Construction of uniformly sized pseudo template imprinted polymers coupled with HPLC–UV for the selective extraction and determination of trace estrogens in chicken tissue samples

Self-assembly molecularly imprinted polymers of 17β-estradiol on the surface of magnetic nanoparticles for selective separation and detection of estrogenic hormones in feeds

“…DSPE was recently introduced as a rapid and simple technique for clean-up crude extracts of different food and environmental samples [14][15][16][17]. It is based on the addition of the adsorbing material into the extract to remove the matrix concomitants, which is then separated from the extract bulk by centrifugation, and the technique was named as QuEChERS (quick, easy, cheap, effective, rugged and safe).…”

Reduced graphene oxide-platinum nanoparticles composites based imprinting sensor for sensitively electrochemical analysis of 17β-estradiol

“…The LOD was calculated to be 0.002 lM (based on S/N = 3). As shown in Table 2, it was much lower than the reported methods [15,[39][40][41][42][43]. PtNPs, which were reported to have unique catalytic activities to E2 [43], facilitated the electrocatalysis process of estrogens.…”

“…After the extraction of templates, the cross-linked polymer matrices possessing specific binding sites are obtained [12][13][14]. MIPs with high selectivity towards E2 have been applied to the detection of estrogen in milk, chicken and fish tissue [15][16][17][18]. The electrochemical sensor has many advantages such as high sensitivity, ease of control and can realize real-time detection.…”

Magnetic molecularly imprinted nanoparticles based on dendritic-grafting modification for determination of estrogens in plasma samples

“…The precision of the proposed method was evaluated by measuring intra-and inter-day relative standard deviations (RSDs) at concentrations 10.0 ng mL −1 for E1, E2, E3 and EE2, which were within the range of 3.2-3.8% and 4.0-5.3%, respectively. Some methods have been reported to determine estrogens [11,[32][33][34]. Compared with the other sample pretreatment methods (Table 4), this developed method is simple, timesaving, reliable, sensitive and good selectivity.…”