scholarly journals Developments in ICP-MS: electrochemically modulated liquid chromatography for the clean-up of ICP-MS blanks and reduction of matrix effects by flow injection ICP-MS

2008 ◽  
Author(s):  
Cory Thomas Gross
Keyword(s):  
Liquid Chromatography ◽  
Flow Injection ◽  
Matrix Effects ◽  
Icp Ms ◽  
Electrochemically Modulated Liquid Chromatography

scholarly journals Analytical Methods for Quantification and Identification of Intact Glucosinolates in Arabidopsis Roots Using LC-QqQ(LIT)-MS/MS

Metabolites ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 47
Author(s):  
Kourosh Hooshmand ◽  
Inge S. Fomsgaard
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Crude Extract ◽  
Matrix Effects ◽  
Critical Role ◽  
Reversed Phase ◽  
Biologically Active ◽  
Natural Soil ◽  
Chromatography Method ◽  
Arabidopsis Root

Glucosinolates are biologically active secondary metabolites in Brassicaceae plants that play a critical role in positive and negative interactions between plants and root-associated microbial communities. The aim of this study was to develop a reversed-phase liquid chromatography method to quantify and identify intact glucosinolates in the root of Arabidopsis thaliana (Arabidopsis) grown in non-sterile natural soil by using liquid chromatography-hybrid triple quadruple-linear ion trap (LC-QqQ(LIT)) mass spectrometry. The Synergi Fusion C18-based column was found to be effective for sufficient retention and separation of nine intact glucosinolates without the need for time-consuming desulfation or ion-pairing steps. Method validation results showed satisfactory inter-day and intra-day precision for all glucosinolates except for 4-hydroxyglucobrassicin. Good inter-day and intra-day accuracy and recovery results were observed for glucoiberin, gluconapin, glucobrassicin, 4-methoxyglucobrassicin and neoglucobrassicin. However, for 4-hydroxyglucobrassicin, glucoraphanin and glucoerucin corrections to quantification results might be necessary since the recovery and accuracy results were not optimal. Matrix effects were shown to have a negligible effect on the ionization of all target analytes. The established liquid chromatography–tandem mass spectrometry (LC-MS/MS) method was applied to quantify target intact glucosinolates in Arabidopsis root crude extract of four different wild-type accessions where differences in terms of concentration and composition of intact glucosinolates were observed. Employment of sensitive and selective precursor ion survey scan of m/z 97 in combination with the information-dependent acquisition (IDA) of the enhanced product ion (EPI) dependent scan (Prec97-IDA-EPI) using LC-QqQ(LIT) provided high confidence in structural characterization of diverse intact glucosinolate profiles in complex Arabidopsis root crude extract.

An adapted flow injection analysis method of phosphate for estuarine samples avoiding matrix effects

2016 ◽  
Vol 124 ◽  
pp. 416-421 ◽  
Author(s):  
Leire Kortazar ◽  
Sara Alberdi ◽  
Eithne Tynan ◽  
Luis Angel Fernández
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Matrix Effects ◽  
Analysis Method

scholarly journals Matrix effects during laser ablation MC ICP-MS analysis of boron isotopes in tourmaline

2014 ◽  
Vol 29 (5) ◽  
pp. 903 ◽  
Author(s):  
Jitka Míková ◽  
Jan Košler ◽  
Michael Wiedenbeck
Keyword(s):  
Laser Ablation ◽  
Matrix Effects ◽  
Boron Isotopes ◽  
Ms Analysis ◽  
Icp Ms
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