求翻译：本文建立了一种利用没食子酸功能化的纳米金组装材料检测铅离子的方法，通过纳米金表面的没食子酸与铅离子的络合作用，导致纳米金颗粒之间距离的变化，反应在纳米金颗粒紫外吸收光谱的迁移，从而达到定量检测铅离子的目的，并且将该方法应用到蜂产品中铅离子的测定。实验证明该方法准确性高，检测限低，并具有较强的抗离子强度干扰性，实际应用性强。是什么意思？

In this paper the establishment of the a no gallic acid functionality of the nano-gold assembly materials detection of lead ions in the method, the surface of gold nanoparticles did not gallic acid and the lead ion complexation role, led to the distance between the gold nanoparticles changes the rea

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