Ionization matrix effects in plasma-based ambient mass spectrometry sources

2010 ◽  
Vol 25 (3) ◽  
pp. 345 ◽  
Author(s):  
Jacob T. Shelley ◽  
Gary M. Hieftje
Keyword(s):  
Mass Spectrometry ◽  
Matrix Effects ◽  
Ambient Mass Spectrometry

Online coupling techniques in ambient mass spectrometry

The Analyst ◽  
2016 ◽  
Vol 141 (21) ◽  
pp. 5913-5921 ◽  
Author(s):  
Shuting Xu ◽  
Yiding Zhang ◽  
Linnan Xu ◽  
Yu Bai ◽  
Huwei Liu
Keyword(s):  
Mass Spectrometry ◽  
Salt Tolerance ◽  
Matrix Effects ◽  
Analytical Techniques ◽  
Ambient Mass Spectrometry ◽  
High Salt ◽  
Coupling Techniques ◽  
High Salt Tolerance

Since ambient mass spectrometry (AMS) has been proven to have low matrix effects and high salt tolerance, great efforts have been made for online coupling of several analytical techniques with AMS.

Ambient mass spectrometry for extractionless analyses of plants: Holy Grail, useful tool or hoax?

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
TA van Beek ◽  
Y Shen ◽  
T Verweij ◽  
A Villela ◽  
F Claassen
Keyword(s):  
Mass Spectrometry ◽  
Ambient Mass Spectrometry ◽  
Holy Grail

Applications of ambient mass spectrometry of natural products in the fields of food safety, phytochemistry and forensics

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
TA van Beek ◽  
W Duvivier ◽  
Y Shen ◽  
B Chen ◽  
MWF Nielen
Keyword(s):  
Mass Spectrometry ◽  
Natural Products ◽  
Food Safety ◽  
Ambient Mass Spectrometry

Thermal bursting ionization for ambient mass spectrometry

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2496-2499 ◽  
Author(s):  
Jiying Pei ◽  
Kefu Yu ◽  
Yinghui Wang
Keyword(s):  
Mass Spectrometry ◽  
Ambient Ionization ◽  
Ambient Mass Spectrometry ◽  
Sample Analysis ◽  
Liquid Sample ◽  
Ionization Source ◽  
Complex Liquid

Ambient ionization source, thermal bursting ionization (TBI), was characterized for complex liquid sample analysis with mass spectrometry.

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.

scholarly journals Evaluation of ambient mass spectrometry tools for assessing inherent postharvest pepper quality

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Tyler J. Mason ◽  
Harmonie M. Bettenhausen ◽  
Jacqueline M. Chaparro ◽  
Mark E. Uchanski ◽  
Jessica E. Prenni
Keyword(s):  
Mass Spectrometry ◽  
High Throughput ◽  
High Throughput Screening ◽  
Direct Analysis ◽  
Quality Characteristics ◽  
Ambient Mass Spectrometry ◽  
Postharvest Quality ◽  
Ionization Mass ◽  
Ambient Conditions ◽  
Assess Quality

AbstractHorticulturists are interested in evaluating how cultivar, environment, or production system inputs can affect postharvest quality. Ambient mass spectrometry approaches enable analysis of minimally processed samples under ambient conditions and offer an attractive high-throughput alternative for assessing quality characteristics in plant products. Here, we evaluate direct analysis in real time (DART-MS) mass spectrometry and rapid evaporative ionization-mass spectrometry (REIMS) to assess quality characteristics in various pepper (Capsicum annuum L.) cultivars. DART-MS exhibited the ability to discriminate between pod colors and pungency based on chemical fingerprints, while REIMS could distinguish pepper market class (e.g., bell, lunchbox, and popper). Furthermore, DART-MS analysis resulted in the putative detection of important bioactive compounds in human diet such as vitamin C, p-coumaric acid, and capsaicin. The results of this study demonstrate the potential for these approaches as accessible and reliable tools for high throughput screening of pepper quality.

Monitoring of electrochemical reactions on different electrode configurations by ambient mass spectrometry

2021 ◽  
pp. 116180
Author(s):  
Weixiang Li ◽  
Jianghui Sun ◽  
Yixuan Gao ◽  
Ying Zhang ◽  
Jin Ouyang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ambient Mass Spectrometry ◽  
Electrochemical Reactions
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