Spectroscopy E-Books
Ethylenediamine, the preservative specified in EPA Method 300.1, can introduce a chromatographic artifact when analyzing samples containing elevated carbonate concentrations as a result of the formation of ethylenediamine carbamate. This artifact can compromise the ability to measure low levels of bromate in drinking water. The use of ammonia as an alternative preservative was investigated and found to produce improved bromate chromatography under challenging conditions. The improvement was seen on two different stationary phases, demonstrating that the benefit of this alternative preservative is independent of the column chemistry.
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Best of the Week: What You Missed from Pittcon and AAFS
March 14th 2025Top articles published this week include a video interview on the role of near-infrared (NIR) spectroscopy in food and bioanalysis, a recap of an important session at Pittcon, and a dynamic video that summarizes the highlights of the American Academy of Forensic Sciences (AAFS) Conference.
Raman Spectroscopy Aflatoxin Detection Enhances Peanut Safety
March 11th 2025A research team from Jiangsu University has developed a Raman spectroscopy-based method to detect aflatoxin B1 (AFB1) in peanuts with improved accuracy and efficiency. By employing a two-step hybrid strategy integrating backward interval partial least squares (BiPLS) and variable combination population analysis (VCPA), the new model significantly enhances the precision of AFB1 detection, providing a more reliable approach for food safety monitoring.
Advancing NIR and Imaging Spectroscopy in Food and Bioanalysis
March 11th 2025Our full-length interview with Huck covers more than just NIR spectroscopy in food and bio analysis. Spectroscopy sat down with Huck to also discuss current trends going on in spectroscopy, delving into what challenges spectroscopists face today and how they can solve these concerns.