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Updated: Feb 10, 2026

Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees
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层次性等离子Au@ZnO化学传感器提高了Pb2+金属离子的灵敏度和检测极限

Km Preeti1, Sanjeev Kumar Sharma1

  • 1Biomaterials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University, Meerut, UP 250004, India.

ACS omega
|February 9, 2026
PubMed
概括

金氧化物 (Au@ZnO) 纳米粒作为检测 (Pb2+) 的敏感化学传感器. 这项研究强调了它们在环境重金属监测中的稳定性和选择性.

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Difference from Background: Limit of Detection

The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
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The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
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