Journal of AOAC International 2015-01-01

Evaluation of Graphene as a Solid-Phase Extraction Sorbent for the Preconcentration and Determination of Trace Amounts of Nickel in Food Samples Prior to Flame Atomic Absorption Spectrometry.

Bahram Ebrahimi, Soleiman Bahar, Seyde Elham Moedi

文献索引：J. AOAC Int. 98 , 822-7, (2015)

全文：HTML全文

摘要

A sensitive and low cost SPE method for the extraction, preconcentration, and flame atomic absorption spectrometric determination of nickel at ng/mL levels is described. Parameters governing the extraction efficiency including pH of the solution, eluent type, sample volume, and matrix ions were investigated for optimization of the presented procedure. The enhancement factor was calculated as 96.5. The calibration curve was linear with R2 of 0.999 in the concentration range from 2 to 200 ng/mL. The RSD was 5.35% (n=7), the LOD was 0.588 ng/mL, and relative recoveries from vegetable samples ranged between 99 and 109.5%.

相关化合物

  • 硫酸
  • 氢氧化钠
  • 溴化钾
  • 氟化氢
  • 过氧化氢
  • 盐酸
  • 肼
  • 硝酸
  • 硝酸钠
  • 3-乙基-2,4-戊烷二...

相关文献：

Evaluation of the immune response and protective efficacy of Schistosoma mansoni Cathepsin B in mice using CpG dinucleotides as adjuvant.

2015-01-03

[Vaccine 33(2) , 346-53, (2014)]

Comparison of mcl-Poly(3-hydroxyalkanoates) synthesis by different Pseudomonas putida strains from crude glycerol: citrate accumulates at high titer under PHA-producing conditions.

2014-01-01

[BMC Biotechnol. 14 , 962, (2015)]

Process development for scum to biodiesel conversion.

2015-06-01

[Bioresour. Technol. 185 , 185-93, (2015)]

Lipid production in the under-characterized oleaginous yeasts, Rhodosporidium babjevae and Rhodosporidium diobovatum, from biodiesel-derived waste glycerol.

2015-06-01

[Bioresour. Technol. 185 , 49-55, (2015)]

Investigation of the interactions between the EphB2 receptor and SNEW peptide variants.

2014-12-01

[Growth Factors 32(6) , 236-46, (2014)]

更多文献...