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Determination of nitrites and nitrates in plasma‐activated deionized water by microchip capillary electrophoresis
Contributions to Plasma Physics ( IF 1.3 ) Pub Date : 2020-02-29 , DOI: 10.1002/ctpp.202000014 Ladislav Moravský 1 , Peter Troška 2 , Matej Klas 1 , Marián Masár 2 , Štefan Matejčík 1
Contributions to Plasma Physics ( IF 1.3 ) Pub Date : 2020-02-29 , DOI: 10.1002/ctpp.202000014 Ladislav Moravský 1 , Peter Troška 2 , Matej Klas 1 , Marián Masár 2 , Štefan Matejčík 1
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In this work, we present the application of a fast and sensitive microanalytical method, microchip capillary electrophoresis (MCE), for the determination of NO2− and NO3− ions in deionized water treated by atmospheric pressure plasma jet (APPJ). The MCE technique consisted of an online combination of isotachophoresis with zone electrophoresis, both performed on the microchip. The argon plasma has been characterized by optical emission spectroscopy (OES) and Fourier transform infrared spectroscopy (FTIR). OES confirmed the presence of argon excited species (Ar I) emission (4p → 4s) lines, N2 emission bands (second positive system C3Πu → B3Πg), and OH band (A2∑+ → X2Π Δv = 0), as well as the presence of NO and excited NO2. The presence of NO2 molecules was also confirmed by FTIR absorption spectroscopy. The performance of the developed MCE method was evaluated for linearity, limit of detection, limit of quantitation, precision, and accuracy, and the concentration of NO2− and NO3− in the water as a function of the water treatment time was monitored.
中文翻译：
微芯片毛细管电泳测定血浆去离子水中的亚硝酸盐和硝酸盐
在这项工作中，我们提出了一种快速且灵敏的微量分析方法，微芯片毛细管电泳（MCE）的应用中，对于NO的测定2 -和NO 3 -中的去离子水的离子通过大气压等离子体射流（APPJ）处理。MCE技术由等速电泳和区域电泳在线组合组成，两者均在微芯片上进行。氩等离子体已经通过光发射光谱法（OES）和傅里叶变换红外光谱法（FTIR）表征。OES确认的氩激发物种的存在（AR I）发射（4P → 4S）线，N 2发射频带（第二正系统的C 3 Π ù →乙3 Π克），和OH吸收带（A 2 Σ + →X 2 ΠΔ v = 0），以及NO的存在和激发NO 2。FTIR吸收光谱法也证实了NO 2分子的存在。发达MCE方法的性能进行了评估线性，检测限，定量，精确度和准确度，和NO的浓度的极限2 -和NO 3 -中的水为的水处理时间的函数进行监控。
更新日期：2020-02-29
中文翻译：
微芯片毛细管电泳测定血浆去离子水中的亚硝酸盐和硝酸盐
在这项工作中，我们提出了一种快速且灵敏的微量分析方法，微芯片毛细管电泳（MCE）的应用中，对于NO的测定2 -和NO 3 -中的去离子水的离子通过大气压等离子体射流（APPJ）处理。MCE技术由等速电泳和区域电泳在线组合组成，两者均在微芯片上进行。氩等离子体已经通过光发射光谱法（OES）和傅里叶变换红外光谱法（FTIR）表征。OES确认的氩激发物种的存在（AR I）发射（4P → 4S）线，N 2发射频带（第二正系统的C 3 Π ù →乙3 Π克），和OH吸收带（A 2 Σ + →X 2 ΠΔ v = 0），以及NO的存在和激发NO 2。FTIR吸收光谱法也证实了NO 2分子的存在。发达MCE方法的性能进行了评估线性，检测限，定量，精确度和准确度，和NO的浓度的极限2 -和NO 3 -中的水为的水处理时间的函数进行监控。
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