularly checked and calibrated (at least once every 3 h)"--Abstract, page v. Aquaculture industry Environmental aspects Canada. Marine sediments Canada. Sulfides Canada Measurement. Electrodes, Ion selective. Canada. Department of Fisheries and Oceans. National Capital Region, issuing body. Canadian Science Advisory Secretariat, issuing body. Considérations relatives au biais et à la précision associés aux mesures par EIS des sulfures « libres » dans les sédiments / (CaOODSP)9.948188 Research document (Canadian Science Advisory Secretariat) 2025/017. (CaOODSP)9.507396 PDF 2.50 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs70-5/Fs70-5-2025-017-eng.pdf