Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Karl Molt"'
Publikováno v:
Food Chemistry: X, Vol 14, Iss , Pp 100337- (2022)
Honey is the oldest and nowadays widely used natural sweetener for food worldwide. Its composition is associated with its botanical and geographical origin and honey is often mislabeled and has a high potential for food fraud. Thus, quick easy and se
Externí odkaz:
https://doaj.org/article/db6922c83aee40c7b8ef906a0c739de3
Autor:
Wiebke Kaziur-Cegla, Lena Wykowski, Maik.A. Jochmann, Karl Molt, Andreas Bruchmann, Torsten.C. Schmidt
Publikováno v:
Advances in Sample Preparation, Vol 1, Iss , Pp 100002- (2022)
To analyze the volatile organic compounds of olive oils, an automated, robust and sensitive and solventless in-tube extraction dynamic headspace (ITEX-DHS) GC–MS method was developed, optimized and validated. 21 VOCs, typically appearing in olive o
Externí odkaz:
https://doaj.org/article/3fb00b114c004b978892461e5346abea
Publikováno v:
Food chemistry: X. 14
Honey is the oldest and nowadays widely used natural sweetener for food worldwide. Its composition is associated with its botanical and geographical origin and honey is often mislabeled and has a high potential for food fraud. Thus, quick easy and se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ed031f8c48c77c078ce7e9e3acc0624
https://pubmed.ncbi.nlm.nih.gov/35634225
https://pubmed.ncbi.nlm.nih.gov/35634225
Publikováno v:
Rapid Communications in Mass Spectrometry. 30:944-952
RATIONALE In aqueous samples compound-specific stable isotope analysis (CSIA) plays an important role. No direct method (without sample preparation) for stable nitrogen isotope analysis (δ(15) N SIA) of non-volatile compounds is known yet. The devel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82cd20b695d1a836ddd90e13b4a28e2b
https://doi.org/10.1002/rcm.7524
https://doi.org/10.1002/rcm.7524
Publikováno v:
Journal of the AirWaste Management Association (1995). 49(2)
In open-path Fourier Transform Infrared spectroscopy, the generation of a suitable background single-beam spectrum is of major concern. The Shifting Method is a derivative-like approach to correct for the background without the need to actually measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d99e616cbbae3f420aaa0f93f9928f11
https://pubmed.ncbi.nlm.nih.gov/28085654
https://pubmed.ncbi.nlm.nih.gov/28085654
Publikováno v:
Journal of Agricultural and Food Chemistry. 62:3081-3091
An in-tube extraction (ITEX) method for the GC-MS analysis of volatile constituents of alcoholic beverages was developed and applied in the analysis of 46 beers from six varieties, Alt, Helles, Kolsch, Pilsener beer, Schwarzbier, and wheat beer, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e9402cf0d02d5371c72ce91d53740c1
https://doi.org/10.1021/jf405832u
https://doi.org/10.1021/jf405832u
Publikováno v:
International Journal for Ion Mobility Spectrometry. 15:257-264
In Ion Mobility Spectrometry (IMS), the analysis of aqueous samples is impaired by the mandatory removal of water. Before the sample enters the IMS system, the analyte must be extracted from water. For this purpose, the stir bar sorptive extraction (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d567bfdb9634b44249bf238dfd2d357
https://doi.org/10.1007/s12127-012-0097-x
https://doi.org/10.1007/s12127-012-0097-x
Publikováno v:
Chemie in unserer Zeit. 46:26-31
Es wurde die Zusammensetzung eines Sturmglases bestimmt und die Eignung zur Wettervorhersage dieses Instrumentes untersucht. Wahrend der Luftdruck nur einen minimalen Einfluss auf den Zustand des Sturmglases hatte, spielte die Umgebungstemperatur ein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1ba991a095cc5efc9598612fcbc9690
https://doi.org/10.1002/ciuz.201100563
https://doi.org/10.1002/ciuz.201100563
Autor:
Fayaz Kondagula, Karl Molt
Publikováno v:
CLEAN - Soil, Air, Water. 37:955-962
For the purpose of purity control, spectral comparisons are performed by regressing the infrared spectrum of a potentially polluted sample on the reference spectrum of the pure compound. The resulting correlation coefficient, R, is a measure of the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab293dfb1afc2665158993b3c4d5f9f2
https://doi.org/10.1002/clen.200900126
https://doi.org/10.1002/clen.200900126
Publikováno v:
Analytical and Bioanalytical Chemistry. 395:1777-1785
Wafers with varying concentrations of diphenhydramine hydrochloride (DPH-HCl) as active pharmaceutical ingredient (API) were prepared and their near infrared (NIR) and Raman spectra recorded. The purpose of this study was to compare the suitability o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6c1eda9724856743a48675e21a76089
https://doi.org/10.1007/s00216-009-3130-0
https://doi.org/10.1007/s00216-009-3130-0