scholarly journals An in situ electrochemical fabrication of layer by layer graphenized graphite polyaniline as a stable solid‐phase microextraction fiber coating for trace environmental analysis

2019 ◽  
Vol 42 (7) ◽  
pp. 1364-1373 ◽  
Author(s):  
Habib Razmi ◽  
Sara Manafi Khoshmanesh
Keyword(s):  
Environmental Analysis ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Layer By Layer ◽  
Fiber Coating ◽  
Electrochemical Fabrication

scholarly journals Ionic Liquid-modified NiTi Composite Nanosheets Coating for Efficient Solid Phase Microextraction of Octadecylamine in Brine

2019 ◽  
pp. 1-8
Author(s):  
Huiju Wang
Keyword(s):  
Ionic Liquid ◽  
Solid Phase Microextraction ◽  
Extraction Efficiency ◽  
Solid Phase ◽  
Correlation Coefficients ◽  
Fiber Coating ◽  
Relative Standard ◽  
Optimized Conditions ◽  
As Solid Phase

Ionic     liquid (IL), 1-dodecyl-3-methylimidazolium-3-hydroxy-2-naphthoate (C12mimHNC) was synthesized and coated on the surface of NiTi as solid phase microextractiom fiber coating for determination the octadecylamine in brine. Prior to modification with IL, the NiTi was hydrothermally treated for in-situ growth of titanium and nickel oxide composite nanosheets (TiO2/NiOCNSs). The TiO2/NiOCNSs fibers coating was oriented  around the NiTi  substrate and  presented  double-faced  open  access  sites,  which provided a desired support framework for the further modification with IL. The extraction performance of C12mimHNC-TiO2/NiOCNSs fiber coating was evaluated for       detection of octadecylamine (ODA) coupled to HPLC with UV detection. As a result, the C12mimHNC-TiO2/NiOCNSs fiber coating illustrated excellent adsorption and extraction capability for ODA. The main factors affected extraction efficiency were optimized. Under the optimized  conditions,  good  linearity was  obtained  in  the  range of  1-150  µg/L with correlation  coefficients  (r2)  above  0.985.  Limits of detection (LODs) for  the  developed method was 0.280 µg/L. The proposed method was first applied to extract the ODA in brine samples. Relative recoveries varied from 78.3% to 96.5% at spiking level of 15µg/L and 30 µg/L with the relative standard deviations (RSDs) less than 8.7%.

Layer-by-layer fabrication of g-C3N4 coating for headspace solid-phase microextraction of food additives followed by gas chromatography-flame ionization detection

2018 ◽  
Vol 10 (3) ◽  
pp. 322-329 ◽  
Author(s):  
Yixin Yang ◽  
Peige Qin ◽  
Xiaoting Zhang ◽  
Jiahua Niu ◽  
Shufang Tian ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Food Additives ◽  
Flame Ionization Detection ◽  
Layer By Layer ◽  
Fiber Coating ◽  
Spme Fiber ◽  
Flame Ionization ◽  
Headspace Spme

With graphitic carbon nitride (g-C3N4) as an SPME fiber coating, a headspace SPME-GC was developed for the analysis of food additives.

In-situ layer-by-layer synthesized TpPa-1 COF solid-phase microextraction fiber for detecting sex hormones in serum

2020 ◽  
Vol 1137 ◽  
pp. 28-36
Author(s):  
Jiating Zheng ◽  
Shuyao Huang ◽  
Yuanjun Tong ◽  
Songbo Wei ◽  
Guosheng Chen ◽  
...  
Keyword(s):  
Sex Hormones ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Layer By Layer

Trace analysis of organophosphorus pesticide residues in fruit juices and vegetables by an electrochemically fabricated solid-phase microextraction fiber coated with a layer-by-layer graphenized graphite/graphene oxide/polyaniline nanocomposite

2020 ◽  
Vol 12 (25) ◽  
pp. 3268-3276
Author(s):  
Sara Manafi Khoshmanesh ◽  
Hamed Hamishehkar ◽  
Habib Razmi
Keyword(s):  
Graphene Oxide ◽  
Trace Analysis ◽  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Organophosphorus Pesticide ◽  
Layer By Layer ◽  
Pencil Lead ◽  
Polyaniline Nanocomposite

A solid-phase microextraction pencil lead fiber coated with a layer-by-layer graphenized graphite/graphene oxide/polyaniline nanocomposite was made by an in situ electrochemical method for the trace analysis of organophosphorus pesticide residues.

Layer-by-layer coated molecular-imprinted solid-phase microextraction fibers for the determination of polar compounds in water samples

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 94098-94104 ◽  
Author(s):  
Maosheng Zhang ◽  
Jiarong Huang
Keyword(s):  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Polar Compounds ◽  
Selective Extraction ◽  
Layer By Layer ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

In this study, the selective extraction of polar compound in water samples was reported using molecular-imprinted solid-phase microextraction (MISPME) combined with dispersive liquid–liquid microextraction (DLLME) within situderivatization.

Electrochemical fabrication of two-dimensional copper oxide nanosheets on stainless steel as a fiber coating for highly sensitive solid-phase microextraction of ultraviolet filters

2018 ◽  
Vol 10 (33) ◽  
pp. 4044-4052 ◽  
Author(s):  
Yaoxia Yang ◽  
Yu Lei ◽  
Rong Zhang ◽  
Xuemei Wang ◽  
Xinzhen Du
Keyword(s):  
Stainless Steel ◽  
Copper Oxide ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Steel Wire ◽  
Two Dimensional ◽  
Fiber Coating ◽  
Highly Sensitive ◽  
Bulk Electrolysis ◽  
Electrochemical Fabrication

A novel two-dimensional copper oxide (CuO) nanosheet coated fiber was directly fabricated on the surface of a piece of etched stainless steel wire using bulk electrolysis with coulometry (BE) for solid-phase microextraction (SPME).

Carbon aerogel as a solid-phase microextraction fiber coating for the extraction and detection of trace tetracycline residues in food by coupling with high-performance liquid chromatography

2021 ◽  
Author(s):  
Zong-Mu Dong ◽  
Lu Cheng ◽  
Tong Sun ◽  
Guang-Chao Zhao ◽  
Xianwen Kan
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solid Phase Microextraction ◽  
High Performance ◽  
Solid Phase ◽  
Carbon Aerogel ◽  
Performance Parameters ◽  
Fiber Coating ◽  
Tetracycline Residues ◽  
Tetracycline Detection

An efficient SPME method using the carbon aerogel as fiber coating was developed for tetracycline detection, and the performance parameters of the analysis are optimized via the BBD software.

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