MARC details
| 000 -LEADER |
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| fixed length control field |
02303nam a2200241Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625140700.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-11966 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
On-line structure characterization of pyrrolizidine alkaloids in Onosma stellulatum and Emilia coccinea by liquid chromatography-ion-trap mass spectrometry |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of Chromatography A, 1056(1-2), p.91-97, 2004 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
On-line structure characterization of pyrrolizidine alkaloids in two various plant species (Onosma stellulatum W.K., family Boraginaceae and Emilia coccinea Sims., family Compositae)was performed by a newly elaborated RP-HPLC ion trap MS method with atmospheric pressure chemical ionization (APCI)interface. Different PAs (N-oxides, free bases, otonecine alkaloids)isolated were separated on Waters XTerra C18 column using a gradient elution. The combination of a CE-SPE with multiple isolation and fragmentation steps for specific masses in ion trap MS detector enabled fast and sensitive analysis of various types of PAs (N-oxides and free bases). In O. stellulatum, spectra 12 various types of structures (13 differe at alkaloids)have been determined for the first time: leptanthine-N-oxide, lycopsamine-N-oxide, heliospathuline, lycopsamine, trachelanthamine-N-oxide, dihydroechinatine, leptanthine, heliospathuline-N-oxide, 7-acetylintermedine, uplandicine, echimidine and echimidine-N-oxide. In E. coccinea, the following types of PAs were found: platyphylline-N-oxide, platyphylline (three stereoisomers with the same MSn spectrum), ligularidine, neoligularidine, neosenkirkine and also previously reported senkirkine. The method elaborated can be applied in the structural analysis of PAs in newly examined plant materials or food products but further analysis is needed to determine the stereochemistry in details. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
PYRROLIZIDINE ALKALOIDS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
ONOSMA STELLULATUM |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
EMILIA COCCINEA |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Mroczek, T. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Ndjoko, K. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Glowniak, K. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hostettmann, K. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1uShzwyerpxDwhTJ9kHKpxZSGwp_37NSs/view?usp=drivesdk">https://drive.google.com/file/d/1uShzwyerpxDwhTJ9kHKpxZSGwp_37NSs/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
