Journal ArticleDOI
Gas‐chromatographische Charakterisierung organischer Verbindungen. Teil 1: Retentionsindices aliphatischer Halogenide, Alkohole, Aldehyde und Ketone
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TLDR
In this article, a simple relation exists between the retention index of a compound on a non-polar stationary phase and its boiling point, which is defined as the ratio of the boiling point of the compound to its retention index.Abstract:
For the characterization of organic substances in gas chromatography a number termed «retention index» is proposed. A simple relation exists between the retention index of a compound on a non-polar stationary phase and its boiling point.read more
Citations
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The Impact of Ozone Treatment on Changes in Biologically Active Substances of Cardamom Seeds
Agnieszka Joanna Brodowska,Krzysztof Śmigielski,Agnieszka Nowak,Katarzyna Brodowska,Rik Catthoor,Agata Czyżowska +5 more
TL;DR: This study shows that extract from cardamom seeds after ozone treatment is characterized by a better radical scavenging activity than the control sample and showed an improved FRAP activity as well.
Journal ArticleDOI
Profile and Content of Residual Alkaloids in Ten Ecotypes of Lupinus mutabilis Sweet after Aqueous Debittering Process
Paola Cortés-Avendaño,Paola Cortés-Avendaño,Marko Tarvainen,Jukka-Pekka Suomela,Patricia Glorio-Paulet,Baoru Yang,Ritva Repo-Carrasco-Valencia +6 more
TL;DR: The aim of this study was to evaluate the profile and residual levels of quinolizidine alkaloids (QA) in (Lupinus mutabilis Sweet) after aqueous debittering process and found that only small amounts of lupanine and sparteine remained in the seeds after the debittered process, and no other alkaloid were identified.
Journal ArticleDOI
Pleurotus species convert monoterpenes to furanoterpenoids through 1,4-endoperoxides
TL;DR: The pathway suggested presents a substantiated biogenetic scheme for the formation of monoterpenoid furans and opens biotechnological access to valuable natural flavour compounds, such as perillene and rosefurane.
Journal ArticleDOI
Use of retention temperatures for the identification of phenols separated on OV-1701 capillary columns using linear temperature-programmed gas chromatography
TL;DR: In this paper, a procedure is described by means of which linear temperature-programmed gas chromatographic (LTPGC) retention data can be predicted from isothermal Kovats retention indices of substituted phenols separated on capillary columns coated with OV-1701 under LTPGC conditions.
Journal ArticleDOI
Changes in the levels of jasmonates and free polyamines induced by Na2SO4 and NaCl in roots and leaves of the halophyte Prosopis strombulifera
Mariana Reginato,Guillermina Abdala,Otto Miersch,Oscar Adolfo Ruiz,Elsa Moschetti,Virginia Luna +5 more
TL;DR: Prosopis strombulifera, a common legume in high-salinity soils of Argentina, is a useful model for elucidation of salt tolerance mechanisms and specific biochemical pathways in halophytes, since its NaCl tolerance exceeds the limit described for most halophytic plants.
References
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Journal ArticleDOI
Gas-liquid partition chromatography: the separation and micro-estimation of volatile fatty acids from formic acid to dodecanoic acid
A. T. James,A. J. P. Martin +1 more
TL;DR: Modifications necessary to the theory of Martin & Synge (1941) to allow for the compressibility of the mobile phase are presented and the application of the gas-liquid partition chromatogram to the separation of volatile fatty acids is described.
Journal ArticleDOI
A new form of chromatogram employing two liquid phases: A theory of chromatography. 2. Application to the micro-determination of the higher monoamino-acids in proteins.
A. J. P. Martin,R. L. M. Synge +1 more
Journal ArticleDOI
Gas-liquid partition chromatography: the separation of volatile aliphatic amines and of the homologues of pyridine.
TL;DR: Analysis of the volatile amines present in Chenopodium vulvaria L. shows the presence of only ammonia and trimethylamine, compared with standard mixture ofmono-, di and tri-methylamines, which indicates a low concentration of ammonia in the plant.
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