SIMULTANEOUS DETERMINATION OF METALS AND SULFUR IN CRUDE OIL DISTILLATION RESIDUES BY ICP-OES
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چکیده
منابع مشابه
Simultaneous separation and determination of Tl(I) and Tl(III) by IC-ICP-OES and IC-ICP-MS
A new hyphenated method was developed for the speciation of Tl. In this method, Tl(III) was complexed with DTPA to form a Tl(III)-DTPA anionic complex. Tl(I) did not form a complex with DTPA. The two species were separated simultaneously by means of ion chromatography using a Dionex cation exchange guard column, CG12A, and 15 mmol/l nitric acid as eluant. When ICP-OES was used as detector the d...
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recent studies have reported that metal sulfide nanoparticles had potential adverse effects. in this research, lead (ii) sulfide nanoparticles have been synthesized under different reaction conditions. scanning electron microscopy and x-ray diffraction were used to characterize the particle size and morphology. distribution, accumulation and toxic effects of nanoparticles on rats as a biologic...
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Foi desenvolvido um método de extração de íons de metais presentes em amostras de arroz, usando solução amoniacal de EDTA (ácido etilenodiamino tetraacético), pH ≥ 10, como agente extrator, sob as seguintes condições otimizadas: 0,20 g de amostra de arroz e 5,00 mL da solução amoniacal de EDTA, com 5 min de tempo de exposição em ultrassom. Usando condições robustas de ICP OES (espectrometria de...
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The concentrations of zinc (Zn), iron (Fe) and copper (Cu) in both human milk and infant formula were determined using a new sample preparation method, by inductively coupled plasma - optical emission spectometry (ICP-OES) and flame atomic absorption spectrometry (FAAS). Human milk samples were diluted in ultrapure water. The infant formula of powder samples (suitable for an infant 1-6 months o...
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Heavy metals are among the most significant freshwater pollutants and pose severe threats to geographical biodiversity. Pollution by heavy metals such as Cd, Pb, etc. not only affects the productivity of crops, but also compromises the quality of the atmosphere and water bodies. By propagation through the food chain, this type of pollution also threatens the health and life of animals and human...
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ژورنال
عنوان ژورنال: Química Nova
سال: 2016
ISSN: 0100-4042
DOI: 10.5935/0100-4042.20160107