scholarly journals Determination of mercury species in seafood by liquid chrom tography - inductively coupled plasma mass spectrometry (LC-ICP-MS)

2019 ◽  
Vol 2 (4) ◽  
pp. 33-41
Author(s):  
Hieu Pham Cong ◽  
Chien Dinh Viet ◽  
Ri Nguyen Van ◽  
Anh Huong Nguyen Thi ◽  
Hong Hao Le Thi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Limit Of Detection ◽  
Mercury Species ◽  
Standard Samples ◽  
Inductively Coupled ◽  
Performance Requirements ◽  
Icp Ms ◽  
Limit Of Quantitation ◽  
Plasma Mass Spectrometry

Liquid chromatography hyphenated with inductively coupled plasma mass spectrometry (LC­ICP­MS) was investigated to simultaneously determine three mercury species (mercury methyl mercury and ethyl mercury) in seafood samples. Important parameters such as organic solvents, flow rate of the mobile phase, 2­mercaptoethanol concentration, extraction time and temperature were optimized. The method was validated in term of the limit of detection, limit of quantitation, repeatability, and recovery meeting the AOAC performance requirements. The method has also been validated based on the analysis of certified standard samples DORM­4, then applied to determine three mercury species in 30 seafood samples. Results showed that the content of mercury species was below the maximum limit according to the QCVN 8­2 : 2011/BYT.

scholarly journals Determination of Arsenic, Cadmium, Mercury, and Lead by Inductively Coupled Plasma/Mass Spectrometry in Foods after Pressure Digestion: NMKL Interlaboratory Study

2007 ◽  
Vol 90 (3) ◽  
pp. 844-856 ◽  
Author(s):  
Kaare Julshamn ◽  
Amund Maage ◽  
Hilde Skaar Norli ◽  
Karl H Grobecker ◽  
Lars Jorhem ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Method Performance ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Relative Standard ◽  
Limit Of Quantitation ◽  
Plasma Mass Spectrometry ◽  
Standard Deviations

Abstract Thirteen laboratories participated in an interlaboratory method performance (collaborative) study on a method for the determination of arsenic, cadmium, mercury, and lead by inductively coupled plasma/mass spectrometry (ICP/MS) after pressure digestion including the microwave heating technique. Prior to the study, the laboratories were able to practice on samples with defined element levels (pretrial test). The method was tested on a total of 7 foodstuffs: carrot puree, fish muscle, mushroom, graham flour, simulated diet, scampi, and mussel powder. The elemental concentrations in mg/kg dry matter (dm) ranged from 0.0621.4 for As, 0.0328.3 for Cd, 0.040.6 for Hg, and 0.012.4 for Pb. The materials used in the study were presented to the participants as blind duplicates, and the participants were asked to perform single determinations on each sample. The repeatability relative standard deviations (RSDr) for As ranged from 3.8 to 24%, for Cd from 2.6 to 6.9%, for Hg from 4.8 to 8.3%, and for Pb from 2.9 to 27%. The reproducibility relative standard deviations (RSDR) for As ranged from 9.0 to 28%, for Cd from 2.8 to 18%, for Hg from 9.9 to 24%, and for Pb from 8.0 to 50%. The HorRat values were less than 1.5 for all test samples, except for the determination of Pb in wheat flour at a level close to the limit of quantitation (0.01 mg/kg dm). The study showed that the ICP/MS method is satisfactory as a standard method for elemental determinations in foodstuffs.

scholarly journals Simultaneous Analysis of Cadmium, Lead, Mercury, and Arsenic Content in Foodstuffs of Animal Origin by Inductively Coupled Plasma/Mass Spectrometry after Closed Vessel Microwave Digestion: Method Validation

2005 ◽  
Vol 88 (6) ◽  
pp. 1811-1821 ◽  
Author(s):  
Laurent Noël ◽  
Vincent Dufailly ◽  
Nadège Lemahieu ◽  
Christelle Vastel ◽  
Thierry Guérin
Keyword(s):  
Mass Spectrometry ◽  
Method Validation ◽  
Inductively Coupled Plasma ◽  
Limit Of Detection ◽  
Microwave Digestion ◽  
Animal Origin ◽  
Closed Vessel ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Abstract A method validation of the total analysis of cadmium (Cd), lead (Pb), arsenic (As), and mercury (Hg) in foodstuffs by inductively coupled plasma/mass spectrometry (ICP/MS) after closed vessel microwave digestion is presented. Due to the lack of reference method for ICP/MS techniques in food and, based on the project of the European Committee of Normalization (CEN/TC 275/WG 10), the Agence Française de Normalisation (AFNOR) guidelines NF V03–110 were used for the evaluation of this method based on 2 steps, sample preparation and multielement detection. Several criteria considered as compulsory (linearity, specificity, precision under repeatability conditions, and trueness) have been estimated and discussed, in addition to intermediate precision reproducibility, the limit of detection, and the limit of quantification. Furthermore, a comparison with in-house methods using electrothermal atomic absorption was performed using an external proficiency testing scheme and food samples. The results indicated that this method could be used in the laboratory for the routine determination of these 4 cumulative toxic metals in foodstuffs with acceptable analytical performance.

