MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY
https://doi.org/10.32362/2410-6593-2017-12-5-47-55
Abstract
Results of testing a prototype light-emitting diod miniphotometer for rapid and sensitive elements determination both in laboratory and in field conditions are presented. The new photometer consists of two devices providing measurements of absorbance and diffuse reflectance, having a joint system of data management, registration and presentation of the results. The measurements of absorbance were registered in the visible spectrum. The explored reaction of Mn(II) with 1-(2-pyridylazo)-2-naphthol and the new reaction with 2-(2-quinolinazo)-5-diethylaminophenol were used to verify the device’s metrological parameters. Spectra obtained by means of the proposed photometer were compared to those for commercial photometers. A computer algorithm considering the difference in light-emitting intensity between diods was developed. The possibility of determination down to 1 mkg/ml metal ions in liquid samples was shown.
About the Authors
Ya. I. Simakina
Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Postgraduate Student, Junior Researcher, Laboratory of Instrumental Methods and Organic Reagents
GEOKHI RAS, 19, Kosygina St., Moscow, 119991, Russia
I. I. Kuzmin
Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Junior Researcher, Laboratory of Instrumental Methods and Organic Reagents
GEOKHI RAS, 19, Kosygina St., Moscow, 119991, Russia
Yu. I. Fabelinsky
Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Senior Researcher, Laboratory of Instrumental Methods and Organic Reagents
GEOKHI RAS, 19, Kosygina St., Moscow, 119991, Russia)
T. Kh. Chyong
Moscow Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)
Russian Federation
Russian Federation
Student, Alimarin Chair of Analytical Chemistry, M.V. Lomonosov Institute of Fine Chemical Technologies
86, Vernadskogo Pr., Moscow, 119571, Russia
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Review
For citations:
Simakina Y.I., Kuzmin I.I., Fabelinsky Yu.I., Chyong T.K. MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY. Fine Chemical Technologies. 2017;12(5):47-55. (In Russ.) https://doi.org/10.32362/2410-6593-2017-12-5-47-55
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