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043 |an-cn---
0861 |aFs70-5/2025-017E-PDF
1001 |aPage, F. H. |q(Frederick Henry), |d1957- |eauthor.
24510|aConsiderations of bias and precision associated with ISE based measurements of sediment ‘free’ sulfide / |bF.H. Page and D.K.H. Wong.
264 1|aOttawa : |bCanadian Science Advisory Secretariat (CSAS), |cFebruary 2026.
264 4|c©2026
300 |a1 online resource (v, 82 pages) : |bcharts.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aResearch document, |x1919-5044 ; |v2025/017
500 |aIssued also in French under title: Considérations relatives au biais et à la précision associés aux mesures par EIS des sulfures « libres » dans les sédiments.
504 |aIncludes bibliographical references (pages 53-56).
520 |a"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.
650 0|aAquaculture industry|xEnvironmental aspects|zCanada.
650 0|aMarine sediments|zCanada.
650 0|aSulfides|zCanada|xMeasurement.
650 0|aElectrodes, Ion selective.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bNational Capital Region, |eissuing body.
7102 |aCanadian Science Advisory Secretariat, |eissuing body.
77508|tConsidérations relatives au biais et à la précision associés aux mesures par EIS des sulfures « libres » dans les sédiments / |w(CaOODSP)9.948188
830#0|aResearch document (Canadian Science Advisory Secretariat)|v2025/017.|w(CaOODSP)9.507396
85640|qPDF|s2.50 MB|uhttps://publications.gc.ca/collections/collection_2026/mpo-dfo/fs70-5/Fs70-5-2025-017-eng.pdf