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A comparison study of chemiluminescence systems for the flow injection determination of silver nanoparticles
Microchemical Journal ( IF 4.9 ) Pub Date : 2019-01-01 , DOI: 10.1016/j.microc.2018.09.008
Edyta Nalewajko-Sieliwoniuk , Julita Malejko , Anna Topczewska , Anatol Kojło , Beata Godlewska-Żyłkiewicz

Abstract The comprehensive study of various chemiluminescence systems (luminol, lucigenin, KMnO4, Mn(IV), Ce(IV) and K3Fe(CN)6) in terms of their applicability to the detection of silver nanoparticles (AgNPs) has been carried out for the first time. Among the fourteen systems tested, Mn(IV)-formaldehyde-hexametaphosphate was selected as the optimal for the trace determination of AgNPs. The flow injection chemiluminescence method (FI-CL) based on enhancing effect of AgNPs on Mn(IV) chemiluminescence was developed. It was found that sensitivity of measurements depends on the size of AgNPs as well as the type of nanoparticles coating. Under the optimized conditions, the detection limits for AgNPs size fractions of 10 nm, 40 nm and 100 nm stabilized by sodium citrate were in the range 0.3–2.9 μg L−1, AgNPs size fractions of 40 nm, 60 nm and 100 nm stabilized by polyethylene glycol (PEG) were in the range 2.7–13.3 μg L−1, AgNPs size fractions of 20 nm and 75 nm stabilized by polyvinylpyrrolidone (PVP) were 20.2 μg L−1 and 24.9 μg L−1, respectively. Repeatability of the results expressed as a relative standard deviation (n = 10) was ≤3.3%. The developed method is simple and offers high sample throughput (150 samples per hour). The accuracy of the method was confirmed by analysis of the reference material RM 8017. The method was successfully applied to the direct determination of trace amounts of AgNPs in spiked natural mineral and tap water samples. The recoveries of AgNPs were in the range of 96.8–102%.

中文翻译:

流动注射测定银纳米粒子的化学发光系统对比研究

摘要 对各种化学发光系统(鲁米诺、光泽精、KMnO4、Mn(IV)、Ce(IV) 和 K3Fe(CN)6)在银纳米粒子 (AgNPs) 检测中的适用性进行了综合研究。第一次。在测试的 14 个系统中,Mn(IV)-甲醛-六偏磷酸盐被选为 AgNPs 痕量测定的最佳选择。开发了基于AgNPs对Mn(IV)化学发光的增强作用的流动注射化学发光方法(FI-CL)。发现测量的灵敏度取决于 AgNPs 的大小以及纳米粒子涂层的类型。在优化条件下,柠檬酸钠稳定的 10 nm、40 nm 和 100 nm 的 AgNPs 尺寸分数的检测限在 0.3–2.9 μg L-1 范围内,AgNPs 尺寸分数为 40 nm,聚乙二醇 (PEG) 稳定的 60 nm 和 100 nm 范围为 2.7–13.3 μg L-1,聚乙烯吡咯烷酮 (PVP) 稳定的 20 nm 和 75 nm AgNPs 大小分数为 20.2 μg L-1 和 24.9 μg L- 1、分别。结果的重复性表示为相对标准偏差 (n = 10) ≤ 3.3%。开发的方法简单且提供高样品通量(每小时 150 个样品)。该方法的准确性通过对标准物质 RM 8017 的分析得到证实。该方法已成功应用于直接测定加标天然矿物和自来水样品中痕量的 AgNP。AgNPs 的回收率在 96.8-102% 的范围内。分别为 2 μg L-1 和 24.9 μg L-1。结果的重复性表示为相对标准偏差 (n = 10) ≤ 3.3%。开发的方法简单且提供高样品通量(每小时 150 个样品)。该方法的准确性通过对标准物质 RM 8017 的分析得到证实。该方法已成功应用于直接测定加标天然矿物和自来水样品中痕量的 AgNP。AgNPs 的回收率在 96.8-102% 的范围内。分别为 2 μg L-1 和 24.9 μg L-1。结果的重复性表示为相对标准偏差 (n = 10) ≤ 3.3%。开发的方法简单且提供高样品通量(每小时 150 个样品)。该方法的准确性通过对标准物质 RM 8017 的分析得到证实。该方法已成功应用于直接测定加标天然矿物和自来水样品中痕量的 AgNP。AgNPs 的回收率在 96.8-102% 的范围内。该方法已成功应用于直接测定加标天然矿物和自来水样品中痕量的 AgNPs。AgNPs 的回收率在 96.8-102% 的范围内。该方法已成功应用于直接测定加标天然矿物和自来水样品中痕量的 AgNPs。AgNPs 的回收率在 96.8-102% 的范围内。
更新日期:2019-01-01
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