scholarly journals Qualitative Profile and Quantitative Determination of Flavonoids from Crocus Sativus L. Petals by LC-MS/MS

2008 ◽  
Vol 3 (12) ◽  
pp. 1934578X0800301 ◽  
Author(s):  
Paola Montoro ◽  
Carlo I. G. Tuberoso ◽  
Mariateresa Maldini ◽  
Paolo Cabras ◽  
Cosimo Pizza
Keyword(s):  
Quantitative Determination ◽  
Methanolic Extract ◽  
Waste Product ◽  
Crocus Sativus ◽  
Esi Ms ◽  
Quantitative Studies ◽  
Derivatives Of ◽  
Crocus Sativus L

From the methanolic extract of Crocus sativus petals nine known flavonoids have been isolated and identified, including glycosidic derivatives of quercetin and kaempferol as major compounds (1–2), and their methoxylated and acetylated derivatives. Additionally, LC-ESI-MS qualitative and LC-ESI-MS/MS quantitative studies of the major compounds of the methanolic extract were performed. The high content of glycosylated flavonoids could give value to C. sativus petals, which are a waste product in the production of the spice saffron.

scholarly journals HPLC/PDA/ESI-MS Evaluation of Saffron (Crocus sativus L.) Adulteration

2011 ◽  
Vol 6 (12) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Leonardo Sabatino ◽  
Monica Scordino ◽  
Maria Gargano ◽  
Adalgisa Belligno ◽  
Pasqualino Traulo ◽  
...  
Keyword(s):  
Crocus Sativus ◽  
Spectrometric Method ◽  
Esi Ms ◽  
Unequivocal Identification ◽  
Marker Molecule ◽  
Crocus Sativus L ◽  
Selection Of

The present study evaluated the reliability of the ISO/TS 3632-2 UV-Vis spectrometric method for saffron classification, making experiments on saffron samples to which were added increasing concentrations of common saffron spice adulterants (safflower, marigold and turmeric). The results showed that the ISO/TS 3632-2 method is not able to detect addition of up to 10-20%, w/w, of saffron adulterants. For additions from 20 to 50%, w/w, of the three adulterants, saffron was classified in a wrong category; addition of higher than 50%, w/w, determined variations in the investigated parameters that did not allow identification of the product as “saffron”. In all cases, the method did not permit the recognition of the nature of the adulterant. On the contrary, the specificity of the HPLC/PDA/MS technique allowed the unequivocal identification of adulterant characteristic marker molecules that could be recognized by the values of absorbance and mass. The selection of characteristic ions of each marker molecule has revealed concentrations of up to 5%, w/w, for safflower and marigold and up to 2% for turmeric. In addition, the high dyeing power of turmeric allowed the determination of 2%, w/w, addition using exclusively the HPLC/PDA technique.

Qualitative and quantitative determination of ten iridoids and secoiridoids in Gentiana straminea Maxim. by LC-UV-ESI-MS

2011 ◽  
Vol 66 (1) ◽  
pp. 102-108 ◽  
Author(s):  
Shihu Wei ◽  
Peicheng Zhang ◽  
Xizhi Feng ◽  
Hiroyuki Kodama ◽  
Changyuan Yu ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Qualitative And Quantitative ◽  
Esi Ms

Formation of Pentafluorobenzyl Derivatives for the Identification and Quantitation of Acid and Phenol Pesticide Residues

1973 ◽  
Vol 56 (6) ◽  
pp. 1503-1505 ◽  
Author(s):  
Lauren G Johnson
Keyword(s):  
Quantitative Determination ◽  
Electron Capture ◽  
Pesticide Residues ◽  
Cleanup Procedure ◽  
Derivatives Of

Abstract A procedure is described for the preparation and electron capture GLC determination of pentafluorobenzyl ester and ether derivatives of 2,4-D, p,p′-DDA, 1-naphthol, p-nitrophenol, and sec.-amyl phenols. A column cleanup procedure quantitatively isolates the derivatives from excess reagents and other interferences. The method can be used as an aid in the confirmation of the identity of pesticide residues and for the quantitative determination of extracted residues.

In‐depth analysis of crocetin ester glycosides from dried/processed stigmas of Crocus sativus L. by HPLC‐ESI‐MS n ( n = 2, 3)

2019 ◽  
Vol 30 (3) ◽  
pp. 346-356 ◽  
Author(s):  
Ernst Pittenauer ◽  
Edita Rados ◽  
Anthony Tsarbopoulos ◽  
Günter Allmaier
Keyword(s):  
Crocus Sativus ◽  
Esi Ms ◽  
Depth Analysis ◽  
Crocus Sativus L

scholarly journals Development and Validation of an LC–ESI-MS Method for Quantitative Determination of Aripiprazole in Human Plasma and an Application to Pharmacokinetic Study

2012 ◽  
Vol 50 (10) ◽  
pp. 893-901 ◽  
Author(s):  
Sreedasyam Ravinder ◽  
Akula Tukaram Bapuji ◽  
Khagga Mukkanti ◽  
Datla Rama Raju ◽  
Hamsa Laxmi Venkata Ravikiran ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Human Plasma ◽  
Pharmacokinetic Study ◽  
Esi Ms ◽  
Development And Validation
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