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MAREČKOVÁ, K. NOVÁKOVÁ, H. ČÁSLAVSKÝ, J. PĚNČÍKOVÁ, H. GERŠL, M.
Originální název
Charakterizace zbarvení aragonitového útvaru "Opona" ve Zbrašovských aragonitových jeskyních
Anglický název
The characterization of aragonite decoration "Opona" coloration in Zbrasov aragonite caves
Typ
článek v časopise - ostatní, Jost
Jazyk
čeština
Originální abstrakt
The "Opona" (The curtain) formation is one of the most beautiful objects in the Zbrašov Aragonite Caves. In eighties, the color, which was original/y chalky white to glass-clear, started to change to gray and reddish brown in some parts. The main goal of th is study was the characterization of organic compounds from the "Opona" surface by mass spectrometry. For this purpose, samples of colored material were taken from several places at the "Opona" formation. Samples were extracted by organic solvent using accelerated solvent extraction and also under transmethylation conditions. Both extracts were then analyzed by capillary CG with mass spectrometric detection. Various chemical compounds were identified by this way, some of them can serve as the proof of anthropogenic activities in the cave (smoking, explosives application), and other ones are proofs of microbial activity in the samples. Unfortunately, no information concerning the coloration origin was obtained by this way. The reason probably is that the reddish color is caused by high-molecular-weight intracellular pigment, which is not amenable for GC; in this ease, application of another mass spectrometric method used for the analysis of high-molecular-weight compounds of biogenic origin (like electrospray and MALDI-TOF) would be useful
Anglický abstrakt
Klíčová slova v angličtině
Degradarion of aragonite decoration
Autoři
MAREČKOVÁ, K.; NOVÁKOVÁ, H.; ČÁSLAVSKÝ, J.; PĚNČÍKOVÁ, H.; GERŠL, M.
Vydáno
11. 4. 2006
Nakladatel
Česká speleologická společnost
Místo
Sloup
ISSN
1211-8397
Periodikum
Speleofórum
Ročník
25
Stát
Česká republika
Strany od
80
Strany do
81
Strany počet
2
BibTex
@article{BUT44002, author="Kateřina {Marečková} and Hana {Nováková} and Josef {Čáslavský} and Kateřina {Pěnčíková}", title="Charakterizace zbarvení aragonitového útvaru {"}Opona{"} ve Zbrašovských aragonitových jeskyních", journal="Speleofórum", year="2006", volume="25", pages="80--81", issn="1211-8397" }