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MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY

https://doi.org/10.32362/2410-6593-2017-12-5-47-55

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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

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

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

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

Student, Alimarin Chair of Analytical Chemistry, M.V. Lomonosov Institute of Fine Chemical Technologies

86, Vernadskogo Pr., Moscow, 119571, Russia



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For citation:


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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ISSN 2410-6593 (Print)
ISSN 2686-7575 (Online)