Method Development for Direct Multielement Quantification by LA-ICP-MS in Food Samples

2018 ◽  
Vol 67 (3) ◽  
pp. 935-942 ◽  
Author(s):  
Yatai Li ◽  
Wei Guo ◽  
Zhaochu Hu ◽  
Lanlan Jin ◽  
Shenghong Hu ◽  
...  
Keyword(s):  
Method Development ◽  
Food Samples ◽  
Icp Ms

scholarly journals Comparison of Serum, Plasma, and Liver Zinc Measurements by AAS, ICP-OES, and ICP-MS in Diverse Laboratory Settings

2021 ◽  
Author(s):  
Andrew G. Hall ◽  
Janet C. King ◽  
Christine M. McDonald
Keyword(s):  
Inductively Coupled Plasma ◽  
Method Development ◽  
Geometric Mean ◽  
Zinc Content ◽  
Plasma Zinc ◽  
Icp Oes ◽  
Percent Error ◽  
Accuracy And Precision ◽  
Icp Ms ◽  
Standardized Method

AbstractProgress improving zinc nutrition globally is slowed by limited understanding of population zinc status. This challenge is compounded when small differences in measurement can bias the determination of zinc deficiency rates. Our objective was to evaluate zinc analytical accuracy and precision among different instrument types and sample matrices using a standardized method. Participating laboratories analyzed zinc content of plasma, serum, liver samples, and controls, using a standardized method based on current practice. Instrument calibration and drift were evaluated using a zinc standard. Accuracy was evaluated by percent error vs. reference, and precision by coefficient of variation (CV). Seven laboratories in 4 countries running 9 instruments completed the exercise: 4 atomic absorbance spectrometers (AAS), 1 inductively coupled plasma optical emission spectrometer (ICP-OES), and 4 ICP mass spectrometers (ICP-MS). Calibration differed between individual instruments up to 18.9% (p < 0.001). Geometric mean (95% CI) percent error was 3.5% (2.3%, 5.2%) and CV was 2.1% (1.7%, 2.5%) overall. There were no significant differences in percent error or CV among instrument types (p = 0.91, p = 0.15, respectively). Among sample matrices, serum and plasma zinc measures had the highest CV: 4.8% (3.0%, 7.7%) and 3.9% (2.9%, 5.4%), respectively (p < 0.05). When using standardized materials and methods, similar zinc concentration values, accuracy, and precision were achieved using AAS, ICP-OES, or ICP-MS. However, method development is needed for improvement in serum and plasma zinc measurement precision. Differences in calibration among instruments demonstrate a need for harmonization among laboratories.

Siloxane compounds in biogas from manure and mixed organic waste: Method development and speciation analysis with GC-ICP-MS

Talanta ◽  
2020 ◽  
Vol 208 ◽  
pp. 120398 ◽  
Author(s):  
Debora Foppiano ◽  
Mohamed Tarik ◽  
Jörg Schneebeli ◽  
Adelaide Calbry-Muzyka ◽  
Serge Biollaz ◽  
...  
Keyword(s):  
Organic Waste ◽  
Method Development ◽  
Speciation Analysis ◽  
Icp Ms

scholarly journals Development of a method for the simultaneous detection of Cr(iii) and Cr(vi) in exhaled breath condensate samples using μLC-ICP-MS

2016 ◽  
Vol 31 (4) ◽  
pp. 924-933 ◽  
Author(s):  
Elizabeth Leese ◽  
Jackie Morton ◽  
Philip H. E. Gardiner ◽  
Vikki A. Carolan
Keyword(s):  
Simultaneous Determination ◽  
Method Development ◽  
Exhaled Breath Condensate ◽  
Simultaneous Detection ◽  
Exhaled Breath ◽  
Development Study ◽  
Icp Ms ◽  
Breath Condensate

A method development study describing the first simultaneous determination of Cr(III) and Cr(VI) in an exhaled breath condensate sample.

