Using Second-Order Data in Chromatographic Analysis
LCGC Europe
The authors discuss zero-, first- and second-order data and describe the advantages of using second-order chromatographic data compared with the more traditional univariate or multivariate calibration. They demonstrate how its use can uncover much more information from chromatograms and spectra.
Common Challenges in Nitrosamine Analysis: An LCGC International Peer Exchange
April 15th 2025A recent roundtable discussion featuring Aloka Srinivasan of Raaha, Mayank Bhanti of the United States Pharmacopeia (USP), and Amber Burch of Purisys discussed the challenges surrounding nitrosamine analysis in pharmaceuticals.
Extracting Estrogenic Hormones Using Rotating Disk and Modified Clays
April 14th 2025University of Caldas and University of Chile researchers extracted estrogenic hormones from wastewater samples using rotating disk sorption extraction. After extraction, the concentrated analytes were measured using liquid chromatography coupled with photodiode array detection (HPLC-PDA).
