Polyphosphonic Acids for Improving Recovery and Minimizing System Losses

By reducing the non-specific binding of oligonucleotides by using polyanionic acid competitive binding, the problems of low oligonucleotide recovery and large system losses in the prior art are solved, and efficient analyte recovery and system losses are achieved.

CN114787622BActive Publication Date: 2025-03-25WATERS TECHNOLOGY CORP
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Patent Information

Application Number
CN202080083746.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-12-05
Filing Date
2020-12-04
Publication Date
2025-03-25
Estimated Expiration
2040-12-04

AI Technical Summary

Technical Problem

In the prior art, nonspecific binding of oligonucleotides in chromatography systems, sample vials and solid phase extraction devices leads to low recovery rates, large system losses, and difficult to achieve efficient analysis.

Method used

By using polyanionic acids such as etidronic acid and nitris(methylphosphonic acid), nonspecific binding of oligonucleotides to the system surface is reduced in a competitive manner, improving recovery and reducing system losses.

Benefits of technology

It effectively improves the recovery rate of oligonucleotides, reduces the loss of system analytes, and improves the accuracy and reliability of analysis results.

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Abstract

The present technology relates to a method for separating a sample containing oligonucleotides. The method includes injecting polyphosphonic acid at a concentration between about 0.01 M and about 1 M into the sample containing oligonucleotides. The method also includes passing the sample and the polyphosphonic acid through a liquid chromatography column, and separating the oligonucleotides.
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