简介:《QUALITY CONTROL PROCEDURES FOR PESTICIDE RESIDUES ANALYSIS》
Accreditation...........................................................................................................3
Sampling, transport, processing and简介:《QUALITY CONTROL PROCEDURES FOR PESTICIDE RESIDUES ANALYSIS》
Accreditation...........................................................................................................3
Sampling, transport, processing and storage of samples....................................3
Pesticide standards, calibration solutions, etc.....................................................4
Preparation, use and storage of working standards...........................................5
Extraction and concentration................................................................................6
Extract concentration and dilution to volume...................................................6
Contamination and interference...........................................................................6
Contamination...................................................................................................7
Analytical calibration, representative analytes, matrix effects and chromatographic integration.................................................................................7
Calibration.........................................................................................................8
Matrix effects and matrix-matched calibration...............................................10
Standard Addition............................................................................................10
Effects of pesticide mixtures on calibration....................................................10
Calibration for pesticides that are mixtures of isomers, etc............................11
Chromatographic integration...........................................................................11
Analytical methods and analytical performance...............................................11
Method validation............................................................................................11
Methods for determination of fat or dry weight content.................................12
Routine recovery determination......................................................................12
Proficiency testing and analysis of reference materials....................................13
Confirmation of results........................................................................................14
Principles of confirmation...............................................................................14
Confirmation by mass spectrometry (MS)......................................................15
Confirmation by an independent laboratory....................................................17
Reporting of results..............................................................................................17
Expression of results........................................................................................17
Calculation of results.......................................................................................17
Rounding of data.............................................................................................17
Qualifying results with uncertainty data..........................................................18
Interpretation of results....................................................................................19详细>