Excitation-Dependent Fluorescence Quantum Yield for Freshwater Chromophoric Dissolved Organic Matter from Northern Russian Lakes
المؤلفون المشاركون
Khundzhua, D. A.
Trubetskoj, Oleg A.
Trubetskaya, Olga E.
Patsaeva, S. V.
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-06-04
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Advanced fluorescence analysis within the wide range of excitation wavelengths from 230 to 510 nm accompanied with chromatography was used to study natural chromophoric dissolved organic matter (CDOM) from three freshwater Karelian lakes.
The influence of excitation wavelength (λex) on fluorescence quantum yield and emission maximum position was determined.
The CDOM fluorescence quantum yield has reached a minimum at λex∼270–280 nm and a maximum at λex∼340–360 nm.
It was monotonously decreasing after 370 nm towards longer excitation wavelengths.
Analytical reversed-phase high-performance liquid chromatography with multiwavelength fluorescence detector characterized distribution of fluorophores between hydrophilic/hydrophobic CDOM parts.
This technique revealed “hidden” protein-like fluorophores for some CDOM fractions, in spite of the absence of protein-like fluorescence in the initial CDOM samples.
The humic-like fluorescence was documented for all hydrophilic and hydrophobic CDOM chromatographic peaks, and its intensity was decreasing along with peaks’ hydrophobicity.
On contrary, the protein-like fluorescence was found only in the hydrophobic peaks, and its intensity was increasing along with peaks’ hydrophobicity.
This work provides new data on the CDOM optical properties consistent with the formation of supramolecular assemblies controlled by association of low-molecular size components.
In addition, these data are very useful for understanding the CDOM function in the environment.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Patsaeva, S. V.& Khundzhua, D. A.& Trubetskoj, Oleg A.& Trubetskaya, Olga E.. 2018. Excitation-Dependent Fluorescence Quantum Yield for Freshwater Chromophoric Dissolved Organic Matter from Northern Russian Lakes. Journal of Spectroscopy،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1202462
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Patsaeva, S. V.…[et al.]. Excitation-Dependent Fluorescence Quantum Yield for Freshwater Chromophoric Dissolved Organic Matter from Northern Russian Lakes. Journal of Spectroscopy No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1202462
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Patsaeva, S. V.& Khundzhua, D. A.& Trubetskoj, Oleg A.& Trubetskaya, Olga E.. Excitation-Dependent Fluorescence Quantum Yield for Freshwater Chromophoric Dissolved Organic Matter from Northern Russian Lakes. Journal of Spectroscopy. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1202462
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1202462
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر