本文先通过水热法合成了具有良好催化活性的铂纳米颗粒，再与比表面积大、稳

Synthesis of the first article platinum nanoparticles having excellent catalytic activity by a hydrothermal method, and then the large specific surface area, stability and strength of high-purity single-wall carbon nanotubes carboxyl high catalytic activity of the reaction, COOH obtained with high catalytic activity -SWCNTs-PtNPs composite material, the method of dispensing the composite material supported on the glassy carbon electrode clean, efficient and ultimately, rapid electrochemical sensor detects ethinyl estradiol molecule prepared. The COOH-SWCNTs-PtNPs composites were not complexed with the detection result and the COOH-SWCNTs PtNPs comparison, found COOH-SWCNTs-PtNPs composite material having a higher electrocatalytic activity.

In this paper, the platinum nanoparticles with good catalytic activity were synthesized by hydrothermal method, and then reacted with high-purity single-wall carbon nanotubes with larger surface area, strong stability and high catalytic activity, and obtained COOH-SWCNTs-PtNPs composite materials with high catalytic activity. The composite material is loaded on to a clean glass carbon electrode by drip coating method, and an electrochemical sensor can be obtained to detect the celenol molecule efficiently and quickly. The COOH-SWCNTs-PtNPs composite scanted with the non-composite PtNPs and COOH-SWCNTs respectively, and found that THE COOH-SWCNTs-PtNPs composite synth had higher electrocatalytic activity.

In this paper, platinum nanoparticles with good catalytic activity were synthesized by hydrothermal method, and then reacted with carboxylated high-purity single-walled carbon nanotubes with large specific surface area, strong stability and high catalytic activity. Cooh-swcnts-ptnps composite with high catalytic activity was obtained. The composite was loaded on clean glassy carbon electrode by drop coating method, and finally it was prepared with high efficiency Electrochemical sensor for rapid detection of ethinylestradiol. The cooh-swcnts-ptnps composite was compared with the uncomposite ptnps and cooh-swcnts respectively. It was found that cooh-swcnts-ptnps composite had higher electrocatalytic activity.