Log in
RegisterBioanalysis method of isosorbide mononitrate [Bioanalytics]
Hi,
We have tried to develop a bioanalysis method of isosorbide mononitrate but it has not been successful. When tuning with LC MSMS, the parent ion intensity is e7 while the intensity of the daughter ion is e5. What we have done is with negative ESI at m / z 249.92> 59, with column C18, the mobile phase used is methanol and ammonium acetate.
Our target is 3.5 ng / mL in human plasma but when injection of samples in the solvent (not extracted) the area is not present.
Please help solve our problem. Thanks.
We have tried to develop a bioanalysis method of isosorbide mononitrate but it has not been successful. When tuning with LC MSMS, the parent ion intensity is e7 while the intensity of the daughter ion is e5. What we have done is with negative ESI at m / z 249.92> 59, with column C18, the mobile phase used is methanol and ammonium acetate.
Our target is 3.5 ng / mL in human plasma but when injection of samples in the solvent (not extracted) the area is not present.
Please help solve our problem. Thanks.
Complete thread:
- Bioanalysis method of isosorbide mononitrateSanTo 2019-05-03 04:55 [Bioanalytics]
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Bioanalysis method of isosorbide mononitrate cakhatri 2019-05-28 11:13
- Bioanalysis method of isosorbide mononitrate SanTo 2019-06-17 13:15
- Bioanalysis method of isosorbide mononitrate cakhatri 2019-05-28 11:13
Ing. Helmut Schütz