May 2022

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What Does Your Proficiency Testing (PT) Prove? A Look at Inorganic Analyses, Proficiency Tests, and Contamination and Error, Part I

What Does Your Proficiency Testing (PT) Prove? A Look at Inorganic Analyses, Proficiency Tests, and Contamination and Error, Part I

Patricia L. Atkins;Lauren Stainback
May 1st 2022
ArticleColumn: Atomic Perspectives

Proficiency testing (PT) can assess the performance of individuals or laboratories, but it’s important to understand how to do it properly.

abstract image of infrared

The Infrared Spectra of Polymers, VI: Polymers With C-O Bonds

Brian C. Smith
May 1st 2022
ArticleColumn: IR Spectral Interpretation Workshop

An examination of polymers with C-O bonds, focusing on the spectra of polyvinyl alcohol, cellulose, starch, and copolymers.

2022 Review of Spectroscopic Instrumentation

2022 Review of Spectroscopic Instrumentation

Ellen Miseo;Michael S. Bradley
May 1st 2022
ArticleFeature Article

Our annual review of new products for atomic and molecular spectroscopy, including details by category and highlights of overarching trends.

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The Enhancement Effects of Forsythoside E on Serum Albumin Fluorescence Under Simulated Physiological Conditions

Li Dang;Xuemei Li;Sifan Guo;Huizhi Du
May 1st 2022
ArticlePeer-Reviewed Research

This study examines the fluorescence enhancement effects of forsythoside E, one of metabolites of Forsythia suspensa, on human serum albumin (HSA) and bovine serum albumin (BSA) under simulated physiological conditions.

Applications of Raman Spectroscopy in Solvent Distillation and Exchange During Early-Phase Chemical Synthesis

Applications of Raman Spectroscopy in Solvent Distillation and Exchange During Early-Phase Chemical Synthesis

Ravikumar Ramachandran;Mallikarjun Narayanam;Robert Wethman;Karthik Jayaraman;Amol G. Dikundwar;Hemant Bhutani
May 1st 2022
ArticlePeer-Reviewed Research

The case studies presented here successfully demonstrate the use of inline Raman spectroscopic analysis to estimate solvent content during the solvent exchange and distillation operations in the synthesis of active pharmaceutical ingredients.