AIEE active SDS stabilized 2-naphthol nanoparticles as a novel fluorescent sensor for the selective recognition of crystal violet: application to environmental analysis,Analytical Methods

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AIEE active SDS stabilized 2-naphthol nanoparticles as a novel fluorescent sensor for the selective recognition of crystal violet: application to environmental analysis
Analytical Methods ( IF 2.7 ) Pub Date : 2018-04-20 00:00:00 , DOI: 10.1039/c8ay00328a
Dattatray K. Dalavi _{1,

2,

3,

4,

5} , Sonali B. Suryawanshi _{1,

2,

3,

4} , Govind B. Kolekar _{1,

2,

3,

4} , Shivajirao R. Patil _{1,

2,

3,

4}

Affiliation

Fluorescent nanoparticles of sodium dodecyl sulphate stabilized 2-naphthol (SDS-2-NNPs) were prepared using a reprecipitation method, and exhibited aggregation-induced enhanced emission (AIEE) at 410 nm. A novel spectrofluorimetric method for the quantitative determination of crystal violet based on the fluorescence quenching of SDS-2-NNPs in aqueous solution was proposed. The FL (fluorescence) intensity of SDS-2-NNPs, monitored at an excitation wavelength of 297 nm, was quenched by the successive addition of increasing amounts of crystal violet solution. The quenching results were found to fit the Stern–Volmer relationship in the range of 0.1–40 μg L⁻¹, with a correlation coefficient of 0.9990. The limit of detection was found to be 0.38 ng L⁻¹. The proposed sensing method based on FL quenching can be successfully applied for the quantitative analysis of crystal violet, over competitive ions, in water samples collected from different environments.

中文翻译：

AIEE活性SDS稳定化的2-萘酚纳米颗粒，作为一种选择性识别结晶紫的新型荧光传感器：在环境分析中的应用

使用再沉淀法制备了十二烷基硫酸钠稳定的2-萘酚（SDS-2-NNPs）荧光纳米粒子，并在410 nm处表现出聚集诱导的增强发射（AIEE）。提出了一种基于荧光猝灭水溶液中SDS-2-NNPs的荧光光谱法定量测定结晶紫的方法。通过连续添加逐渐增加量的结晶紫溶液，猝灭SDS-2-NNPs的FL（荧光）强度（在297 nm的激发波长下进行监测）。发现淬火结果在0.1–40μgL ^-1的范围内符合斯特恩-沃尔默关系，相关系数为0.9990。发现的检出限为0.38 ng L ^-1。所提出的基于FL猝灭的传感方法可以成功地用于定量分析从不同环境收集的水样中的竞争性离子中的结晶紫。

更新日期：2018-04-20

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