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A novel sensitive, selective and stable nitric oxide (NO) microsensor is described, which is modified by nano Au colloid and Nafion. As determined by atomic forced microscopy (AFM), the diameter of Au colloid particles is from 7 to 14nm. The detection of NO is based on the nano Au particles catalysis of NO oxidation at an anodic potential of +0.74V (versus saturated calomel electrode (SCE)). The microsensor...
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