A5066595548- Analytical chemistry methods development
- Heavy metals in environment
- Chemical Analysis and Environmental Impact
- Neonatal Health and Biochemistry
- Heavy Metals in Plants
- Radioactive contamination and transfer
- X-ray Spectroscopy and Fluorescence Analysis
- Metabolomics and Mass Spectrometry Studies
- Quality and Management Systems
- Pesticide Residue Analysis and Safety
- Heavy Metal Exposure and Toxicity
- Mass Spectrometry Techniques and Applications
- Analytical Chemistry and Chromatography
- Molecular Sensors and Ion Detection
- Nutritional Studies and Diet
- Electrochemical Analysis and Applications
- Thyroid Disorders and Treatments
- Mercury impact and mitigation studies
Abbott (United States)
2011-2025
Abbott Nutrition (United States)
2011-2019
The Horwitz equation models an empirically observed relationship between inter-laboratory relative standard deviation RSDR and analyte concentration expressed as a mass fraction. ratio (HorRat) is the of to corresponding calculated from equation. empirical acceptable range 0.5 2.0 for successful multi-laboratory method validation trial. This work examines data trials on food analyses conducted 2011-2017 trends in analytical precision applicability relevance model. Data 20 consisting 961...
AOAC Final Action Official MethodSM 2015.06 "Minerals and Trace Elements in Milk, Milk Products, Infant Formula Adult/Pediatric Nutritional Formula, ICP-MS Method" was collaboratively studied. Note that "milk, milk products" has now been added to the title of method because whole several dairy ingredients were successfully incorporated into collaborative study for purpose developing an International Organization Standardization/International Dairy Federation standard (ISO/DIS 21424;...
Inductively coupled plasma–mass spectrometric determination of iron and phosphorus in three vegetable oils (soybean, coconut, sunflower) was validated for the intermediate precision, trueness, linearity, quantitation limit. The overall precision (n = 5) analytes, which were above method's practical limit quantification, less than 2% relative standard deviation same as laboratory control, NIST-SRM-1849a. Trueness demonstrated with spike recoveries analytes all at quantification-level spiking....
A single-laboratory validation by inductively coupled plasma-mass spectrometry was developed for the determination total iodine (m/z 127) in infant formula and adult nutritional products. All samples were digested nitric acid using a closed vessel microwave oven system; Te 130) used as an internal standard. To prevent loss of iodine, ammonium hydroxide solution added to immediately after digestion. The method quantitation limit 0.3 ng/mL, but practical LOQ at 1.0 concentration which there...
An inductively coupled plasma/MS method was developed for the simultaneous determination of Cr, Se, and Mo in infant formula other nutritional products. All samples were digested using a closed vessel microwave oven system, together with Ni Te internal standards. The practical quantitation limits 0.4, 0.2, 0.4 ng/mL, respectively; dilution factors 250 powders 50 liquids. concentrations 10 products within specification limits; within-day day-to-day (6 independent days) precision values <5%...
After an assessment of data generated from a single-laboratory validation study published in the Journal AOAC INTERNATIONAL 95, 169-176 (2012), method for determining total level iodine infant formula and nutritional products was presented consideration adoption by during Annual Meeting held September 30-October 3, 2012 Las Vegas, NV. An Expert Review Panel on Infant Formula Adult Nutritionals concluded that met established standard performance requirements, approved as Official First...
Abstract A method for determination of 12 minerals and trace elements (Na, Mg, P, K, Ca, Cr, Mn, Fe, Cu, Zn, Se, Mo) in infant formula adult/ pediatric nutritional was developed evaluated a single-laboratory validation. Some additional reproducibility data were obtained from small interlaboratory study. The involves microwave digestion the sample followed by inductively coupled plasma/MS uses Ge Te as internal standards. is an extension Official MethodSM 2011.19 compared to AOAC Standard...
AOAC First Action Method 2011.19: Chromium, Selenium, and Molybdenum in Infant Formula Adult Nutritional Products, was collaboratively studied. This method uses microwave digestion of samples with nitric acid, hydrogen peroxide, internal standard followed by simultaneous detection the elements an inductively coupled plasma (ICP)/MS instrument equipped a collision/reaction cell. During this collaborative study, nine laboratories from four different countries, using seven models ICP/MS...
An inductively coupled plasma/MS method was developed for the simultaneous determination of Cr, Se, and Mo in infant formulas other nutritional products. All samples were digested using a closed vessel microwave oven system, together with Ni Te internal standards. The practical quantitation limits 0.4, 0.2, 0.4 ng/mL, respectively; dilution factors 250 powders 50 liquids. concentrations 10 products within specification limits, within-day day-to-day (6 independent days) precision values <5%...
Background: A fast and sensitive method for the simultaneous analysis of iodine bromine species in infant formula was developed using HPLC-inductively coupled plasma-MS (HPLC-ICP-MS). Method: To determine four halogen [iodide (I-), iodate (IO3-), bromide (Br-), bromate (BrO3-)] a milk-based Standard Reference Material commercially available products. Results: The were baseline separated less than 6.5 min an anion exchange resin column 5.0 mM NaH₂PO₄ / 15.0 Na₂SO₄ EDTA (pH 7.0) mobile phase....
A method was developed for the determination of As, Cd, Hg, and Pb in raw ingredients, nutritional products, infant formula using inductively coupled plasma mass spectrometry (ICP-MS). Three ingredients (acid casein, maltodextrin, skim milk powder) three standard reference materials [NIST 1548a (Typical Diet), NIST 1577c (Bovine Liver), SRM 1568b (Rice Flour)] obtained from National Institute Standards Technology were analyzed by two analysts ICP-MS instruments different laboratories. used...
A limited single-laboratory validation (SLV) was conducted in the authors' laboratory to investigate performance of AOAC Official MethodsSM 2011.19 Determination Chromium (Cr), Selenium (Se), and Molybdenum (Mo) Infant Formula Adult Nutritional Products by Inductively Coupled Plasma/Mass Spectrometry 2015.06 Minerals Trace Elements Adult/Pediatric at analyte levels below practical LOQs (PLOQs) already published for these Final Action Methods. This work needed verify that actual were minimum...