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A Novel Analytical Method for Trace Ammonium in Freshwater and Seawater Using 4-Methoxyphthalaldehyde as Fluorescent Reagent
المؤلفون المشاركون
Hu, Hongzhi
Liang, Ying
Guo, Qing
Wu, Chancui
Pan, Yingming
Zhang, Qian
المصدر
Journal of Analytical Methods in Chemistry
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-09-01
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
A novel fluorescent reagent for determination of ammonium, 4-methoxyphthalaldehyde (MOPA), was successfully synthesized in this study.
Under alkaline conditions, MOPA could reacted with ammonium rapidly at room temperature, producing fluorescent substance which had maximum excitation at 370 nm and emission wavelength at 454 nm.
Based on this, a novel fluorescence analysis method was established for the determination of trace ammonium in natural water.
Experimental parameters including reagent concentration, pH, reaction equilibrium time, and metal ions masking agent were optimized.
The results showed that the optimized MOPA concentration was 0.12 g/L, pH was in the range of 11.2–12.0, and sulfite concentration was 0.051 g/L, respectively.
Metal ions masking agent had no obvious effect on the fluorescence signal.
With the reaction time of 15 minutes, linear range of this method was between 0.025 and 0.300 μmol/L, and the method detecting limit was 0.0058 μmol/L.
The matrix recovery of the proposed method was in the range of 93.6–108.1%.
Compared with the OPA method, this method was much more sensitive and rapid without the interference of background peak and would be more suitable for developing a portable fluorescence detection system.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liang, Ying& Pan, Yingming& Guo, Qing& Hu, Hongzhi& Wu, Chancui& Zhang, Qian. 2015. A Novel Analytical Method for Trace Ammonium in Freshwater and Seawater Using 4-Methoxyphthalaldehyde as Fluorescent Reagent. Journal of Analytical Methods in Chemistry،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1067192
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liang, Ying…[et al.]. A Novel Analytical Method for Trace Ammonium in Freshwater and Seawater Using 4-Methoxyphthalaldehyde as Fluorescent Reagent. Journal of Analytical Methods in Chemistry No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1067192
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liang, Ying& Pan, Yingming& Guo, Qing& Hu, Hongzhi& Wu, Chancui& Zhang, Qian. A Novel Analytical Method for Trace Ammonium in Freshwater and Seawater Using 4-Methoxyphthalaldehyde as Fluorescent Reagent. Journal of Analytical Methods in Chemistry. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1067192
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1067192
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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