In this study, we demonstrate a facile approach for the synthesis of strontium tungstate (G-SrWO₄) using Pomelo leaf extract via the sonochemical method. The electrocatalytic performance of G-SrWO₄ solubilized Nafion (Nf) (G-SrWO₄/Nf) modified GC electrode was evaluated for uric acid (UA) detection. The characteristic properties of the prepared G-SrWO₄ nanocomposite were analyzed by techniques like XRD, FT-IR, FESEM, EDX, HR-TEM, SEAD, XPS, and TGA analysis. The G-SrWO₄/Nf modified GC electrode displayed excellent electrocatalytic performance in UA sensing. The amperometric studies revealed that the G-SrWO₄/Nf modified GC electrode performed admirably by attaining a wide linear range response of UA 0.001 μM to 0.5 μM with a limit of detection 33ppm and sensitivity of 486 μAμM⁻¹cm⁻². Meanwhile, the G-SrWO₄/Nf modified GC electrode exhibited good selectivity, rapid and stable response towards UA. The practical applicability of the sensor was successfully tested by performing UA detection in the urine and serum samples with acceptable recovery results.

在这项研究中，我们证明了一种通过柚子叶提取物通过声化学方法合成钨酸锶（G-SrWO ₄）的简便方法。评估了G-SrWO ₄增溶的Nafion（Nf）（G-SrWO ₄ / Nf）修饰的GC电极的电催化性能，以检测尿酸（UA）。通过XRD，FT-IR，FESEM，EDX，HR-TEM，SEAD，XPS和TGA分析等技术分析了制备的G-SrWO ₄纳米复合材料的特性。G-SrWO ₄ / Nf修饰的GC电极在UA感测中显示出出色的电催化性能。安培法研究表明，G-SrWO ₄通过获得UA 0.001μM至0.5μM的宽线性范围响应，检测限为33ppm和灵敏度为486μAμM ^-1 cm ^-2，可出色地完成/ Nf修饰的GC电极的性能。同时，G-SrWO ₄ / Nf修饰的GC电极表现出良好的选择性，对UA的快速和稳定的响应。通过在尿液和血清样品中进行UA检测并获得可接受的恢复结果，成功测试了传感器的实际适用性。