Methylparaben

Methylparaben C8H8O3

Methylparaben
 Methylparaben
Select Applications HPLC Analysis of Eleven Compounds on Reversed-Phase Aromatic Phases. Relative Selectivity HPLC Analysis of Eleven Compounds on Amaze C18 SPF Column. Effect of Acetonitrile HPLC Analysis of Seven Aromatic Compounds on Reversed-Phase Aromatic Stationary Phases. Relative Selectivity HPLC Analysis of Seven Aromatic Compounds on Amaze C18 Reversed-Phase Column Comparison of Amaze Reversed Phase Aromatic Phases. Relative Selectivity And Peak Shape HPLC Analysis of 6 Aromatic Acids and Alcohols on Amaze Aromatic Stationary Phases HPLC Analysis of Parabens on Heritage MA Mixed-Mode Column HPLC Analysis of Parabens on Amaze TR Mixed-Mode Column
HPLC Analysis of Eleven Compounds on Reversed-Phase Aromatic Phases. Relative Selectivity
HPLC Analysis of Eleven Compounds on Reversed-Phase Aromatic Phases. Relative Selectivity
Amaze C18 PURCHASE LEARN ABOUT Amaze C18
Conditions of Experiment
Column: Amaze C18
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: ACN/Water/Ammonium phosphate/phosphoric acid
Detection: 215 nm
Sample: 0.2-0.4 mg/ml
Injection: 1 uL
Flow rate: 1 ml/min
Analytes
Class of compounds: Antibiotic, Aromatic base, Aromatic compound, Drug, Organic compound, Organic solvent, Preservative
Nature of compounds: Basic, Hydrophilic, Hydrophobic, Neutral, Polar, Zwitterionic
Compounds: Ciprofloxacin, Pefloxacin, Propranolol, Diphenhydramine, Methylparaben, Dimethyl phthalate, Amitriptyline, Ethylparaben, Toluene, Sertraline, Propylparaben
HPLC Analysis of Eleven Compounds on Amaze C18 SPF Column. Effect of Acetonitrile
HPLC Analysis of Eleven Compounds on Amaze C18 SPF Column. Effect of Acetonitrile
Amaze C18 PURCHASE LEARN ABOUT Amaze C18
Conditions of Experiment
Column: Amaze C18
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: ACN/Water/Ammonium phosphate/phosphoric acid
Detection: 215 nm
Sample: 0.2-0.4 mg/ml
Injection: 1 uL
Flow rate: 1 ml/min
Analytes
Class of compounds: Antibiotic, Aromatic base, Aromatic compound, Drug, Organic compound, Organic solvent, Preservative
Nature of compounds: Basic, Hydrophilic, Hydrophobic, Neutral, Polar, Zwitterionic
Compounds: Ciprofloxacin, Pefloxacin, Propranolol, Diphenhydramine, Methylparaben, Amitriptyline, Ethylparaben, Dimethyl phthalate, Sertraline, Propylparaben, Toluene
HPLC Analysis of Seven Aromatic Compounds on Reversed-Phase Aromatic Stationary Phases. Relative Selectivity
HPLC Analysis of Seven Aromatic Compounds on Reversed-Phase Aromatic Stationary Phases. Relative Selectivity
Amaze C18 PURCHASE LEARN ABOUT Amaze C18
Conditions of Experiment
Column: Amaze C18
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: ACN/water/Ammonium phosphate
Detection: 220 nm
Sample: 0.3-0.5 mg/ml
Injection: 1 uL
Flow rate: 1 ml/min
Analytes
Class of compounds: Aldehyde, Aromatic acid, Aromatic compound, Organic acid, Organic compound, Preservative
Nature of compounds: Acidic, Hydrophilic, Hydrophobic, Neutral
Compounds: Benzyl alcohol, Phenol, Benzoic acid, Methylparaben, Benzonitrile, Ethylparaben, Propylparaben
HPLC Analysis of Seven Aromatic Compounds on Amaze C18 Reversed-Phase Column
HPLC Analysis of Seven Aromatic Compounds on Amaze C18 Reversed-Phase Column
Amaze C18 PURCHASE LEARN ABOUT Amaze C18
Conditions of Experiment
Column: Amaze C18
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: ACN/water/Ammonium phosphate
Detection: 220 nm
Sample: 0.3-0.5 mg/ml
Injection: 1 uL
Flow rate: 1 ml/min
Analytes
Class of compounds: Aldehyde, Aromatic acid, Aromatic compound, Organic acid, Organic compound, Preservative
Nature of compounds: Acidic, Hydrophilic, Hydrophobic, Neutral
Compounds: Benzyl alcohol, Phenol, Benzoic acid, Methylparaben, Benzonitrile, Ethylparaben, Propylparaben
Comparison of Amaze Reversed Phase Aromatic Phases. Relative Selectivity And Peak Shape
Comparison of Amaze Reversed Phase Aromatic Phases. Relative Selectivity And Peak Shape chromatogram
Amaze C18 PURCHASE LEARN ABOUT Amaze C18
Conditions of Experiment
Column: Amaze C18
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: ACN/Water/Ammonium phosphate/phosphoric acid
Detection: UV 215 nm
Sample: 0.02-0.3 mg/ml
Injection: 3 ul
Flow rate: 1 ml/min
Analytes
Class of compounds: Antibiotic, Aromatic base, Aromatic compound, Drug, Organic compound, Preservative
Nature of compounds: Basic, Hydrophilic, Hydrophobic, Neutral, Polar, Zwitterionic
Compounds: Ciprofloxacin, Pefloxacin, Propranolol, Diphenhydramine, Methylparaben, Amitriptyline, Dimethyl phthalate, Propylparaben, Sertraline
HPLC Analysis of 6 Aromatic Acids and Alcohols on Amaze Aromatic Stationary Phases
Application description

