Simultaneous multi-element analysis of total As, Se and Sb on titanium dioxide by slurry sampling—graphite furnace atomic absorption spectrometry

Zhang, Liang; Ishi, Daisuke; Shitou, Kazutaka; Morita, Yukitoki; Isozaki, Akinori

doi:10.1016/j.talanta.2005.08.072

Cited by 29 publications

(20 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The speciation of As in groundwater samples used for domestic and agriculture purposes was carried out by separation/preconcentration methods. The activated alumina in acidic form has a high affinity for a range of oxoanions like As; 5,19,22,25,26 hence, both As species: AsO3 2-and AsO4 2-, could be retained and preconcentrated on alumina column through selecting the suitable pH. The small particles of Al2O3 are an amphoteric oxide with an isoelectric point (IEP) of 8.1.…”

Section: Resultsmentioning

confidence: 99%

“…Inorganic metal oxides, such as aluminum oxide (Al2O3), cobalt oxide and titanium dioxide, have been used to concentrate trace and ultra trace metallic elements as sorbents. [20][21][22][23][24] The Al2O3 showed high adsorption ability for target metal ions due to its ordered mesoporous structure with a pore size of about 10 nm. 25 For the quantitative determination of As, graphite furnace atomic absorption spectrometry (GFAAS) or hydride generation atomic absorption spectrometry (HGAAS) were frequently used.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

et al. 2011

View full text Add to dashboard Cite

A method has been developed for speciation of total, total inorganic and organic arsenic (As) species in groundwater samples. The inorganic species of As (III,V) were separated from organic forms by adsorbing on alumina (Al2O3) whereas the organic As was eluted out. The retained inorganic As species was eluted by 0.2 M HCl. Then eluent As III and As V were formed as complexes with ammonium pyrrolidinedithiocarbamate (APDC) and molybdate, respectively. Then As III -PDC and As V -molybdate complexes were quantitatively extracted into a non-ionic surfactant Triton X-114. The total As was determined by conventional preconcentration procedures. The resulting solutions of each method were determined by ETAAS with modifier. The main factors affecting the separation and cloud point extraction (CPE) were investigated in detail. The limits of detection values were found as 0.04 and 0.20 μg L -1 for As III and As V , respectively, whereas limits of quantification were observed as 0.13 and 0.33 μg L -1 for As III and As V , respectively. Standard addition method confirmed the accuracy. The recoveries of As III and As V were found in the range of 98 -99%. The proposed method was applied to groundwater samples collected from different areas of Sukkur district.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

et al. 2011

View full text Add to dashboard Cite

show abstract

“…16 In our previous work, a new method was proposed with a simultaneous multielement graphite-furnace atomicabsorption spectrometer, in which the technologies of solidphase extraction for TiO2 and slurry sampling were used. 17 The method with simultaneous multielement determination can save more time than that of a single element with a GF-AAS. Meanwhile, the slurry sampling simplifies the pretreated process.…”

Section: -17mentioning

confidence: 99%

“…Meanwhile, the slurry sampling simplifies the pretreated process. The fundamental adsorption conditions in the previous work 17 were listed in the subsequent analytical procedure.…”

Section: -17mentioning

confidence: 99%

See 1 more Smart Citation

Direct Simultaneous Determination for Ultratrace As, Se and Sb in River Water with Graphite-Furnace Atomic Absorpion Spectrometry by TiO2-Slurry Sampling

Zhang

Morita²,

Yoshikawa³

et al. 2007

ANAL. SCI.

Self Cite

View full text Add to dashboard Cite

A simple analytical method was established for the simultaneous multielement determination of As, Se and Sb in river water with GF-AAS using TiO2-slurry sampling. Titanium dioxide (TiO2, <0.5 μm) was applied as a sorbent to separate and concentrate these elements in a sample solution (100 -300 ml); after filtration, a slurry was prepared with the solid phase and 5.0 ml of ultrapure water. In order to apply to river-water samples, the effect of TiO2 in atomization, the effect of organic species of their metal and the interference of foreign ions were investigated. The proposed method was applied to JSAC 0302 and river water.

show abstract

Determination of fluorine in herbs and water samples by molecular absorption spectrometry after preconcentration on nano-TiO2 using ultrasound-assisted dispersive micro solid phase extraction

Krawczyk

Stanisz

2017

Anal Bioanal Chem

View full text Add to dashboard Cite

This work presents ultrasound-assisted dispersive micro solid phase extraction (USA DMSPE) for preconcentration of fluorine (F) in water and herb samples. TiO2 nanoparticles (NPs) were used as an adsorbent. The determination with slurry sampling was performed via molecular absorption of calcium monofluoride (CaF) at 606.440 nm using a high-resolution continuum source electrothermal absorption spectrometry (HR-CS ET MAS). Several factors influencing the efficiency of the preconcentration technique, such as the amount of TiO2, pH of sample solution, ultrasonication and centrifugation time and TiO2 slurry solution preparation before injection to HR-CS ET MAS, were investigated in detail. The conditions of detection step (wavelength, calcium amount, pyrolysis and molecule-forming temperatures) were also studied. After extraction, adsorbent with the analyte was mixed with 200 μL of H2O to prepare a slurry solution. The concentration limit of detection was 0.13 ng mL−1. The achieved preconcentration factor was 7. The relative standard deviations (RSDs, %) for F in real samples were 3–15%. The accuracy of this method was evaluated by analyses of certified reference materials after spiking: INCT-MPH-2 (Mixed Polish Herbs), INCT-SBF-4 (Soya Bean Flour), ERM-CAO11b (Hard Drinking Water) and TMDA-54.5 (Lake Ontario Water). The measured F contents in reference materials were in satisfactory agreement with the added amounts, and the recoveries were found to be 97–109%. Under the developed extraction conditions, the proposed method has been successfully applied for the determination of F in real water samples (lake, sea, tap water) and herbs.

show abstract

Simultaneous multi-element analysis of total As, Se and Sb on titanium dioxide by slurry sampling—graphite furnace atomic absorption spectrometry

Cited by 29 publications

References 24 publications

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

Direct Simultaneous Determination for Ultratrace As, Se and Sb in River Water with Graphite-Furnace Atomic Absorpion Spectrometry by TiO2-Slurry Sampling

Determination of fluorine in herbs and water samples by molecular absorption spectrometry after preconcentration on nano-TiO2 using ultrasound-assisted dispersive micro solid phase extraction

Contact Info

Product

Resources

About