%0 Journal Article
%T 基于MoS<sub>2</sub>量子点荧光内滤作用测定环境水样中对硝基苯酚<br>Determination of p-Nitrophenol in Environmental Water Samples Based on MoS<sub>2</sub> Quantum Dots by Fluorescence Inner Filter Effect
%A 宁可可
%A 向国强
%A 乔晓红
%A 王鑫
%A 王琪
%A 肖温洁
%A 柳金枝
%A 张兰兰
%J Advances in Analytical Chemistry
%P 168-174
%@ 2163-1565
%D 2019
%I Hans Publishing
%R 10.12677/AAC.2019.93022
%X <div style=\"text-align:justify;\">
	以钼酸钠和L-半胱氨酸为原料，聚(4-苯乙烯磺酸钠)为修饰剂，通过一步水热反应法成功制备了二硫化钼量子点(MoS<sub>2</sub> QDs)。所制备的MoS<sub>2</sub> QDs在390 nm处有较强荧光发射(激发波长300 nm)，由于在碱性条件下，对硝基苯酚(p-NP)在390 nm处有明显吸收峰，因此p-NP对MoS<sub>2</sub> QDs荧光具有较强内滤作用(IFE)，基于这种内滤作用建立了p-NP的分析新方法。该方法检出限(3σ)为0.13 μM，相对标准偏差RSD为1.2% (c = 15 μM, n = 11)。线性范围为1~20 μM。该方法成功应用于环境水样中p-NP的测定。<br />
Molybdenum disulfide quantum dots (MoS<sub>2</sub> QDs) were successfully prepared by one-step hydro-thermal reaction using sodium molybdate and L-cysteine as raw materials and poly (4-styrenesul- fonate) as a modifier. The prepared MoS<sub>2</sub>QDs have a strong fluorescence emission at 390 nm (ex-citation wavelength is 300 nm); p-NP is observed at 390 nm under alkaline conditions. Therefore, p-NP has a strong inner filter effect (IFE) on the fluorescence of MoS<sub>2</sub> QD and a new analytical method for p-NP is established based on this IFE. The detection limit (3σ) of this method was 0.13 μM, and the relative standard deviation RSD is 1.2% (c = 15 μM, n = 11). The linear range is 1 - 20 μM. This method is successfully applied to the determination of p-NP in environmental water samples.
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%K 二硫化钼量子点，对硝基苯酚，内滤作用<br>Molybdenum Disulfide Quantum Dots
%K p-Nitrophenol
%K Inner Filter Effect
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=31813