Modification of AOAC Official Method 998.12 to Add Filtration and/or Centrifugation: Interlaboratory Comparison Exercise
نویسندگان
چکیده
Karyne M. rogers National Isotope Centre, GNS Science, PO Box 31-312, Lower Hutt 5011, New Zealand Jo Marie CooK Florida Department of Agriculture and Consumer Services, 3125 Conner Blvd, Building #3, Tallahassee, FL 32399-1650 Dana Krueger Krueger Food Laboratories, Inc., 45 Manning Rd, Billerica, MA 01821 Klaus BeCKMann Quality Services International GmbH, Flughafendamm 9a, 28199 Bremen, Germany
منابع مشابه
Determination of nitrogen solubility in dilute pepsin hydrochloric acid solution of fishmeal: interlaboratory study.
A revised method to determine solubility of nitrogen in dilute pepsin, using 0.0002% pepsin in place of 0.2% in AOAC Official Method 971.09, was tested in 16 laboratories with 12 samples of fishmeal. Results were calculated according to 2 procedures: AOAC Official Method 971.09 and a method described in 1964 by researchers at the Torry Research Station (Aberdeen, Scotland), and generally referr...
متن کاملDetermination of Total Iodine in Infant Formula and Adult/ Pediatric Nutritional Formula by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Collaborative Study, Final Action 2012.15.
A collaborative study was conducted to determine total iodine in infant formula and adult/pediatric nutritional formula by inductively coupled plasma-MS (ICP-MS) using AOAC First Action Official Method(SM) 2012.15. The purpose of this study was to evaluate the method's intralaboratory and interlaboratory performance and submit the results to AOAC INTERNATIONAL for adoption as a Final Action Off...
متن کاملIsolation of light filth from ground oregano and ground marjoram: a modification using isopropanol as a defatting agent: in-house study.
A procedural modification of the AOAC Official Method for extracting light filth from ground oregano and ground marjoram was tested in an intralaboratory study. The modified method specifies isopropanol defatting, 975.49A(a), rather than chloroform-isopropanol defatting, 975.49A(b), followed by direct flotation as directed in AOAC Official Method, 975.49B(b). The modified method provided compar...
متن کاملMethod modification of the Legipid® Legionella fast detection test kit.
Legipid(®) Legionella Fast Detection is a test based on combined magnetic immunocapture and enzyme-immunoassay (CEIA) for the detection of Legionella in water. The test is based on the use of anti-Legionella antibodies immobilized on magnetic microspheres. Target microorganism is preconcentrated by filtration. Immunomagnetic analysis is applied on these preconcentrated water samples in a final ...
متن کاملEvaluation of analytical methods for the determination of moisture, crude protein, crude fat, and crude fiber in distillers dried grains with solubles.
A number of analytical methods for constituents commonly measured in distillers dried grains (DDG) are practiced in laboratories serving the agricultural sector. A large interlaboratory variability among results has been observed in the industry. Methods for moisture, crude fat, and crude fiber are empirical, thus part of this variability can be attributed to the use of different methods of ana...
متن کامل