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@ARTICLE{Nischwitz:820873,
author = {Nischwitz, Volker and Gottselig, Nina and Missong, Anna and
Meyn, Thomas and Klumpp, Erwin},
title = {{F}ield flow fractionation online with {ICP}-{MS} as novel
approach for the quantification of fine particulate carbon
in stream water samples and soil extracts},
journal = {Journal of analytical atomic spectrometry},
volume = {31},
number = {9},
issn = {1364-5544},
address = {Cambridge},
publisher = {ChemSoc},
reportid = {FZJ-2016-06137},
pages = {1858 - 1868},
year = {2016},
abstract = {Reliable and efficient analytical techniques are required
for quantitative size-resolved carbon determination of
nanoparticles and colloids in complex sample matrices due to
the key role of carbon in biological and environmental
processes. Field flow fractionation (FFF) online with
inductively coupled plasma mass spectrometry (ICP-MS) is a
powerful technique for identification and quantification of
particle bound metals, but has not been applied for
quantitative determination of particulate carbon, yet, due
to several challenges. Therefore, our study explores the
potential of online particulate carbon detection by ICP-MS
to overcome limitations of previously used UV detection or
offline total organic carbon measurements. A novel organic
carbon detector (OCD) was used as independent sensitive
carbon detector to validate the ICP-MS results. Basic
validation of organic carbon detection by offline quadrupole
and sector-field ICP-MS was performed for fresh water
samples using OCD as reference achieving recoveries of 107
± $16\%$ with Q-ICP-MS and 122 ± $22\%$ with SF-ICP-MS.
Limits of detection were 0.6 mg L−1 for Q-ICP-MS, 0.3 mg
L−1 for SF-ICP-MS and 0.04 mg L−1 for OCD. The main
focus was on comparison of FFF-ICP-MS and FFF-OCD for
quantification of particulate carbon in fresh water samples,
soil extracts as well as in bovine serum albumin (BSA) as
candidate reference standard. Recoveries obtained by
FFF-Q-ICP-MS with a flow-injection calibration approach were
in a range from 90 to $113\%$ for replicate analyses of
fresh water samples compared to FFF-OCD and from 87 to
$107\%$ with an alternative post-channel calibration
strategy.},
cin = {IBG-3},
ddc = {540},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000382071200011},
doi = {10.1039/C6JA00027D},
url = {https://juser.fz-juelich.de/record/820873},
}