A Preliminary Study of Raman Spectroscopy Potential for Chromium Detection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F18%3A63520657" target="_blank" >RIV/70883521:28140/18:63520657 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/abstract/document/8399592" target="_blank" >https://ieeexplore.ieee.org/abstract/document/8399592</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CarpathianCC.2018.8399592" target="_blank" >10.1109/CarpathianCC.2018.8399592</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Preliminary Study of Raman Spectroscopy Potential for Chromium Detection

Popis výsledku v původním jazyce

This paper presents a preliminary study of Raman spectroscopic measurement of chromium traces in leather and its processed forms such as shavings, hydrolyzate and ash. The emphasis is given on the valence of chromium, especially two most stable forms trivalent and hexavalent, as they have adverse effect on human health. Trivalent form is mainly beneficial. Compounds of hexavalent chromium are classified as carcinogens. The conventional methods for chromium assessments (e.g. FAAS) are often time-consuming and destructive. Some of methods give only the total chromium content value, which is not sufficient due to the nature of different valences. The official UV-VIS spectrophotometry is designed mainly for liquid samples. The innovative approach is the study of Raman spectroscopy possibilities. Raman spectroscopy is an efficient method for material identification reflecting the molecular structure. This method provides many benefits such as rapidity, non-invasiveness, no requirements for sample preparation, applicability to various materials. The results of the performed experiments show the hidden potential of Raman spectroscopy for the chromium detection with the benefit of direct determination of valence. The limitation can be by emerging luminescent. Silver colloidal treatment of luminescent samples indicated more intense Raman signal. An agreement was reached with trivalent and hexavalent chromium content in specially treated leather samples and the ash.

Název v anglickém jazyce

A Preliminary Study of Raman Spectroscopy Potential for Chromium Detection

Popis výsledku anglicky

This paper presents a preliminary study of Raman spectroscopic measurement of chromium traces in leather and its processed forms such as shavings, hydrolyzate and ash. The emphasis is given on the valence of chromium, especially two most stable forms trivalent and hexavalent, as they have adverse effect on human health. Trivalent form is mainly beneficial. Compounds of hexavalent chromium are classified as carcinogens. The conventional methods for chromium assessments (e.g. FAAS) are often time-consuming and destructive. Some of methods give only the total chromium content value, which is not sufficient due to the nature of different valences. The official UV-VIS spectrophotometry is designed mainly for liquid samples. The innovative approach is the study of Raman spectroscopy possibilities. Raman spectroscopy is an efficient method for material identification reflecting the molecular structure. This method provides many benefits such as rapidity, non-invasiveness, no requirements for sample preparation, applicability to various materials. The results of the performed experiments show the hidden potential of Raman spectroscopy for the chromium detection with the benefit of direct determination of valence. The limitation can be by emerging luminescent. Silver colloidal treatment of luminescent samples indicated more intense Raman signal. An agreement was reached with trivalent and hexavalent chromium content in specially treated leather samples and the ash.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 2018 19th International Carpathian Control Conference, ICCC 2018

ISBN

978-153864762-2

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

4

Strana od-do

5-8

Název nakladatele

Institute of Electrical and Electronics Engineers Inc.

Místo vydání

Piscataway, New Jersey

Místo konání akce

Szilvasvarad

Datum konání akce

28. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000439260500005