Determination of chromium, iron and selenium in foodstuffs of animal origin by collision cell technology, inductively coupled plasma mass spectrometry (ICP-MS), after closed vessel microwave digestion

Dufailly, Vincent; Noël, Laurent; Guérin, Thierry

doi:10.1016/j.aca.2006.02.046

Cited by 52 publications

(42 citation statements)

References 29 publications

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“…During the determination of trace elements, including chromium in foodstuffs of animal origin, satisfactory results were reported using H 2 and He gases in collision cell technology (CCT) mode. 30 Other studies employing CCT systems demonstrated the effectiveness of H 2 and He gases, in terms of reduction of the argon-based interferences and limits of detection. 31,32 Reactive gases such as NH 3 and CH 4 were tested on DRC mode, for quantification of chromium in food, biological fluids and environmental samples.…”

Section: Selection Of Drc-icp-ms Conditionsmentioning

confidence: 99%

Speciation of chromium in cow's milk by solid-phase extraction/dynamic reaction cell inductively coupled plasma mass spectrometry (DRC-ICP-MS)

Ambushe

McCrindle

2009

J. Anal. At. Spectrom.

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Chromium can act either as an essential micronutrient or a chemical carcinogen, depending on its oxidation state. Of the two most stable chromium oxidation states, Cr(VI) is a known carcinogen, while Cr(III) is an essential element. Determination of total Cr cannot therefore be used to evaluate food safety of dairy products, as speciation is required for accurate assessment of potential toxicity. In this study, total Cr was determined by DRC-ICP-MS after mineralisation of freeze-dried milk samples. Chromabond NH 2 ion-exchange columns were used to separate Cr(VI) from Cr(III). During the separation process, Cr(VI) was selectively adsorbed onto the Chromabond NH 2 column. The retained Cr(VI) was subsequently eluted with two column volumes of 2 M HNO 3 and diluted to a final volume of 10 mL. After separation, the Cr(VI) was quantified by DRC-ICP-MS, using O 2 as the reactive gas, to alleviate polyatomic ion interference. An O 2 gas flow rate of 0.85 ml/min and a high-pass rejection parameter q (Rpq) ¼ 0.5, provided the best compromise signal-to-noise ratio. The method was validated through determining the recovery in milk samples spiked with Cr(VI). The recoveries were quantitative and ranged from 96.4 to 99.2%. A whole milk powder reference material (NIST SRM 8435) was used to evaluate the accuracy of the total Cr quantification method. The observed value showed concordance with the certified value. The limits of detection (LOD) were 0.091 and 0.085 mg/L for total Cr and Cr(VI), respectively. These findings are important for the determination of maximum residue levels (MRLs) of Cr(VI) in dairy products.

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Section: Selection Of Drc-icp-ms Conditionsmentioning

confidence: 99%

Speciation of chromium in cow's milk by solid-phase extraction/dynamic reaction cell inductively coupled plasma mass spectrometry (DRC-ICP-MS)

Ambushe

McCrindle

2009

J. Anal. At. Spectrom.

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“…Se in the blood or liver was determined by ICP-MS assay. 34 Moreover, liver samples were homogenized in ice-cold saline and centrifuged at 12,000× g at 4°C for 15 minutes. The resulting supernatants and the plasma samples were used to determine the levels of TBARS, GSH, CAT, SOD, GSH-Px and total protein, following the instructions of commercial kits.…”

mentioning

confidence: 99%

“…As illustrated in Scheme 1A, CTSSeNPs were spray-dried, and SeNPs were finally embedded into solid SeNPs-M. White Blank-M (without any Se) and red SeNPs-M were obtained, both of which were free-flowing powders. The Se content of SeNPs-M was determined by ICP-MS, 34 and it could be adjusted by modifying the material ratio. An SeNPs-M sample (29 g Se/kg) was selected to conduct the rest of the study.…”

mentioning

confidence: 99%

Preparation and antioxidant properties of selenium nanoparticles-loaded chitosan microspheres

Bai¹,

Hong²,

He³

et al. 2017

IJN

157

133

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Selenium nanoparticles (SeNPs), as a special form of selenium (Se) supplement, have attracted worldwide attention due to their favorable properties and unique bioactivities. Herein, an eco-friendly and economic way to prepare stable SeNPs is introduced. SeNPs were synthesized in aqueous chitosan (CTS) and then embedded into CTS microspheres by spray-drying, forming selenium nanoparticles-loaded chitosan microspheres (SeNPs-M). The physicochemical properties including morphology, elemental state, size distribution and surface potential were investigated. Institute of Cancer Research mice were used as model animal to evaluate the bioactivities of SeNPs-M. Trigonal-phase SeNPs of ~35 nm were synthesized, and SeNPs-M physically embedding those SeNPs were successfully prepared. Amazingly, acute toxicity test indicated that SeNPs-M were much safer than selenite in terms of Se dose, with a LD 50 of around 18-fold of that of selenite. In addition, SeNPs-M possessed powerful antioxidant activities, as evidenced by a dramatic increase of both Se retention and the levels of glutathione peroxidase, superoxide dismutase and catalase. The design of SeNPs-M can offer a new way for further development of SeNPs with a higher efficacy and better biosafety. Thus, SeNPs-M may be a potential candidate for further evaluation as an Se supplement with antioxidant properties and be used against Se deficiency in animals and human beings.

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“…In discussion of Cr analysis, it is important to discuss ICP-MS techniques [3,4,9,10]. The new ICP-MS instruments give LODs as low as 0.18 [3] and 0.11 ng/ml [9], which are similar to that of the present ESI-MS-MS method.…”

Section: Resultsmentioning

confidence: 52%

“…This cannot be avoided even if collision cell technology, which is similar to the MS-MS system, is used [10]. Therefore, ICP-MS cannot be used for hematuric urine samples, in which Fe ions derived from hemoglobin are abundant.…”

Section: Resultsmentioning

confidence: 96%

Determination of Urine Luck in urine using electrospray ionization tandem mass spectrometry

et al. 2008

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Determination of chromium, iron and selenium in foodstuffs of animal origin by collision cell technology, inductively coupled plasma mass spectrometry (ICP-MS), after closed vessel microwave digestion

Cited by 52 publications

References 29 publications

Speciation of chromium in cow's milk by solid-phase extraction/dynamic reaction cell inductively coupled plasma mass spectrometry (DRC-ICP-MS)

Speciation of chromium in cow's milk by solid-phase extraction/dynamic reaction cell inductively coupled plasma mass spectrometry (DRC-ICP-MS)

Preparation and antioxidant properties of selenium nanoparticles-loaded chitosan microspheres

Determination of Urine Luck in urine using electrospray ionization tandem mass spectrometry

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