Proficiency testing for total mercury in oyster with a metrologically traceable reference value from isotope dilution mass spectrometry: implications on laboratory practices using mercury analyzers Hwijin KimEuijin HwangKyoung-Seok Lee General Paper 02 April 2019 Pages: 253 - 261
Quantitative scores for binary qualitative proficiency testing Guy BeavisJulie WilsonMark Sykes General Paper 23 April 2019 Pages: 263 - 269
Valid machine learning algorithms for multiparameter methods Steffen UhligBertrand ColsonPetra Gowik General Paper 24 April 2019 Pages: 271 - 279
Alternative designs for the assessment of homogeneity: use of characterisation data Thomas P. J. LinsingerThomas Bacquart Practitioner's Report Open access 24 April 2019 Pages: 281 - 287
Fifteen years of proficiency testing of total petrol hydrocarbon determination in soil: a story of success Roland BeckerAndreas SauerWolfram Bremser Practitioner's Report 24 April 2019 Pages: 289 - 296
Preparation of matrix reference material for quality assurance and control of pesticides analysis in olive oil Ibrahim F. TahounRanda N. YamaniAdel B. Shehata Practitioner's Report 24 April 2019 Pages: 297 - 304
Verifying and assigning own target values and ranges for internal quality control Flávia MartinelloMilan SkitekAleš Jerin Practitioner's Report 24 April 2019 Pages: 305 - 312
Report on the 41st meeting of ISO/REMCO Angelique BothaJohn P. HammondStéphane Sauvage Meeting Reports 06 May 2019 Pages: 313 - 315