Ultrasound-Assisted Ionic Liquid-Dispersive Liquid–Liquid of Curcumin in Food Samples Microextraction and Its Spectrophotometric Determination

2019 ◽  
Vol 102 (1) ◽  
pp. 217-221 ◽  
Author(s):  
Yunus Emre Unsal ◽  
Mustafa Tuzen ◽  
Mustafa Soylak
Keyword(s):  
Ionic Liquid ◽  
Method Development ◽  
Low Cost ◽  
Cost Effective ◽  
Enrichment Factors ◽  
Food Samples ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
Development Methods

Abstract Background: A rapid and new ultrasound-assisted ionic liquid-dispersive liquid–liquid microextraction method (UA-IL-DLLME) was presented for the determination of curcumin by spectrophotometry. Objective: To determine trace levels of curcumin in food samples by using green and low-cost method development. Methods: 1-Butyl-3-methylimidazolium hexafluorophosphate was used to extract curcumin from sample solutions with the aid of sonication. Optimum extraction efficiency was determined by examining extraction solvents, pH, centrifugation speed, time, sonication period, and temperature. The influences of diverse ions on the recovery of curcumin were examined. The concentration of curcumin in the final solution was measured by spectrophotometer at 425 nm. Results: The enrichment factor achieved was 167. The LOD and the RSD were 0.51 μg/L and 4.3%, respectively. The presented method was performed to detect curcumin in 20 food samples. Conclusions: The presented UA-IL-DLLME method is simple, low in cost, environmentally friendly, rapid, and sensitive and requires minimal use of toxic organic solvents. Highlights: A microextraction method was applied to increase sensitivity. Higher enrichment factors and lower detection limits were observed. The proposed technique is easy, cost-effective, accurate, and precise.

Influence of laboratory homogenization procedures on trace element content of food samples: an ICP-MS study on soft and durum wheat

2001 ◽  
Vol 18 (9) ◽  
pp. 778-787 ◽  
Author(s):  
Francesco Cubadda ◽  
Massimo Baldini ◽  
Marina Carcea ◽  
Luigi Alberto Pasqui ◽  
Andrea Raggi ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Trace Element ◽  
Trace Element Content ◽  
Food Samples ◽  
Element Content ◽  
Icp Ms

METHOD DEVELOPMENT AND DETERMINATION OF PROPIONIC ACID IN FOODS IN HUE CITY

2019 ◽  
pp. 13-18
Author(s):  
Viet Khan Nguyen ◽  
Thi Hoai Nguyen
Keyword(s):  
Key Words ◽  
Propionic Acid ◽  
Method Development ◽  
Food Samples ◽  
Hplc Method ◽  
Optimal Process ◽  
Food Preservative ◽  
System Suitability ◽  
Precision And Accuracy

Background: Propionic acid (PRO) is increasingly being used as a food preservative on markets, today. However, excessive use of this chemical will harm the health of consumers. Objectives: (1) To develope an HPLC method for quantification of PRO in foods and (2) To determinate PRO content in some foods in Hue city. Materials and methods: Breads, cakes, noodles in Hue city. After attaining the optimal process, the method was validated and applied to assess the content of PRO in these materials. Results: The method was validated parameters including: system suitability, specificity, linearity, precision and accuracy. Conclusions: The method development canbe aplied to determine PRO in some foods. PRO contents (using as a preservative) in all foods surveyed in Hue city were under the permitted level of PRO in foods according to Ministry of Health (Vietnam). Key words: propionic acid, food samples, HPLC, content, derivatization

Arsenic speciation in seafood by LC-ICP-MS/MS: method development and influence of culinary treatment

2017 ◽  
Vol 32 (8) ◽  
pp. 1490-1499 ◽  
Author(s):  
Lucas Schmidt ◽  
Julio A. Landero ◽  
Rafael F. Santos ◽  
Marcia F. Mesko ◽  
Paola A. Mello ◽  
...  
Keyword(s):  
Method Development ◽  
Arsenic Speciation ◽  
Icp Ms

Arsenic speciation in seafood after several culinary treatments was performed and AsB, As(iii), DMA, MMA and As(v) species were determined by LC-ICP-MS/MS.

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