Determination of Heavy Metals in Rhizomes of Alpinia galanga by Inductively Coupled Plasma Mass Spectrometry

2011 ◽  
Vol 486 ◽  
pp. 143-146 ◽  
Author(s):  
Chutima Limmatvapirat ◽  
Thawatchai Phaechamud ◽  
Juree Charoenteeraboon
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Limit Of Detection ◽  
Acid Digestion ◽  
Alpinia Galanga ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Galangal (Alpinia galanga(Linn.) Swartz.) is a popular spice in Thailand. Heavy metals, deriving from environmental pollution, might be contaminated in galangal rhizomes. Inductively coupled plasma mass spectrometry (ICP-MS) was a new and fast technique for ultratrace elemental analysis. The aim of this study was to validate a method for the determination of aluminium (Al), arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) in galangal rhizomes according to the European standards (EU) using nitric acid digestion followed by ICP-MS. The parameters evaluated in the validation were recovery, repeatability and within-laboratory reproducibility, limit of detection (LOD), and limit of quantification (LOQ). This method was used to analyze the concentrations of 11 heavy metals in 15 samples of galangal rhizomes collected in Nakhon Pathom province. The metal concentrations varied considerably in the different sample sources. The concentration of heavy metals in the galangal samples arranged in increasing order was Hg < Cd < As < Cr < Pb < Ni < Cu < Zn < Fe < Mn < Al. An acid digestion and ICP-MS method was applicable to determination of 11 heavy metals in galangal rhizomes, based on the recovery analysis, cost, and time taken

scholarly journals Determination of Metals Content in Wine Samples by Inductively Coupled Plasma-Mass Spectrometry

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2886 ◽  
Author(s):  
Justyna Płotka-Wasylka ◽  
Marcin Frankowski ◽  
Vasil Simeonov ◽  
Żaneta Polkowska ◽  
Jacek Namieśnik
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Metal Content ◽  
Limit Of Detection ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Potentially Toxic Metals ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Knowledge about the metal content of wine is very important, for many reasons. Depending on the element, its quantity varies in wine from ng/L to mg/L. Despite the fact that metals are not directly connected to the taste and aroma of the wine, their content should be determined and controlled, because excess is undesirable, and in some cases prohibited, due to potential toxicity. Several analytical procedures for metal determination are applied. However, due to sensitivity, low limit of detection and speed of analysis, inductively coupled plasma-mass spectrometry (ICP-MS) is one of the most frequently used techniques. The aim of this study was to reveal specific relationships between the wine samples or between the chemical variables in order to classify the wines according to their metal content by application of chemometric analysis. For metals content determination, two techniques, ICP-MS and inductively coupled plasma-optical emission spectrometry (ICP-OES), were applied. Data obtained showed that none of the wine samples surpassed the toxic levels reported for metals in the literature, thus, these wines appeared to be safe as regards the risk associated with the potentially toxic metals intake. However, specific correlations between metals and specific aspects of the wines themselves have been found.

scholarly journals INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY IN CONTEMPORARY HYGIENIC EXAMINATIONS OF ATMOSPHERIC AIR

2019 ◽  
Vol 98 (4) ◽  
pp. 461-467
Author(s):  
Tatyana S. Ulanova ◽  
G. A. Veikhman ◽  
E. V. Stenno ◽  
A. V. Nedoshitova ◽  
M. V. Volkova
Keyword(s):  
Mass Spectrometry ◽  
Sample Preparation ◽  
Inductively Coupled Plasma ◽  
Limit Of Detection ◽  
Chemical Elements ◽  
Reaction Cell ◽  
Inductively Coupled ◽  
Limit Of Quantitation ◽  
Plasma Mass Spectrometry ◽  
Methodological Guidelines

Introduction. The optimal conditions for taking of samples, sample preparation and selective quantitative measurement from one sample of 19 chemical elements, such as lithium, magnesium, aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, selenium, strontium, cadmium, tungsten, thallium, lead in the atmosphere using inductively coupled plasma mass spectrometry method are proved and recommended for the practical application. Material and methods. The settings of a quadrupole inductively coupled plasma mass spectrometer are described. The optimal scale for sample preparation to eliminate the “matrix” effect is proposed. The device operation mode with a collision/reaction cell for interference suppression for overlays, as well as the choice of the internal comparison element is proved. Limit of detection (LOD) and limit of quantitation (LOQ) are calculated for each element. Results. The determination technique of 19 priority elements in the atmosphere using ISP-MS (Methodological guidelines 4.1. 3481-17) is developed. Accordingly, to obtained results the level of 19 elements in the atmosphere appeared to be at the level of reference concentrations (RfC) and much lower than the daily mean of threshold limit value for all elements with a measurement accuracy of 14 to 21%. Conclusion. The technique developed (Methodological guidelines 4.1. 3481-17) has been used when studying samples of the atmosphere in different territories of the Russian Federation.

Single Particle Inductively Coupled Plasma Mass Spectrometry: Investigating Nonlinear Response Observed in Pulse Counting Mode and Extending the Linear Dynamic Range by Compensating for Dead Time Related Count Losses on a Microsecond Timescale

2019 ◽  
Author(s):  
Ingo Strenge ◽  
Carsten Engelhard
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Nonlinear Response ◽  
Dynamic Range ◽  
Dead Time ◽  
Inorganic Nanoparticles ◽  
Linear Dynamic Range ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

<p>The article demonstrates the importance of using a suitable approach to compensate for dead time relate count losses (a certain measurement artefact) whenever short, but potentially strong transient signals are to be analysed using inductively coupled plasma mass spectrometry (ICP-MS). Findings strongly support the theory that inadequate time resolution, and therefore insufficient compensation for these count losses, is one of the main reasons for size underestimation observed when analysing inorganic nanoparticles using ICP-MS, a topic still controversially discussed.</p>

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