Evaluation of modifiers for determination of V in parsley by GF AAS

Ambrozini, Beatriz; Filho, Volnei Resta Amorim; Oliveira, Silvana Ruella de; Sacramento, Luís Vitor Silva do; Neto, José Anchieta Gomes

doi:10.1016/j.foodchem.2009.03.057

Cited by 5 publications

(6 citation statements)

References 24 publications

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“…The plant samples were mixed thoroughly to reduce gross heterogeneity before they were digested with a mixture of hydrogen nitrate and perchloric acid . The total V concentrations in plants were measured using graphite furnace atomic spectrometry (Perkin Elmer AAnalyst 800 atomic absorption spectrometer) . A standard stock solution (GSB04‐1759‐2004, Chinese Standard Material Center) that contained 1000 mg L −1 of V was applied to prepare the working standards (0 µg L −1 –200 µg L −1 ).…”

Section: Methodsmentioning

confidence: 99%

Damage suffered by swamp morning glory (Ipomoea aquatica Forsk) exposed to vanadium (V)

Cui

Yang

2016

Enviro Toxic and Chemistry

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To elucidate the physiological and morphological responses generated by vanadium (V) in plants, hydroponic culture experiments were performed with swamp morning glory (Ipomoea aquatica Forsk) exposed to 0 mg L À1 to 2.50 mg L À1 pentavalent V [V(V)] in Hoagland nutrient solutions. The concentration of chlorophyll a, chlorophyll b, and carotene peaked at a V(V) concentration of 0.05 mg L À1 and gradually decreased at higher V(V) concentrations. Similarly, the plant biomass was stimulated at low levels of V(V) and was inhibited when V(V) concentrations exceeded 0.1 mg L À1 . Pentavalent V had negative effects on the uptake of phosphorus (P) by roots, shoots, and leaves. The biological absorption coefficients of V of the roots were higher than those of the aerial parts. Under low concentrations of V(V) exposure, the predominant species of V in the aerial parts was tetravalent V [V(IV)], whereas V(V) became more prevalent when concentrations of V(V) in the solution was higher than 0.50 mg L À1. In the roots, however, the concentrations of V(V) were always higher than those of the V(IV), except in the control group. Organelles in the V(V)-treated leaves were distorted, and the periplasmic space became wider. These results indicate V(V) has concentration-dependent effects on the physiological properties of swamp morning glory, whereas the plant has the ability to develop self-protective function to adapt to the toxicity of V(V). Environ Toxicol Chem 2016;35:695-701. # 2015 SETAC

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Section: Methodsmentioning

confidence: 99%

Damage suffered by swamp morning glory (Ipomoea aquatica Forsk) exposed to vanadium (V)

Cui

Yang

2016

Enviro Toxic and Chemistry

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“…Slurry sampling ETAAS has also experienced renewed interest. Methods have been reported for the determination of As and Sb 214 and for Cd, Hg, Pb and Se 215 in soil (the latter in Japanese with English abstract), Sn in sediment, 216 and V 217 and Cd, Cu, Pb and Ni 218 in plant material.…”

Section: Instrumental Analysismentioning

confidence: 99%

Atomic spectrometry update. Environmental analysis

Butler

Cairns

Cook

et al. 2011

J. Anal. At. Spectrom.

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“…The refractory character of the molecule enforces the application of hot nitrous oxide-acetylene flame in conventional flame AAS 23–27 and the application of a high temperature of 2550–2800 °C in graphite furnace AAS. 23,24,26–32 The motivation of this work was to evaluate the possibility of V determination using air-acetylene flame in HR-CS FMAS and mild conditions in HR-CS GFMAS.…”

Section: Introductionmentioning

confidence: 99%

“…In the traditional approach to V atomization using a graphite furnace, the formation of solid carbides was highlighted. 26,27,30,32 It was considered responsible for the high temperature needed for V atomization and severe tailing of the V signal. Nevertheless, the VO molecule was detected in experiments where an electrothermal atomizer (made of Ta or of vitreous carbon) was connected to a mass spectrometer.…”

Section: Introductionmentioning

confidence: 99%