PMID- 12723928 OWN - NLM STAT- MEDLINE DCOM- 20030714 LR - 20190729 IS - 1060-3271 (Print) IS - 1060-3271 (Linking) VI - 86 IP - 2 DP - 2003 Mar-Apr TI - Determination of metals in composite diet samples by inductively coupled plasma-mass spectrometry. PG - 439-47 AB - A study was conducted to evaluate the applicability of inductively coupled plasma-mass spectrometry (ICP-MS) techniques for determination of metals in composite diets. Aluminum, cadmium, chromium, copper, lead, manganese, nickel, vanadium, and zinc were determined by this method. Atmospheric pressure microwave digestion was used to solubilize analytes in homogenized composite diet samples, and this procedure was followed by ICP-MS analysis. Recovery of certified elements from standard reference materials ranged from 92 to 119% with relative standard deviations (RSDs) of 0.4-1.9%. Recovery of elements from fortified composite diet samples ranged from 75 to 129% with RSDs of 0-11.3%. Limits of detection ranged from 1 to 1700 ng/g; high values were due to significant amounts of certain elements naturally present in composite diets. Results of this study demonstrate that low-resolution quadrupole-based ICP-MS provides precise and accurate measurements of the elements tested in composite diet samples. FAU - Melnyk, Lisa Jo AU - Melnyk LJ AD - U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr, Cincinnati, OH 45268, USA. melnyk.lisa@epa.gov FAU - Morgan, Jeffrey N AU - Morgan JN FAU - Fernando, Reshan AU - Fernando R FAU - Pellizzari, Edo D AU - Pellizzari ED FAU - Akinbo, Olujide AU - Akinbo O LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - England TA - J AOAC Int JT - Journal of AOAC International JID - 9215446 RN - 0 (Indicators and Reagents) RN - 0 (Metals) SB - IM MH - Animals MH - Beverages/analysis MH - Calibration MH - Cattle MH - *Food Analysis MH - Hydrolysis MH - Indicators and Reagents MH - Liver/chemistry MH - Mass Spectrometry MH - Metals/*analysis MH - Reference Standards EDAT- 2003/05/02 05:00 MHDA- 2003/07/15 05:00 CRDT- 2003/05/02 05:00 PHST- 2003/05/02 05:00 [pubmed] PHST- 2003/07/15 05:00 [medline] PHST- 2003/05/02 05:00 [entrez] PST - ppublish SO - J AOAC Int. 2003 Mar-Apr;86(2):439-47.