Researchers Study Loss of Vitamin C in Various Baby Bottles
A group of researchers at the University of Nevada-Reno (Reno, Nevada), led by Dr. Jimi Francis, conducted a study, "Comparative Analysis of Nutrients in Baby Milk Using Varied Milk Delivery Systems." The study measured the level of nutrient loss using HPLC methods during simulated baby bottle feedings and has found that some bottle types resulted in significant loss of ascorbic acid (vitamin C) during a typical 20-min feeding.
A group of researchers at the University of Nevada-Reno (Reno, Nevada), led by Dr. Jimi Francis, conducted a study, "Comparative Analysis of Nutrients in Baby Milk Using Varied Milk Delivery Systems." The study measured the level of nutrient loss using HPLC methods during simulated baby bottle feedings and has found that some bottle types resulted in significant loss of ascorbic acid (vitamin C) during a typical 20-min feeding. The researchers examined human milk as well as two types of infant formula. The milks were delivered through seven different major brand baby bottles with five samples collected from each bottle: baseline, 5 min, 10 min, 15 min, and 20 min. Each sample was analyzed for vitamin C using normal-phase HPLC and each collection was completed in triplicate to ensure the consistency of results. The results suggest that the amount of air within a bottle, bottle design, and the impact on vitamin C levels warrant closer examination.
LCGC’s Year in Review: Highlights in Liquid Chromatography
December 20th 2024This collection of technical articles, interviews, and news pieces delves into the latest innovations in LC methods, including advance in high performance liquid chromatography (HPLC), ultrahigh-pressure liquid chromatography (UHPLC), liquid chromatography–mass spectrometry (LC–MS), and multidimensional LC.
Next Generation Peak Fitting for Separations
December 11th 2024Separation scientists frequently encounter critical pairs that are difficult to separate in a complex mixture. To save time and expensive solvents, an effective alternative to conventional screening protocols or mathematical peak width reduction is called iterative curve fitting.
Mobile Phase Buffers in Liquid Chromatography: A Review of Essential Ideas
December 11th 2024In this installment of "LC Troubleshooting," Dwight Stoll discusses several essential principles related to when and why buffers are important, as well as practical factors, such as commonly used buffering agents, that are recommended for use with different types of detectors.
The Chromatographic Society 2025 Martin and Jubilee Award Winners
December 6th 2024The Chromatographic Society (ChromSoc) has announced the winners of the Martin Medal and the Silver Jubilee Medal for 2025. Professor Bogusław Buszewski of Nicolaus Copernicus University in Torun, Poland, has been awarded the prestigious Martin Medal, and the 2025 Silver Jubilee Medal has been awarded to Elia Psillakis of the Technical University of Crete in Greece.
