“KOLIBRI-AAS” atomic absorption spectrometer for the simultaneous multielement analysis

Atomic absorption spectrometry (AAS) is one of the most widely used and available methods for analysis of substances and materials. It allows one to determine about 70 elements from the periodic table and is characterized by rapidity, high accuracy and sensitivity, as well as simplicity of analytical techniques. A feature of AAS is simultaneous determination of only one element due to the use of a measurement design with a line source (hollow-cathode lamps, high-frequency electrodeless lamps, optical quantum generators, etc.). To make AAS more competitive, the fi rst commercially available continuum source atomic absorption spectrometer was designed in 2004. Unique analytical capabilities of the new instruments found application fi rst of all in the analysis of food, pharmaceuticals, waste and drinking water, oil and petrochemicals, biological objects, etc. This review covers publications on the application of continuum source AAS in analytical chemistry and provides a development outlook of the method.

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High-resolution continuum source atomic absorption spectrometry: a review of current applications

Es’kina

Baranovskaya

Karpov

et al. 2020

Russ Chem Bull

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Estimation of the possibility of controlling the temperature of an electrothermal atomizer by the signals of the element absorption

Kolosov

Boldova

Лабусов

2022

Zavod. lab., Diagn. mater.

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Ñóùåñòâóþùàÿ â íàñòîÿùåå âðåìÿ ñèñòåìà êîíòðîëÿ òåìïåðàòóðû ýëåêòðîòåðìè÷åñêîãî àòîìèçàòîðà (ÝÒÀ), ïðèìåíÿþùåãîñÿ â àòîìíî-àáñîðáöèîííîì ñïåêòðîìåòðå äëÿ îäíîâðåìåííîãî ìíîãîýëåìåíòíîãî àíàëèçà, ïðè âñåõ ñâîèõ äîñòîèíñòâàõ íåñïîñîáíà îáåñïå÷èòü âûñîêèå õàðàêòåðèñòèêè ðåçóëüòàòîâ àíàëèçà ïðè óòðàòå àêòóàëüíîñòè êàëèáðîâêè âñòðîåííîãî îïòè÷åñêîãî ïèðîìåòðà, êîòîðàÿ îáóñëîâëåíà åñòåñòâåííûìè ïðîöåññàìè èçíîñà ãðàôèòîâûõ êþâåò â õîäå èõ ýêñïëóàòàöèè. Êîíòðîëü ðàáîòîñïîñîáíîñòè ÝÒÀ ñ ïîìîùüþ âíåøíåãî êàëèáðîâàííîãî ïèðîìåòðà òðóäîåìîê. Öåëåñîîáðàçíî èñïîëüçîâàòü äëÿ òàêîãî êîíòðîëÿ çàâèñèìîñòü òåìïåðàòóðû îò âðåìåíè ïîÿâëåíèÿ àòîìíûõ ïàðîâ ýëåìåíòîâ. Èññëåäîâàíà âîçìîaeíîñòü êîíòðîëÿ òåìïåðàòóðû ãðàôèòîâûõ êþâåò â ýëåêòðîòåðìè÷åñêîì àòîìèçàòîðå àòîìíî-àáñîðáöèîííîãî ñïåêòðîìåòðà ñ èñòî÷íèêîì íåïðåðûâíîãî ñïåêòðà ïî çàâèñèìîñòè ñèãíàëîâ ïîãëîùåíèÿ ýëåìåíòîâ îò âðåìåíè. Ïðàâèëüíîñòü êàëèáðîâêè ïðîâåðÿëè ïóòåì ðåãèñòðàöèè ñèãíàëîâ ïîãëîùåíèÿ ïðîáû, ñîäåðaeàùåé õèìè÷åñêèå ýëåìåíòû ðàçëè÷íîé ëåòó÷åñòè, è ïîñëåäóþùåé îöåíêè ìîìåíòà âðåìåíè è ñîîòâåòñòâóþùåé åìó òåìïåðàòóðû ïîÿâëåíèÿ àòîìíûõ ïàðîâ ýëåìåíòîâ. Â ðåçóëüòàòå ïîëó÷åíû òåìïåðàòóðû ïîÿâëåíèÿ àòîìíûõ ïàðîâ Al, Cd, In, Mn, Ni, Pb è V, ëåaeàùèå â äèàïàçîíå 640 -1940 °C. Ïðè èçìåíåíèè ñêîðîñòè íàãðåâà áîëåå ÷åì â 3 ðàçà òåìïåðàòóðà ïîÿâëåíèÿ ïàðîâ äëÿ âûáðàííûõ ýëåìåíòîâ èçìåíÿåòñÿ ìåíåå ÷åì íà 5 %. Ïîñðåäñòâîì èçìåíåíèÿ êàëèáðîâêè âñòðîåííîãî îïòè÷åñêîãî ïèðîìåòðà ìîäåëèðîâàëè ñèòóàöèþ óòðàòû àêòóàëüíîñòè êàëèáðîâêè ñ èçíîñîì ãðàôèòîâîé êþâåòû. Ïîêàçàíî ñìåùåíèå ãðàôèêà êîððåëÿöèè ìåaeäó ðåàëüíîé è èçìåðåííîé òåìïåðàòóðîé ïîÿâëåíèÿ ïàðîâ ýëåìåíòîâ ïðè íåêîððåêòíîé êàëèáðîâêå ïèðîìåòðà îáðàòíîé ñâÿçè. Ïðåäñòàâëåííûé â ðàáîòå ìåòîä ìîaeåò èñïîëüçîâàòüñÿ äëÿ ïðîâåðêè ïðàâèëüíîñòè êàëèáðîâêè âñòðîåííîãî ïèðîìåòðà, à òàêaeå äëÿ îïðåäåëåíèÿ íåîáõîäèìîñòè çàìåíû ãðàôèòîâîé êþâåòû, èñ÷åðïàâøåé ñâîé ðåñóðñ.Êëþ÷åâûå ñëîâà: àòîìíî-àáñîðáöèîííàÿ ñïåêòðîìåòðèÿ; ýëåêòðîòåðìè÷åñêèé àòîìèçàòîð; àòîìíûé ïàð; ìíîãîýëåìåíòíûé àíàëèç; îïòè÷åñêàÿ ïèðîìåòðèÿ; èçëó÷àòåëüíàÿ ñïîñîáíîñòü; ãðàôèòîâàÿ êþâåòà.

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“KOLIBRI-AAS” atomic absorption spectrometer for the simultaneous multielement analysis

Cited by 2 publications

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High-resolution continuum source atomic absorption spectrometry: a review of current applications

High-resolution continuum source atomic absorption spectrometry: a review of current applications

Estimation of the possibility of controlling the temperature of an electrothermal atomizer by the signals of the element absorption

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