Comparison run on Amaze PFP, Amaze AR, Amaze SPF, and Heritage C20 columns.

HPLC Analysis of 6 Aromatic Acids and Alcohols on Amaze Aromatic Stationary Phases
Amaze SPF PURCHASE LEARN ABOUT Amaze SPF
Conditions of Experiment
Column: Amaze SPF
Separation Modes: reversed-phase, pi-pi
Column Dimenstions: 4.6x150 mm, 5 μm, 100A
Mobile Phase: 35% ACN with 20 mM AmAc pH 4.5
Detection: UV 235 nm
Sample: 1 mg/ml
Injection: 3 μL
Flow rate: 1 ml/min
Analytes
Class of compounds: Amines, Aromatic acid, Aromatic base, Aromatic compound, Organic acid, Organic compound, Preservative
Nature of compounds: Acidic, Basic, Hydrophilic, Hydrophobic, Neutral, Polar
Compounds: 4-Aminophenol, Mandelic acid, 4-Hydroxybenzoic acid, Phenol, Benzoic acid, Methylparaben
HPLC Analysis of Parabens on Heritage MA Mixed-Mode Column
Application description

Parabens are used as preservatives in food, beverages and drug formulations. Methyl, ethyl and propyl esters of 4-hydroxybenzoic acid are used in many formulations, mixtures and compositions as preservatives. Parabens are neutral in nature, and they are retained on Heritage HA mixed-mode column by pure reversed-phase mechanism. The method can be used in the analysis of parabens and other neutral or acidic preservatives by LC-UV and LC-MS. The retention time is controlled by the amount of organic component in the mobile phase. This method is robust and reproducible.

HPLC Analysis of Parabens on Heritage MA Mixed-Mode Column chromatogram
Heritage MA PURCHASE LEARN ABOUT Heritage MA
Conditions of Experiment
Column: Heritage MA
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: 60% ACN with 10 mM Am Ac ph 4
Detection: UV 255 nm
Sample: 0.2 mg/ml
Injection: 3 ul
Flow rate: 1 ml/min
Analytes
Class of compounds: Aromatic compound, Organic compound, Preservative
Nature of compounds: Hydrophobic, Neutral
Compounds: Methylparaben, Ethylparaben, Propylparaben
HPLC Analysis of Parabens on Amaze TR Mixed-Mode Column
Application description

Parabens are used as preservatives in food and drugs. Methyl, ethyl and propyl esters of 4-hydroxybenzoic acid are used in many formulations, mixtures and compositions. Parabens are neutral and hydrophobic in nature, and they are retained on a Heritage HA mixed-mode column by pure reversed-phase mechanism. The method can be used in the analysis of parabens and other neutral or acidic preservatives by LC-UV and LC-MS. The retention time is controlled by the amount of organic component of the mobile phase. This method is robust and reproducible.

HPLC Analysis of Parabens on Amaze TR Mixed-Mode Column chromatogram
Heritage MA PURCHASE LEARN ABOUT Heritage MA
Conditions of Experiment
Column: Heritage MA
Separation Modes: reversed-phase
Column Dimenstions: 4.6x150 mm, 3 um, 100A
Mobile Phase: 60% ACN with 10 mM Am Ac ph 4
Detection: UV 255 nm
Sample: 0.2 mg/ml
Injection: 3 ul
Flow rate: 1 ml/min
Analytes
Class of compounds: Aromatic compound, Organic compound, Preservative
Nature of compounds: Hydrophobic, Neutral
Compounds: Methylparaben, Ethylparaben, Propylparaben