2,4-D

HPLC Analysis of Herbicide 2,4-D on Coresep 100 Mixed-Mode Column
Application description

2,4-D or 2,4-dichlorophenoxyacetic acid is phenoxyacetic herbicide used in the treatment of broadleaf weeds. 2,4-D is one of the most widely used herbicides and defoliant. 2,4-D is manufactured from chloroacetic acid and 2,4-dichlorophenol. 2,4-D is often used in combination with dicamba, mecoprop, and MCPA. 2,4-D was analyzed on core-shell mixed-mode column in reversed-phase anion-exclusion modes. Retention time is controlled by the amount of ACN, buffer concentration and buffer pH. The method is suitable for analysis of various herbicides with LC/MS compatible conditions. Core-shell mixed-mode chromatography offers a synergy of unique selectivity of mixed-mode stationary phases and high efficiency of core-shell particles.

Conditions of Experiment
Column: Coresep 100
Separation Modes: reversed-phase and anion-exclusion
Column Dimenstions: 3.0 x 100 mm
Mobile Phase: ACN gradient from 15% to 60%, AmFm pH 3 from 30 mM to 80 mM, in 7 min
Detection: UV 275 nm
Sample: 0.3 mg/ml
Injection: 1 uL
Flow rate: 0.7 mL/min
Analytes
Class of compounds: Aromatic acid, Herbicide, Pesticide
Nature of compounds: Acidic, Hydrophilic, Polar
Compounds: 2,4-D
Baseline HPLC Separation of 22 Acidic, Basic and Neutral Pesticides and Antibiotics on Coresep 100 Mixed-Mode Column
Conditions of Experiment
Column: Coresep 100
Separation Modes: reversed-phase, cation-exchange, anion-exclusion
Column Dimenstions: 3.0 x 100 mm
Mobile Phase: ACN gradient from 15% to 60%, AmFm pH 3 from 30 mM to 80 mM, in 7 min, 3 min hold
Detection: UV 275 nm
Sample: 0.1-0.3 mg/ml
Injection: 1 uL
Flow rate: 0.7 mL/min
Analytes
Class of compounds: Amino acid, Antibiotic, Aromatic acid, Aromatic base, Aromatic compound, Drug, Fungicide, Herbicide, Insecticide, Pesticide, Pyridine
Nature of compounds: Acidic, Basic, Hydrophilic, Hydrophobic, Neutral, Polar, Zwitterionic
Compounds: Clopyralid (herbicide), Sulfadiazine, Sulfamethazine, Cefepime (antibiotic), Metribuzin, Bromacil, 2,4-D, MCPA, Thiacloprid (insecticide), 2,4,5-T, Diphenamid, Captan (fungicide), 2,4-DB, Triadimefon, Azinphos Ethyl, Diazinon, Chlorpyrifos Methyl, Phoxim, Teramisol (antibiotic), Benfluralin (herbicide), Dicofol, Hexachlorobenzene
Baseline HPLC Separation of 19 Acidic, Basic and Neutral Pesticides and Antibiotics on Coresep 100 Mixed-Mode Column
Conditions of Experiment
Column: Coresep 100
Separation Modes: reversed-phase, cation-exchange, anion-exclusion
Column Dimenstions: 3.0 x 100 mm
Mobile Phase: ACN gradient from 15% to 60%, AmFm pH 3 from 30 mM to 80 mM, in 7 min, 3 min hold
Detection: UV 275 nm
Sample: 0.1-0.3 mg/ml
Injection: 1 uL
Flow rate: 0.7 mL/min
Analytes
Class of compounds: Amino acid, Antibiotic, Aromatic acid, Aromatic base, Aromatic compound, Drug, Fungicide, Herbicide, Insecticide, Pesticide
Nature of compounds: Acidic, Basic, Hydrophilic, Hydrophobic, Neutral, Polar, Zwitterionic
Compounds: Clopyralid (herbicide), Sulfadiazine, Aniline (herbicide precursor), Cefepime (antibiotic), Metribuzin, Bromacil, 2,4-D, Diphenamid, 2,4,5-T, Captan (fungicide), 2,4-DB, Folpet, Diazinon, Azinphos Ethyl, Chlorpyrifos Methyl, Phoxim, Benfluralin (herbicide), Dicofol, Hexachlorobenzene
HPLC Analysis of Herbicide 2,4-D on Heritage MA Mixed-Mode Column
Conditions of Experiment
Column: Heritage MA
Separation Modes: reversed-phase and anion-exchange
Column Dimenstions: 4.6 x 50 mm
Mobile Phase: 10% ACN with 10 mM AmFm pH 3
Detection: UV 275 nm
Sample: 0.3 mg/ml
Injection: 1 uL
Flow rate: 1 mL/min
Analytes
Class of compounds: Aromatic acid, Herbicide, Pesticide
Nature of compounds: Acidic, Hydrophilic, Polar
Compounds: 2,4-D