scholarly journals Determination of sialic acid in serum samples by dispersive solid-phase extraction based on boronate-affinity magnetic hollow molecularly imprinted polymer sorbent

RSC Advances ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 5394-5401 ◽  
Author(s):  
Wei Huang ◽  
Xingyu Hou ◽  
Yukui Tong ◽  
Miaomiao Tian

Boronate-affinity magnetic hollow molecularly imprinted polymers were prepared with sialic acid (SA) as a template to selectively extract SA from serum samples coupled with HPLC-UV.

2017 ◽  
Vol 9 (17) ◽  
pp. 2585-2589 ◽  
Author(s):  
Jieping Luo ◽  
Ning Chen ◽  
Zaiyue Yang ◽  
Jiyong Han ◽  
Wanying Zhu ◽  
...  

A reliable pretreatment method of magnetic molecularly imprinted polymers/dispersive solid-phase extraction was developed for selectivity and enrichment of targets.


2017 ◽  
Vol 9 (21) ◽  
pp. 3200-3212 ◽  
Author(s):  
S. Ansari

Trace determination of celecoxib by hollow porous molecularly imprinted polymer and solid-phase extraction (HPMIP-SPE) coupled with high-performance liquid chromatography with UV detection (HPLC/UV).


2018 ◽  
Vol 10 (29) ◽  
pp. 3637-3644 ◽  
Author(s):  
Juanjuan Xie ◽  
Bo Zhou ◽  
Tiandong Zhang ◽  
Xiaoying Zeng ◽  
Mochou Yang ◽  
...  

Preparation of surface molecularly imprinted polymer for the determination of nicotine in the zero-level refill liquids of electronic cigarettes.


Author(s):  
Kamran Bashir ◽  
Zhimin Luo ◽  
Guoning Chen ◽  
Hua Shu ◽  
Xia Cui ◽  
...  

Griseofulvin (GSF) is clinically employed to treat fungal infections in humans and animals. GSF was detected in surface waters as a pharmaceutical pollutant. GSF detection as an anthropogenic pollutant is considered as a possible source of drug resistance and risk factor in ecosystem. To address this concern, a new extraction and enrichment method was developed. GSF-surface molecularly imprinted polymers (GSF-SMIPs) were prepared and applied as solid phase extraction (SPE) sorbent. A dispersive solid phase extraction (DSPE) method was designed and combined with HPLC for the analysis of GSF in surface water samples. The performance of GSF-SMIPs was assessed for its potential to remove GSF from water samples. The factors affecting the removal efficiency such as sample pH and ionic strength were investigated and optimized. The DSPE conditions such as the amount of GSF-SMIPs, the extraction time, the type and volume of desorption solvents were also optimized. The established method is linear over the range of 0.1–100 µg/mL. The limits of detection and quantification were 0.01 and 0.03 µg/mL respectively. Good recoveries (91.6–98.8%) were achieved after DSPE. The intra-day and inter-day relative standard deviations were 0.8 and 4.3% respectively. The SMIPs demonstrated good removal efficiency (91.6%) as compared to powder activated carbon (67.7%). Moreover, the SMIPs can be reused 10 times for water samples. This is an additional advantage over single-use activated carbon and other commercial sorbents. This study provides a specific and sensitive method for the selective extraction and detection of GSF in surface water samples.


2018 ◽  
Vol 42 (19) ◽  
pp. 16144-16153 ◽  
Author(s):  
Arash Asfaram ◽  
Maryam Arabi ◽  
Abbas Ostovan ◽  
Hossein Sadeghi ◽  
Mehrorang Ghaedi

In the present study, a D-μ-SPE clean-up method was established for the analysis of quercetin in extracts of plants and food samples using a magnetic molecularly imprinted polymer as the sorbent by HPLC-UV detection.


Sign in / Sign up

Export Citation Format

Share Document