5 Phenolic Compounds Separated by LCMS - AppNote
February 25, 2014
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Commercial Rice Extract Analyzed Easily.
Click HERE for Column Ordering Information.
A commercial rice extract was analyzed and peaks were assigned based on retention times and m/z values for the compounds of interest using the Cogent Phenyl Hydride Column . After method validation the developed procedure can be used to evaluate the quality of rice and to develop the best extraction procedure.


Column: Cogent Phenyl Hydride™, 4µm, 1 00Å
Catalog No.: 69020-05P-2
Dimensions: 2.1 x 50 mm
Mobile Phase:
- A: DI Water / 0.1% Formic Acid (v/v)
- B: Acetonitrile / 0.1% Formic Acid (v/v)
Gradient:
Post Time: 3 minutes
Injection vol.: 1µL
Flow rate: 0.4 mL/minute
Detection: ESI – NEG - PerkinElmer Flexar SQ 300 Mass Spectrometer
Samples:
- Figure A: Commercial rice extract was analyzed.
- Figure B: Peak of 3,5-Dimethoxy-4-Hydroxycinnamic Acid in commercial rice extract overlaid with the
- peak for 25 ppm standard.
t 0 : 0.4 minutes
Note: Rice is a staple food in many countries. It contains phenolic compounds which have anticancer, antioxidant, and antimutagenic effects. It is important to analyze rice extracts to confirm the content of the phenolic compounds in rice.

Attachment
No 297 Phenolic Compounds Separated pdf 0.3 Mb Download File
Click HERE for Column Ordering Information.
A commercial rice extract was analyzed and peaks were assigned based on retention times and m/z values for the compounds of interest using the Cogent Phenyl Hydride Column . After method validation the developed procedure can be used to evaluate the quality of rice and to develop the best extraction procedure.


Peaks:
1. 3,4-Hydroxybenzoic Acid
153 m/z [M-H]–
2. Vanillic Acid
167 m/z [M-H]–
3. p-Coumaric Acid
163 m/z [M-H]–
4. Ferulic Acid
193 m/z [M-H]–
5. 3,5-Dimethoxy-4-Hydroxycinnamic Acid
223 m/z [M-H]–
Column: Cogent Phenyl Hydride™, 4µm, 1 00Å
Catalog No.: 69020-05P-2
Dimensions: 2.1 x 50 mm
Mobile Phase:
- A: DI Water / 0.1% Formic Acid (v/v)
- B: Acetonitrile / 0.1% Formic Acid (v/v)
Gradient:
Time (minutes) | %B |
0 | 10 |
5 | 20 |
6 | 20 |
7 | 10 |
Injection vol.: 1µL
Flow rate: 0.4 mL/minute
Detection: ESI – NEG - PerkinElmer Flexar SQ 300 Mass Spectrometer
Samples:
- Figure A: Commercial rice extract was analyzed.
- Figure B: Peak of 3,5-Dimethoxy-4-Hydroxycinnamic Acid in commercial rice extract overlaid with the
- peak for 25 ppm standard.
t 0 : 0.4 minutes
Note: Rice is a staple food in many countries. It contains phenolic compounds which have anticancer, antioxidant, and antimutagenic effects. It is important to analyze rice extracts to confirm the content of the phenolic compounds in rice.
Attachment
No 297 Phenolic Compounds Separated pdf 0.3 Mb Download File