Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Petra Gowik"'
Publikováno v:
F1000Research, Vol 12 (2023)
Background: Measurement uncertainty is typically expressed in terms of a symmetric interval y±U, where y denotes the measurement result and U the expanded uncertainty. However, in the case of heteroscedasticity, symmetric uncertainty intervals can b
Externí odkaz:
https://doaj.org/article/0501f9f9d93d4390852b08e4f389439b
Autor:
Kapil Nichani, Steffen Uhlig, Manfred Stoyke, Sabine Kemmlein, Franz Ulberth, Ilka Haase, Maik Döring, Stephan G Walch, Petra Gowik
Publikováno v:
Food Chemistry: X, Vol 17, Iss , Pp 100538- (2023)
Through their suggestive name, non-targeted methods (NTMs) do not aim at a predefined “needle in the haystack.” Instead, they exploit all the constituents of the haystack. This new type of analytical method is increasingly finding applications in
Externí odkaz:
https://doaj.org/article/031e720f24894e01bba92bf35289b49f
Autor:
Kapil Nichani, Steffen Uhlig, Bertrand Colson, Karina Hettwer, Kirsten Simon, Josephine Bönick, Carsten Uhlig, Sabine Kemmlein, Manfred Stoyke, Petra Gowik, Gerd Huschek, Harshadrai M. Rawel
Publikováno v:
Foods, Vol 12, Iss 1, p 141 (2022)
Food fraud, even when not in the news, is ubiquitous and demands the development of innovative strategies to combat it. A new non-targeted method (NTM) for distinguishing spelt and wheat is described, which aids in food fraud detection and authentici
Externí odkaz:
https://doaj.org/article/0c348617d84047d490b0fa4446309870
Autor:
Kapil Nichani, Steffen Uhlig, Manfred Stoyke, Sabine Kemmlein, Franz Ulberth, Ilka Haase, Maik Döring, Stephan G. Walch, Petra Gowik
Through its suggestive name, non-targeted methods (NTMs) do not aim at a predefined "needle in the haystack". Instead, they exploit all the constituents of the haystack. This new form of analytical methods is increasingly finding applications in food
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fbcfe0423d41909de812b1742f37c39
https://doi.org/10.20944/preprints202112.0420.v2
https://doi.org/10.20944/preprints202112.0420.v2
Autor:
Kapil Nichani, Steffen Uhlig, Manfred Stoyke, Sabine Kemmlein, Franz Ulberth, Ilka Haase, Maik Döring, Stephan G Walch, Petra Gowik
Through its suggestive name, non-targeted methods (NTMs) do not aim at a predefined "needle in the haystack". Instead, they exploit all the constituents of the haystack. This new form of analytical methods is increasingly finding applications in food
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27d6f91ccd6d572868120352a0dd7c10
Autor:
Petra Gowik, Steffen Uhlig, Carsten Uhlig, Stefan Wittke, Kirsten Simon, Manfred Stoyke, Bertrand Colson, Karina Hettwer
Publikováno v:
Accreditation and Quality Assurance. 24:271-279
In the light of recent food fraud cases, the issue of food authenticity is receiving increasing attention. New analytical methods and evaluation approaches are currently being proposed. In this framework, the evaluation of mass spectral profiles cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60faf40264dc959b1218a509209a6fc1
https://doi.org/10.1007/s00769-019-01384-w
https://doi.org/10.1007/s00769-019-01384-w
Non-targeted methods (NTMs) are being increasingly developed and adopted to detect food fraud and identify the authenticity of the food. Method validation is a critical step before bringing the NTMs to the routine to be assured of method performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dab13c170b29046fcb8d8b1236b50e34
https://doi.org/10.1101/2021.01.19.427235
https://doi.org/10.1101/2021.01.19.427235
Autor:
Kirsten Simon, Manfred Stoyke, Karina Hettwer, Petra Gowik, Kapil Nichani, Bertrand Colson, Harshadrai M. Rawel, Josephine Bönick, Carsten Uhlig, Steffen Uhlig, Gerd Huschek
Detection of food fraud and geographical traceability of ingredients is a continually sought goal for government institutions, producers, and consumers. Herein we explore the use of non-target high-resolution mass spectrometry approaches and demonstr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d9be1d42072249e8818b8455c905c78
Publikováno v:
Accreditation and Quality Assurance. 24:25-32
According to ISO/IEC 17025:2017, testing and calibration laboratories should apply procedures for estimating measurement uncertainty. It would thus make sense to include these uncertainty estimates in the evaluation of laboratory performance in profi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ef0d77b94359780aefc6cd60cbc25b8
https://doi.org/10.1007/s00769-018-1332-x
https://doi.org/10.1007/s00769-018-1332-x
Autor:
Steffen Uhlig, Petra Gowik
Publikováno v:
Journal of Consumer Protection and Food Safety. 13:315-322
In case that fewer laboratories are available than required in order to ensure reliable precision estimates, the method validation study approach that is put forward in ISO 5725-2 is not applicable. Nested designs (as described in ISO 5725-3) can rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::684e4349d3d8ec4894827dedcd19b0cd
https://doi.org/10.1007/s00003-018-1157-x
https://doi.org/10.1007/s00003-018-1157-x