Analytical methods and procedures in this compendium have undergone rigorous scientific and systematic scrutiny to determine the performance characteristics for the intended analiyical application and fitness for pupose. AOAC INTERNATIONAL members and other volunteers have reviewed the analytical results and determined that particular method is appropriate for the analyte and matrix stated, provided the analysis is conducted by a competent analyst as written.

The Official Methods of AnalysisSM, 19th Edition (print), is now available for purchase. The print edition is a 2-volume set (hard cover bound books; not a subscription). Following are highlights in the new edition: * 31 Methods adopted as First Action * 16 SMPRs developed and approved by AOAC stakeholder panels * 7 Methods with major modifications * 10 Methods with minor editorial revisions * 7 New appendices on guidelines for SMPRs, voluntary consensus standards, probability of detection, validation of microbiological methods for foods and environmental surfaces, validation of dietary supplements and botanicals, single-laboratory validation of infant formula and adult nutritionals, and validation of food allergens * A new subchapter on General Screening Methods (Chapter 17, subchapter 15) that includes screening methods for bacteria * Updated information on program components of the Official MethodsSM process (found in the front matter)

Thoroughly updated to accommodate recent research and state-of-the-art technologies impacting the field, Volume 2: Residues and Other Food Component Analysis of this celebrated 3 volume reference compiles modern methods for the detection of residues in foods from pesticides, herbicides, antibacterials, food packaging, and other sources. Volume 2 evaluates methods for: establishing the presence of mycotoxins and phycotoxins identifying growth promoters and residual antibacterials tracking residues left by fungicides and herbicides discerning carbamate and urea pesticide residues confirming residual amounts of organochlorine and organophosphate pesticides detecting dioxin, polychlorobiphenyl (PCB), and dioxin-like PCB residues ascertaining n-nitroso compounds and polycyclic aromatic hydrocarbons tracing metal contaminants in foodstuffs

Statistical methods, sampling, and errors in analysis; Preparation of samples for analysis, storage and preservation of samples; expression of results; Moisture content and total solids; Ash content and ashing procedures; Extraction methods and separation processes; Densimetric methods; Refractometric methods; Polarimetry and saccharimetry; Colorimetry and spectrophotometry; Potentiometric and related methods; pH and buffer capacity; Viscosity, consistency, and texture. Conductivity measurements and gas analysis; Acidimetry; Alcoholometry; Monosaccharides; Oligosaccharides; Starch and dextrin; Pectin; The determination of total organic nitrogen; The analytical chemistry of the proteins, peptides, and amino acids; Tannins and related phenolics; Enzyme assay; Vitamin assay; Chemical preservatives and artificial sweeteners; Chemical indices of incipient decomposition and identity.