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9 Bioanalytical Studies using LC-MS/MS

Feb 21, 2017 3:23:50 PM / by Dr. Feng Li

 

Over the years, our scientists have been tasked with a variety of complex LC-MS/MS studies. In their research, they worked to produce cost-saving procedures, deliver reproducible results, and employ automation technologies. 

Here is an overview of the Bioanalytical study research presented at scientific conferences over the past four years. Click the links to view the full poster; including analysis, details, and conclusions.

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1.) Prove Microsampling accuracy with LC-MS/MS 

Mouse Pharmacokinetic Study of Ceftriaxone Using Mitra™ Microsampling Devices and LC-MS/MS

In this study, an experiment was designed to compare a serial blood sampling method using Mitra™ microsamplers with parallel blood sampling methods using both Mitra™ microsamplers and venipuncture.

2.) Automate the work of quantifying S1P in Human Plasma using LC-MS/MS

Method Development and Validation for the Quantification of D-erythro-Sphingosine-1-phosphate (S1P) in Human Plasma Using LC-MS/MS

An automation friendly LC-MS/MS method with a calibration range of 10 to 400 ng/mL was developed and validated to support clinical trials using S1P as a biomarker.

3.) Quantify HMF and HMFA in Human Plasma with LC-MS/MS

Method Development and Validation for the Quantitation of HMF and HMFA in Human Plasma Using LC-MS/MS

A method for the quantitation of HMF and one of its major metabolites, 5-hydroxymethyl-2-furoic acid (HMFA), has been developed and validated in commercially available human plasma by Alliance Pharma. 

lc ms ms alliance pharma scientists

4.) Confirm stability with rapid and sensitive LC-MS/MS method

SHORTCUT to CYP Enzyme Activity Monitoring

A rapid and sensitive LC-MS/MS method was validated for cortisol and 6ß-HC analysis
in human urine. Method accuracy, precision, repeatability, selectivity, F/T stability, processed sample stability, bench-top stability, and long term stability have been confirmed.

5.) Evaluate drug-drug interactions during LC-MS/MS clinical studies

Quantification of 4b-Hydroxycholesterol and Cholesterol in Human Plasma Using LC-MS/MS

The plasma concentration ratio of 4b-hydroxycholesterol (4b-HC) to cholesterol has been recognized as a reliable marker for the assessment of Cytochrome P450 (CYP) 3A4 activity. It could be a valuable yet simple and cost effective side-product of a clinical study to evaluate CYP3A4-mediated drug-drug interactions.

6.) Support a Phase I clinical study with an LC-MS/MS method

Method Development and Validation for the Quantitation of ManNAc in Human Plasma Using HILIC LC-MS/MS

The purpose of this study was to develop and validate an LC-MS/MS method for assaying N-acetylmannosamine (ManNAc) in human plasma (K2EDTA) to support a phase I clinical study.

7.) Measure Goserelin in human plasma using LC-MS/MS

A Rapid and Sensitive Method for the Quantification of Goserelin in Human Plasma Using HPLC-MS/MS

The purpose of this study was to develop and validate a rapid and sensitive LC-MS/MS method for measuring Goserelin in human plasma (K2EDTA).

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8.) Determine the quantification of 25-hydroxyvitamin D3 with an LC-MS/MS method

Quantification of 25-hydroxyvitamin D3 in Rat Serum Using Derivatization to Enhance LC-MS/MS Sensitivity

In this study, a sensitive and robust LC-MS/MS method was developed and validated for the determination of 25-OHVD3 in rat serum.

9.) Quantify Mercaptoethanol through LC-MS/MS analysis

Quantification of 2-Mercaptoethanol in Bulk Drug Substance by LC-MS/MS

Here, we report a LC-MS/MS method that utilizes derivatization with picolinic acid to quantitatively analyze residual mercaptoethanol and has been successfully used in biopharmaceutical manufacture.

 

 

 

Topics: lc-ms/ms

Dr. Feng Li

Written by Dr. Feng Li

Feng (Frank) Li, Ph.D., is President of Alliance Pharma; he obtained his Ph.D. degree in Bioanalytical Chemistry jointly from Concordia University and the National Institute of Scientific Research (Canadian Doping Control Center) in Montreal, Canada. Subsequently, Dr. Li did his post-doctoral fellowship at the Biomedical Mass Spectrometry Facility at the Mayo Clinic in Rochester, Minnesota. Furthermore, Dr. Li has an M.Sc. degree in Natural Product Chemistry and a B.S. in Pharmacy. He has held leadership roles in the Department of Drug Discovery Metabolism at Phoenix International Life Sciences, Inc., a major CRO at the time in Montreal, Canada, which was later acquired by MDS Pharma Services; in the Drug Analysis group in the Department of Drug Metabolism and Pharmacokinetics (DMPK) at GlaxoSmithKline; and in the Drug Metabolism group in the Department of Drug Safety and Disposition at Cephalon, Inc. Dr. Li has extensive DMPK experience in discovery and developmental phases of drug development. With more than 20 years in the pharmaceutical biotechnology, and CRO industry, he is well versed in bioanalytical techniques for both qualitative (drug metabolite identification) and quantitative (PK/TK) drug analysis and has published numerous articles in the area of drug metabolite identification and quantitation.

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