研究目的
To develop an inexpensive, portable, repeatable, highly sensitive, and field deployable electrochemical phosphate sensor using novel ammonium molybdate (AMT/AgNWs) modified screen printed electrode (SPE) for phosphate detection.
研究成果
The AMT/AgNWs/SPE sensor demonstrated high sensitivity (0.71 μA/μM), a wide detection range (5 μM -1 mM), and good repeatability, making it a promising tool for simple, low-cost, and portable phosphate ion detection in aqueous media.
研究不足
The study does not address the potential interference from other ions in complex matrices like soil or wastewater, which could affect the sensor's performance in real-world applications.
1：Experimental Design and Method Selection:
The study employed cyclic voltammetry (CV) measurements to evaluate the sensitivity and detection range of the AMT/AgNWs/SPE sensor.
2：Sample Selection and Data Sources:
Different concentrations of phosphate ion solutions were prepared by diluting a high concentration standard stock solution.
3：List of Experimental Equipment and Materials:
Screen printed electrodes (DropSens), silver nitrate (AgNO3), copper chloride (CuCl2), potassium chloride (KCl), sodium bi phosphate (Na2HPO4), silver nanowires (AgNWs), ammonium molybdate tetrahydrate (AMT), sulfuric acid (Fisher Scientific).
4：Experimental Procedures and Operational Workflow:
The working electrode was modified with AgNWs and AMT, and cyclic voltammetry measurements were performed using a computer-connected Ametek VERSASTAT3-200 potentiostat.
5：Data Analysis Methods:
The sensitivity, detection range, and limit of detection (LOD) were calculated based on the CV measurements.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Ametek VERSASTAT3-200 potentiostat
VERSASTAT3-200
Ametek
Used to perform cyclic voltammetry (CV) measurements.
-
Hitachi S-3400N Scanning Electron Microscopy
S-3400N
Hitachi
Used to measure the morphology of AgNWs.
-
Screen printed electrodes
DropSens
Used as the base electrode for modification with AgNWs and AMT for phosphate detection.
-
Silver nitrate
Sigma Aldrich
Used in the synthesis of silver nanowires.
-
Copper chloride
Sigma Aldrich
Used in the synthesis of silver nanowires.
-
Potassium chloride
Sigma Aldrich
Used as a supporting electrolyte during electrochemical measurements.
-
Sodium bi phosphate
Sigma Aldrich
Used to prepare phosphate ion solutions for testing.
-
Ammonium molybdate tetrahydrate
Sigma-Aldrich
Used to modify the screen-printed electrode for phosphate detection.
-
Sulfuric acid
Fisher Scientific
Used to prepare the supporting electrolyte solution.
-
登录查看剩余7件设备及参数对照表
查看全部
