Recent Developments in Solid-Phase Extraction for Near and Attenuated Total Reflection Infrared Spectroscopic Analysis

Recent Developments in Solid-Phase Extraction for Near and Attenuated Total Reflection Infrared Spectroscopic Analysis.

A review with more than 100 references on the principles and recent developments in the solid-phase extraction (SPE) prior and for in situ near and attenuated total reflection (ATR) infrared spectroscopic analysis is presented. New materials, chromatographic modalities, experimental setups and configurations are described. Their advantages for fast sample preparation for distinct classes of com...

Characterization of an attenuated total reflection-based sensor for integrated solid-phase extraction and infrared detection.

A novel attenuated total reflection (ATR) sensor, which integrates solid-phase extraction (SPE) and infrared detection, is presented. The flow cell, which enables the on-line coupling with a sequential injection system, is the core of the proposed sensor since it allows the continuous delivery of different solutions through the ATR and also the continuous spectrum acquisition. A SPE sorbent mat...

Attenuated Total Reflection as an in Situ Infrared Spectroscopic Method for Mineral Identification

Investigation of applicability of a mid-infrared spectroscopic method using an attenuated total reflection accessory and a new near-infrared transmission method for determination of faecal fat.

In many laboratories, the titrimetric method of Van de Kamer is used for the analysis of faecal fat content of patients suspected of steatorrhoea. We investigated the applicability of a mid-infrared (MIR) spectroscopic method, using an attenuated total reflection (ATR) accessory, and a new near-infrared (NIR) spectroscopic method. For the NIR method, sealed plastic bags containing the stool sam...

Attenuated total reflection Fourier transform infrared spectra of faceted diamonds.

Attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy has been employed for characterization of faceted diamonds. ATR spectra of round brilliant cut natural diamonds of approximately 0.1 ct were observed with excellent spectral quality. The mirror-flat spectrum of the table facet enables a good contact to the ATR crystal with a minimal applied pressure. The observed AT...