February 01, 2019
Environmental
This applicate note presents the use of an automated solid-phase extraction (SPE) system to improve the accuracy and precision of semivolatile extractions, in compliance with EPA Method 8270.
February 01, 2019
General
One of the fundamental tenets of chromatography is the interaction between an analyte and stationary phase.
February 01, 2019
Medical/Biological
In this study, a reversed-phase HPLC method was developed for separation of five steroid hormones with partition coefficients ranging from 1.47 (cortisone) to 4.5 (pregnenolone) on a Hamilton PRP-C18 HPLC column.
February 01, 2019
Food & Beverage
This method showed excellent precision and accuracy for the 12 FDA regulated mycotoxins that were evaluated during a validation study that covered a variety of matrices.
February 01, 2019
Food & Beverage
Pickering Laboratories developed an analytical method to comply with all the chromatographic requirements of Commission Regulation (EC) No 152-2009.
February 01, 2019
Pharmaceutical/Drug Discovery
For your highly sensitive UHPLC–MS analyses, how can you reduce noise and additional signals to a minimum?
February 01, 2019
Medical/Biological
Chitosans are analyzed by SEC-MALS to determine molar mass moments and distributions.
February 01, 2019
Polymer
This application note presents calibration plots, RSDs, and MDLs for IEC Method 62321-8 using a CDS Model 6150.
February 01, 2019
Medical/Biological
The purpose of this study is to demonstrate the use of mass spectrometry to characterize the elution profile of a typical IgG1 molecule separation on a TSKgel FcR-IIIA-NPR column, and verify the observations that certain glycan structures impart higher activity to the monoclonal antibody, especially as it relates to the presence of terminal galactose sugars.
February 01, 2019
Medical/Biological
This application note effectively outlines a simple three-step method for the extraction of loperamide and its main metabolite, N-desmethyl loperamide, from blood.
February 01, 2019
Pharmaceutical/Drug Discovery
Here we applied our newly developed UHPLC C18 and C30 columns to oligonucleotide analysis.
February 01, 2019
Pharmaceutical/Drug Discovery
In this application, a simple method to simultaneously analyze various water-soluble vitamins was developed.