Magnetic graphitic carbon nitride nanoparticles covalently modified with an ethylenediamine for dispersive solid-phase extraction of lead(II) and cadmium(II) prior to their quantitation by FAAS

2017 ◽  
Vol 184 (8) ◽  
pp. 3027-3035 ◽  
Author(s):  
Bahareh Fahimirad ◽  
Alireza Asghari ◽  
Maryam Rajabi
Keyword(s):  
Solid Phase Extraction ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction

Facile and fast preparation of low-cost silica-supported graphitic carbon nitride for solid-phase extraction of fluoroquinolone drugs from environmental waters

2017 ◽  
Vol 1489 ◽  
pp. 9-17 ◽  
Author(s):  
Andrea Speltini ◽  
Federica Maraschi ◽  
Roberta Govoni ◽  
Chiara Milanese ◽  
Antonella Profumo ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Low Cost ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Phase Extraction ◽  
Environmental Waters

scholarly journals A magnetic graphitic carbon nitride as a new adsorbent for simple separation of Ni (II) ion from foodstuff by ultrasound-assisted magnetic dispersive micro solid-phase extraction method

2018 ◽  
Vol 1 (01) ◽  
pp. 47-56 ◽  
Author(s):  
Bahareh Fahimirad ◽  
Alireza Asghari
Keyword(s):  
Solid Phase Extraction ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Phase Extraction ◽  
Flame Atomic Absorption ◽  
Relative Standard ◽  
Separation And Preconcentration ◽  
Ultrasound Assisted

In this research, a magnetic graphitic carbon nitride (g-C3N4-SnFe2O4) was successfully synthesized and utilized as an efficient adsorbent for nickel (Ni2+) separation/extraction from vegetable samples by ultrasound-assisted magnetic dispersive micro solid-phase extraction (UA-M-D-μSPE). After separation and preconcentration step, Ni ions were determined via micro-sampling flame atomic absorption spectrometry (MS-FAAS). A successful synthesis of g-C3N4-SnFe2O4 was investigated by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and vibrating sample magnetometer (VSM). The optimization of adsorption and desorption steps was effectively studied by the on-at-a time method. In addition, under the optimum experimental conditions, the limits of detection (LODs), the linear ranges (LR) and relative standard deviations (RSDs%, for n = 5) were obtained 1.0 μg.L−1, 4.0 ─ 500.0 μg.L−1, and 1.4 respectively.

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