Separation of Adenine Nucleotides – AppNote – MicroSolv Technology Corporation

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ARTICLES, APPNOTES, FAQ (9187)
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July 19, 2013
Bill Ciccone

AppNotes ANP/HILIC Methods / AppNotes Cogent UDA / AppNotes Library / AppNotes Metabolites / ARTICLES, APPNOTES, FAQ

Separation of AMP, ADP, ATP with HPLC

The figure shows a separation of three energy nucleotides. All three are baseline separated in order of increasing polarity as is expected when ANP chromatography is used.

It is worth noting that the retention of nucleotides increased as the buffer concentration was increased (data not shown). 16.0mM concentration of the buffer in Solvents A and B was the maximum concentration still compatible with MS detection.

Peaks:
1. AMP – Adenosine 5’-monophosphate
2. ADP – Adenosine 5’-diphosphate
3. ATP – Adenosine 5’-triphosphate

Method Conditions
Column: Cogent UDA™, 4µm, 100Å
Catalog No.: 40031-05P-2
Dimensions: 2.1 x 50mm
Mobile Phase:
—A: DI Water / 16.0mM Ammonium Formate
—B: 90% Acetonitrile / 10% DI Water / 16.0mM Ammonium Formate
Gradient:

Time (minutes)	%B
0	95
0.5	95
10	70
15	30
20	30
20.1	95

Temperature: 25˚C
Post Time: 3 minutes
Injection vol.: 1 μL
Flow rate: 0.4mL / minute
Detection: UV @ 254nm
Sample Preparation: Stock Solution: 1mg / mL solutions in DI Water. Samples were diluted 1:10 into 50% Acetonitrile / 50% DI Water mixture. Before injection, samples were filtered through a 0.45µm Nylon Syringe Filter (MicroSolv Tech Corp.).
t0: 0.7 minutes

Note: The ratio of the Adenine Nucleotides (Adenosine ATP/ADP/AMP) is measured to indicate cell energy status or cell apoptosis/death, or ischemia in a tissue.

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