Official Methods and

D. Firestone, ed.. Official Methods and Kecommended Practices of the Mmerican Oil Chemists Society, Champaign, lU., 1991, Method Cc9a-48. 

AOCS, Official Methods and Recommended Practices of the American Oil Chemists Society, 5th edn., American Oil Chemists Society, AOCS Press, Champaign, 1998. 

These are official methods, and are the standards used by academia and industry and the basis of their data. 

The adoption of NMR methods as a standard way to measure SFC is largely due to the work of the American Oil Chemists Society (AOCS). Over the past decades they have conducted a series of interlaboratory collaborative trials to revise and improve methodologies and have published their recommendations as Official Methods and Recommended Practices of the AOCS (Firestone, 1998). The methods described here were based on methods Cd 16b-93 and Cd 16-81 of this book, and readers are encouraged to consult the original text. The important advantages of NMR for this application are that it can rapidly and nondestructively measure the number of hydrogen nuclei in the solid or liquid phase and thus the ratio of the amounts of each phase. 

Firestone, D. (ed.) 1998. Official Methods and Recommended Practices of the AOCS. American Oi I Chemists Society, Champaign, 111. 

Accurate, precise, sensitive, and rapid analytical determinations are as essential in food science and technology as in chemistry, biochemistry, and other physical and biological sciences. In many cases, the same methodologies are used. How does one, especially a young scientist, select the best methods to use A review of original publications in a given field indicates that some methods are cited repeatedly by many noted researchers and analysts, but with some modifications adapting them to the specific material analyzed. Official analytical methods have been adopted by some professional societies, such as the Official Methods of Analysis (Association of Official Analytical Chemists), Official Methods and Recommendation Practices (American Oil Chemists Society), and Official Methods of Analysis (American Association of Cereal Chemists). 

JN Thompson. Problems of official methods and new techniques for analysis of foods and feeds for vitamin A. J Assoc Off Anal Chem 69 727-738, 1986. 

Official methods and commercial kits used for immunoassays... 

Florisil Mg03Si Polar adsorbent Florisil is a magnesium-substituted silica with a highly polar surface typically has a relatively large particle size (approximately 200 pm), and therefore high flow rates are possible even with viscous samples used with many official methods, and in cases where the Lewis acidity of alumina would be problematic... 

The Technical Services function of AOCS establishes, revises, and annually updates AOCS Methods, the Official Methods and Recommenced Practices of the American Oil Chemists Society22 for fats, oils, and soap technology Spanish AOCS Methods, a Spanish translation of the more commonly used AOCS Methods and Physical and Chemical Characteristics of Oils, Fats and Waxes. Leaders of the methods development committees coordinate closely with AOAC International (formerly the Association of Official Analytical Chemists). AOCS Methods are recognized as Official Methods in US FDA activities and when litigation becomes necessary in industry trade. Additionally, the Technical Services function operates a Laboratory Proficiency Program (formerly the Smalley Check Sample Program) and oversees distribution and statistical analysis of 30 different series of basic laboratory quality assur-ance/quality control test samples. Certification as AOCS Approved Chemists, or as AOCS... 

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