Quantitative analysis of dicamba residues in raw agricultural commodities with the use of ion-pairing reagents in LC-ESI-MS/MS.
Identifieur interne : 000069 ( Main/Exploration ); précédent : 000068; suivant : 000070Quantitative analysis of dicamba residues in raw agricultural commodities with the use of ion-pairing reagents in LC-ESI-MS/MS.
Auteurs : Hongyue Guo [États-Unis] ; Leah S. Riter [États-Unis] ; Chad E. Wujcik [États-Unis] ; Daniel W. Armstrong [États-Unis]Source :
- Talanta [ 1873-3573 ] ; 2016.
English descriptors
- KwdEn :
- Chromatography, High Pressure Liquid, Citrus sinensis, Dicamba (analysis), Food Contamination (analysis), Fruit (chemistry), Herbicides (analysis), Indicators and Reagents (chemistry), Pesticide Residues (analysis), Pyrrolidines (chemistry), Seeds (chemistry), Soybeans, Spectrometry, Mass, Electrospray Ionization, Tandem Mass Spectrometry, Zea mays.
- MESH :
- chemical , analysis : Dicamba, Herbicides, Pesticide Residues.
- analysis : Food Contamination.
- chemistry : Fruit, Indicators and Reagents, Pyrrolidines, Seeds.
- Chromatography, High Pressure Liquid, Citrus sinensis, Soybeans, Spectrometry, Mass, Electrospray Ionization, Tandem Mass Spectrometry, Zea mays.
Abstract
A sensitive and selective HPLC-MS/MS method was developed for the quantitative analysis of dicamba residues in raw agricultural commodities (RACs). Instead of analysis in the traditionally used negative electrospray ionization (ESI) mode, these anionic compounds were detected in positive ESI with the use of ion-pairing reagents. In this approach, only a small amount (60µM) of a commercially available dicationic ion-pairing reagent was introduced into the post-column sample stream. This method has been validated in six different types of RACs including corn grain, corn stover, cotton seed, soybean, soy forage and orange with satisfactory quantitative accuracy and precision. The limits of quantitation (LOQ) values for these analytes were 1.0 to 3.0µg/kg. The standard curves were linear over the range of the tested concentrations (3.0 to 500µg/kg), with correlation coefficient (r) values≥0.999. Evaluation of ionization effects in RAC matrix extracts using diluent blanks for comparison showed no significant matrix effects were present.
DOI: 10.1016/j.talanta.2015.11.043
PubMed: 26717820
Affiliations:
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Riter</name><affiliation wicri:level="2"><nlm:affiliation>Monsanto Company, St Louis, MO, United States.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Monsanto Company, St Louis, MO</wicri:regionArea><placeName><region type="state">Missouri (État)</region></placeName></affiliation></author><author><name sortKey="Wujcik, Chad E" sort="Wujcik, Chad E" uniqKey="Wujcik C" first="Chad E" last="Wujcik">Chad E. Wujcik</name><affiliation wicri:level="2"><nlm:affiliation>Monsanto Company, St Louis, MO, United States.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Monsanto Company, St Louis, MO</wicri:regionArea><placeName><region type="state">Missouri (État)</region></placeName></affiliation></author><author><name sortKey="Armstrong, Daniel W" sort="Armstrong, Daniel W" uniqKey="Armstrong D" first="Daniel W" last="Armstrong">Daniel W. 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Riter</name><affiliation wicri:level="2"><nlm:affiliation>Monsanto Company, St Louis, MO, United States.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Monsanto Company, St Louis, MO</wicri:regionArea><placeName><region type="state">Missouri (État)</region></placeName></affiliation></author><author><name sortKey="Wujcik, Chad E" sort="Wujcik, Chad E" uniqKey="Wujcik C" first="Chad E" last="Wujcik">Chad E. Wujcik</name><affiliation wicri:level="2"><nlm:affiliation>Monsanto Company, St Louis, MO, United States.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Monsanto Company, St Louis, MO</wicri:regionArea><placeName><region type="state">Missouri (État)</region></placeName></affiliation></author><author><name sortKey="Armstrong, Daniel W" sort="Armstrong, Daniel W" uniqKey="Armstrong D" first="Daniel W" last="Armstrong">Daniel W. Armstrong</name><affiliation wicri:level="2"><nlm:affiliation>University of Texas at Arlington, Arlington, TX, United States.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>University of Texas at Arlington, Arlington, TX</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author></analytic><series><title level="j">Talanta</title><idno type="eISSN">1873-3573</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chromatography, High Pressure Liquid</term><term>Citrus sinensis</term><term>Dicamba (analysis)</term><term>Food Contamination (analysis)</term><term>Fruit (chemistry)</term><term>Herbicides (analysis)</term><term>Indicators and Reagents (chemistry)</term><term>Pesticide Residues (analysis)</term><term>Pyrrolidines (chemistry)</term><term>Seeds (chemistry)</term><term>Soybeans</term><term>Spectrometry, Mass, Electrospray Ionization</term><term>Tandem Mass Spectrometry</term><term>Zea mays</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Dicamba</term><term>Herbicides</term><term>Pesticide Residues</term></keywords><keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Food Contamination</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Fruit</term><term>Indicators and Reagents</term><term>Pyrrolidines</term><term>Seeds</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Chromatography, High Pressure Liquid</term><term>Citrus sinensis</term><term>Soybeans</term><term>Spectrometry, Mass, Electrospray Ionization</term><term>Tandem Mass Spectrometry</term><term>Zea mays</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A sensitive and selective HPLC-MS/MS method was developed for the quantitative analysis of dicamba residues in raw agricultural commodities (RACs). Instead of analysis in the traditionally used negative electrospray ionization (ESI) mode, these anionic compounds were detected in positive ESI with the use of ion-pairing reagents. In this approach, only a small amount (60µM) of a commercially available dicationic ion-pairing reagent was introduced into the post-column sample stream. This method has been validated in six different types of RACs including corn grain, corn stover, cotton seed, soybean, soy forage and orange with satisfactory quantitative accuracy and precision. The limits of quantitation (LOQ) values for these analytes were 1.0 to 3.0µg/kg. The standard curves were linear over the range of the tested concentrations (3.0 to 500µg/kg), with correlation coefficient (r) values≥0.999. Evaluation of ionization effects in RAC matrix extracts using diluent blanks for comparison showed no significant matrix effects were present.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Missouri (État)</li><li>Texas</li></region></list><tree><country name="États-Unis"><region name="Texas"><name sortKey="Guo, Hongyue" sort="Guo, Hongyue" uniqKey="Guo H" first="Hongyue" last="Guo">Hongyue Guo</name></region><name sortKey="Armstrong, Daniel W" sort="Armstrong, Daniel W" uniqKey="Armstrong D" first="Daniel W" last="Armstrong">Daniel W. Armstrong</name><name sortKey="Riter, Leah S" sort="Riter, Leah S" uniqKey="Riter L" first="Leah S" last="Riter">Leah S. Riter</name><name sortKey="Wujcik, Chad E" sort="Wujcik, Chad E" uniqKey="Wujcik C" first="Chad E" last="Wujcik">Chad E. Wujcik</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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