scholarly journals Uncertainty Evaluation for Determination of Gold in High-Purity Gold by LA-ICP-MS

2021 ◽  
Author(s):  
Boling Huang ◽  
Xuan Wang ◽  
Tingting Yang ◽  
Jiani Shen ◽  
Qingzheng Ma ◽  
...  
Keyword(s):  
High Purity ◽  
Analytical Method ◽  
Inductively Coupled Plasma ◽  
Rapid Development ◽  
High Sensitivity ◽  
Gold Content ◽  
Healthy Development ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is a new analytical method developed in recent years. The LA-ICP-MS is a quasi-non-destructive multi-elemental analytical method with low detection limits, high sensitivity and specificity. In this study, this method is applied to detecting high-purity gold. The micro-region information of high-purity gold can be analysed, and the original position information of the sample can be obtained in real time and accurately. In this study, the content of impurity elements in high-purity gold were determined by LA-ICP-MS, and the accuracy and reliability of the test results were improved by calculating the uncertainty. According to the test and analysis, the gold content of the high purity gold sample is (999.995 ± 0.003) ‰, so the gold content of the sample is more than 999.99 ‰. The result shows that the LA-ICP-MS has the advantages of fast, accurate and green, which is conducive to the rapid development of jewellery industry technology, and puts forward guiding suggestions for the production development direction, and promotes the green and healthy development of jewellery industry.

scholarly journals Measurement of CeO2 Nanoparticles in Natural Waters Using a High Sensitivity, Single Particle ICP-MS

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5516
Author(s):  
Ibrahim Jreije ◽  
Agil Azimzada ◽  
Madjid Hadioui ◽  
Kevin J. Wilkinson
Keyword(s):  
Single Particle ◽  
Inductively Coupled Plasma ◽  
Natural Waters ◽  
High Sensitivity ◽  
Au Nps ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Mean Diameter ◽  
Plasma Mass Spectrometry ◽  
St Lawrence River

As the production and use of cerium oxide nanoparticles (CeO2 NPs) increases, so does the concern of the scientific community over their release into the environment. Single particle inductively coupled plasma mass spectrometry is emerging as one of the best techniques for NP detection and quantification; however, it is often limited by high size detection limits (SDL). To that end, a high sensitivity sector field ICP-MS (SF-ICP-MS) with microsecond dwell times (50 µs) was used to lower the SDL of CeO2 NPs to below 4.0 nm. Ag and Au NPs were also analyzed for reference. SF-ICP-MS was then used to detect CeO2 NPs in a Montreal rainwater at a concentration of (2.2 ± 0.1) × 108 L−1 with a mean diameter of 10.8 ± 0.2 nm; and in a St. Lawrence River water at a concentration of ((1.6 ± 0.3) × 109 L−1) with a higher mean diameter (21.9 ± 0.8 nm). SF-ICP-MS and single particle time of flight ICP-MS on Ce and La indicated that 36% of the Ce-containing NPs detected in Montreal rainwater were engineered Ce NPs.

Using Inductively Coupled Plasma Mass Spectrometry to Assess Essential and Performance-Enhancing Metals in the Urine of Racehorses

2020 ◽  
Vol 44 (5) ◽  
pp. 490-498
Author(s):  
Abdul Khader Karakka Kal ◽  
Zubair Perwad ◽  
Tajudheen K Karatt ◽  
Jahfar Nalakath ◽  
Michael Subhahar
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Performance Enhancement ◽  
Research Work ◽  
High Sensitivity ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
And Performance ◽  
Sport Events

Abstract Recently, an increased tendency to use various metals has been observed in the sports competition fields. Many of these metals and their organic complexes reportedly have good pharmacologic, therapeutic and performance-enhancement uses; they are banned or recommended as controlled medications in competitive sports. The objective of this research was to determine the concentration of pharmacologically relevant metals in urine samples collected from racehorses at various sport events, develop a method and assess the concentrations of above metals using inductively coupled plasma mass spectrometry (ICP-MS). Seven alkali–alkaline earth metals (lithium, sodium, potassium, magnesium, calcium, strontium and barium) and six heavy metals (chromium, cobalt, copper, zinc, arsenic and selenium) were studied in detail. To compare and confirm the concentrations of these metals, the screening was carried out on the basis of region and sex of the animal. ICP-MS provides extremely high sensitivity that enables the determination of the metals at very low concentration from complex biological matrices. From the research, it is clear that irrespective of sex and region the concentration of metal is very high in some samples, might be accidental or intentional doping to improve sporting performances. This research work is of significant importance in setting threshold values for screening metals in race day samples in order to avoid potential harmful effects on athletes and the depth of malpractices, it can bring to sports.

scholarly journals Determination of Micronutrients in Feed Products by Inductively Coupled Plasma Mass Spectrometry

1998 ◽  
Vol 81 (5) ◽  
pp. 923-930
Author(s):  
James S Mcguire ◽  
Douglas A Hite
Keyword(s):  
Nitric Acid ◽  
High Purity ◽  
Inductively Coupled Plasma ◽  
Element Analysis ◽  
Inductively Coupled ◽  
Ultra High Purity ◽  
Feed Control ◽  
Icp Ms ◽  
Nitric Acid Digestion ◽  
Plasma Mass Spectrometry

Abstract Micronutrients are widely used in feed products and are very important to the health and productivity of farm and domestic animals. It is imperative to have analytical capabilities for rapid and accurate results. By using a simple nitric acid digestion of the feed coupled with inductively coupled plasmamass spectrometry (ICP/MS), rapid and accurate results can be obtained. ICP/MS has many advantages over classical wet chemical methods, atomic absorption methods, and other ICP methods: speed of analysis, reduced standards preparation, reduced waste stream, and qualitative scan capabilities. One gram portions of feed products were placed into 250 mL volumetric flasks and digested with 30 mL concentrated high-purity nitric acid for about 20 min. They were then brought to volume with ultra-high-purity water, shaken, and filtered. Ten milliliter portions were taken, and 0.5 mL internal standards were added. Standards were made up in concentrations to agree with the expected range of the desired element. Analysis of check samples from the Association of American Feed Control Officials shows that this method is comparable with other methods of choice

scholarly journals Quantitative aspects of inductively coupled plasma mass spectrometry

2016 ◽  
Vol 374 (2079) ◽  
pp. 20150369 ◽  
Author(s):  
Ewa Bulska ◽  
Barbara Wagner
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Environmental Science ◽  
Certified Reference Materials ◽  
Accurate Determination ◽  
High Sensitivity ◽  
Good Precision ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Accurate determination of elements in various kinds of samples is essential for many areas, including environmental science, medicine, as well as industry. Inductively coupled plasma mass spectrometry (ICP-MS) is a powerful tool enabling multi-elemental analysis of numerous matrices with high sensitivity and good precision. Various calibration approaches can be used to perform accurate quantitative measurements by ICP-MS. They include the use of pure standards, matrix-matched standards, or relevant certified reference materials, assuring traceability of the reported results. This review critically evaluates the advantages and limitations of different calibration approaches, which are used in quantitative analyses by ICP-MS. Examples of such analyses are provided. This article is part of the themed issue ‘Quantitative mass spectrometry’.

Sign in / Sign up

Export Citation Format

Share Document