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Preparation of ractopamine-tetraphenylborate complexed nanoparticles used as sensors to rapidly determine ractopamine residues in pork.

Zhang J, Shao X, Yue J, Li D, Chen Z - Nanoscale Res Lett (2014)

Bottom Line: In this work, we reported a simple, fast, and sensitive determination of ractopamine (RAC) residues in pork by using novel ractopamine-tetraphenylborate complexed nanoparticles (RT NPs) as sensors.The prepared RT NPs exhibited a fast response time of 10 s, a wide linear range from 0.1 to 1.0 × 10(-7) mol/L, and a very low detection limit of 7.4 × 10(-8) mol/L.These results reveal that the fabricated RT NPs can be used as efficient electrochemical sensors to determine ractopamine in animal productions.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Pharmacy, Liaoning Medical University, Jinzhou 121001, People's Republic of China.

ABSTRACT
In this work, we reported a simple, fast, and sensitive determination of ractopamine (RAC) residues in pork by using novel ractopamine-tetraphenylborate complexed nanoparticles (RT NPs) as sensors. The prepared RT NPs exhibited a fast response time of 10 s, a wide linear range from 0.1 to 1.0 × 10(-7) mol/L, and a very low detection limit of 7.4 × 10(-8) mol/L. The prepared sensor also presents a high selectivity for ractopamine under different pH conditions ranged from 2.85 to 7.18. These results reveal that the fabricated RT NPs can be used as efficient electrochemical sensors to determine ractopamine in animal productions.

No MeSH data available.


Related in: MedlinePlus

Calibration curves of the general CPEs (a) and the RT NP-modified CPEs (b).
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Figure 3: Calibration curves of the general CPEs (a) and the RT NP-modified CPEs (b).

Mentions: The response range of an ion-selective electrode is the linear part of the calibration curve [17]. As shown in Figure 3, the RT NP-modified CPEs (curve b) presented a wider response range compared to the general CPEs (modified only with RAC, curve a). The results were in line with the Nernstian behavior on the electrodes, and the concentration range is from 0.1 to 1.0 × 10−7 mol/L. The detection limit was calculated by the linearization method [17]. Compared to a detection limit of 2.7 × 10−7 mol/L for general CPEs to RAC, RT NP-modified CPEs presented a much lower detection limit of 7.4 × 10−8 mol/L. Kong et al. reported a detection limit of RAC of 2.38 × 10−8 mol/L based on a molecularly imprinted polymer film [25]; Rajkumar and his coworkers reported a detection limit of 1.5 × 10−7 mol/L by using zirconia nanoparticle-modified electrodes [26]; and Wu et al. got a detection limit of 17 μg/L by using graphene oxide as sensors [27]. Thus, the detection limit of 7.4 × 10−8 mol/L of RT NP-modified CPEs is at a similar detection limit level for RAC reported in the recent literatures.


Preparation of ractopamine-tetraphenylborate complexed nanoparticles used as sensors to rapidly determine ractopamine residues in pork.

Zhang J, Shao X, Yue J, Li D, Chen Z - Nanoscale Res Lett (2014)

Calibration curves of the general CPEs (a) and the RT NP-modified CPEs (b).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4256977&req=5

Figure 3: Calibration curves of the general CPEs (a) and the RT NP-modified CPEs (b).
Mentions: The response range of an ion-selective electrode is the linear part of the calibration curve [17]. As shown in Figure 3, the RT NP-modified CPEs (curve b) presented a wider response range compared to the general CPEs (modified only with RAC, curve a). The results were in line with the Nernstian behavior on the electrodes, and the concentration range is from 0.1 to 1.0 × 10−7 mol/L. The detection limit was calculated by the linearization method [17]. Compared to a detection limit of 2.7 × 10−7 mol/L for general CPEs to RAC, RT NP-modified CPEs presented a much lower detection limit of 7.4 × 10−8 mol/L. Kong et al. reported a detection limit of RAC of 2.38 × 10−8 mol/L based on a molecularly imprinted polymer film [25]; Rajkumar and his coworkers reported a detection limit of 1.5 × 10−7 mol/L by using zirconia nanoparticle-modified electrodes [26]; and Wu et al. got a detection limit of 17 μg/L by using graphene oxide as sensors [27]. Thus, the detection limit of 7.4 × 10−8 mol/L of RT NP-modified CPEs is at a similar detection limit level for RAC reported in the recent literatures.

Bottom Line: In this work, we reported a simple, fast, and sensitive determination of ractopamine (RAC) residues in pork by using novel ractopamine-tetraphenylborate complexed nanoparticles (RT NPs) as sensors.The prepared RT NPs exhibited a fast response time of 10 s, a wide linear range from 0.1 to 1.0 × 10(-7) mol/L, and a very low detection limit of 7.4 × 10(-8) mol/L.These results reveal that the fabricated RT NPs can be used as efficient electrochemical sensors to determine ractopamine in animal productions.

View Article: PubMed Central - HTML - PubMed

Affiliation: College of Pharmacy, Liaoning Medical University, Jinzhou 121001, People's Republic of China.

ABSTRACT
In this work, we reported a simple, fast, and sensitive determination of ractopamine (RAC) residues in pork by using novel ractopamine-tetraphenylborate complexed nanoparticles (RT NPs) as sensors. The prepared RT NPs exhibited a fast response time of 10 s, a wide linear range from 0.1 to 1.0 × 10(-7) mol/L, and a very low detection limit of 7.4 × 10(-8) mol/L. The prepared sensor also presents a high selectivity for ractopamine under different pH conditions ranged from 2.85 to 7.18. These results reveal that the fabricated RT NPs can be used as efficient electrochemical sensors to determine ractopamine in animal productions.

No MeSH data available.


Related in: MedlinePlus