2014
MALDI MS and ICP MS Detection of a Single CE Separation Record: A Tool for Metalloproteomics
TOMALOVÁ, Iva, Pavla FOLTYNOVÁ, Viktor KANICKÝ a Jan PREISLERZákladní údaje
Originální název
MALDI MS and ICP MS Detection of a Single CE Separation Record: A Tool for Metalloproteomics
Autoři
TOMALOVÁ, Iva (203 Česká republika, domácí), Pavla FOLTYNOVÁ (203 Česká republika, domácí), Viktor KANICKÝ (203 Česká republika, domácí) a Jan PREISLER (203 Česká republika, garant, domácí)
Vydání
Analytical Chemistry, Washington, American Chemical Society, 2014, 0003-2700
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.636
Kód RIV
RIV/00216224:14740/14:00073485
Organizační jednotka
Středoevropský technologický institut
UT WoS
000329548700068
Klíčová slova anglicky
MALDI MS; ICP MS; single run; capillary electrophoresis
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 2. 2018 22:11, prof. Mgr. Jan Preisler, Ph.D.
Anotace
V originále
In this work, a novel approach based on off-line coupling of a single run of capillary electrophoresis (CE) separation to both matrix-assisted laser desorption/ionization (MALDI) and substrate-assisted laser desorption inductively coupled plasma (SALD ICP) mass spectrometry (MS) is presented. Using a liquid junction and subatmospheric deposition chamber, CE fractions were extracted from a separation capillary and collected as 20-nL droplets on a custom-built polyethylene terephthalate glycol (PETG) target plate coated with a 10-nm gold layer which guaranteed compatibility with both MALDI and SALD ICP techniques. The MALDI matrix solution was then added to the produced spots. After it was dried, the separation record was consecutively analyzed in MALDI MS and ICP MS instruments. Thus, both proteomic and metallomic information was obtained off-line from a single CE run. The concept was demonstrated by the analysis of a mixture of rabbit liver metallothionein isoforms. In an additional study, the droplets representing the archived separation record were alternately mixed with two different MALDI matrices to obtain complementary information on both the apoproteins and their complexes with metals from a single separation run. The presented technique is a viable alternative to online coupling of column separation to electrospray MS and nebulizer ICP MS.
Návaznosti
ED1.1.00/02.0068, projekt VaV |
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EE2.3.30.0009, projekt VaV |
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GAP206/12/0538, projekt VaV |
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