Spectroscopy Since 1975



Plastic waste is a growing issue and identification of plastic types for separation is key to effective recycling; Raman spectroscopy offers the speed and specificity to help.

This application note describes how Raman microscopy, alone or in combination, can investigate plant cell walls, macrophages and bacteria, and recognise atherosclerosis, differentiate malignant cells and monitor lipid uptake among other capabilities.

Detection of low levels of NH3 in H2O rich gas streams is important in a number of application areas such as Refrigeration, Chemical Industry, Automotive and Energy Production. When analysing NH3 in H2O gas streams the major problem with detection of low levels of NH3 occurs because of the spectral overlap between the m/z 17 of both water and NH3.

The term “grating” or “diffraction grating” often brings to mind a surface relief grating, with ruled lines and a delicate surface. Working in transmission, however, can open up many new options for the optical designer. In this tech note, we consider one special type: volume phase holographic (VPH) gratings. With benefits ranging from superior optical performance and design flexibility to robustness and consistency, VPH gratings are ideal for applications like laser pulse compression, spectroscopy, optical coherence tomography and astronomy.

Advanced analytical methods, such as FT-IR imaging, are required to accurately analyse the composition of powdered beverages.

This note describes the use of a transient absorption spectrometer to measure benzil powder.

Confocal Raman imaging is an ideal method for studying 2D materials. It can be used to discern the orientation of their layers and investigate defects, strain and functionalisation.

A quadrupole mass spectrometer is a convenient and powerful method of measuring and monitoring both the compartment integrity and also the chemical composition of the atmosphere in gloveboxes.

Spinsolve 43 MHz systems can be equipped with a unique temperature control system that allows measurement at elevated temperatures without requiring nitrogen or dry air supply.

Low-field (benchtop) NMR is sufficient to offer the possibility of a method to detect adulteration of Arabica by robusta.

A UAV-based multi-camera system to collect NIR/SWIR data, to prove more robust and better-performing estimators of biomass monitoring.

The spectroscopically resolved version of PGSTE makes it possible to measure the diffusion coefficient of different molecules in a mixture by measuring the diffusion attenuation of the signal of each particular chemical group of each molecular structure.

The use of VOCs as a real-time marker in human breath for physiological events such as lactate threshold, and oxidative stress is a challenge for conventional “off-line” gas analysis equipment, such as GC/MS. The analysis necessitates very fast response, coupled with a wide dynamic range. The HPR-20 TMS Transient mass spectrometer is ideal for this application due to the fast response, wide dynamic range and high sensitivity offered by the PIC detector.

Minimal or no sample preparation and quick data generation allows the deployment of benchtop NMR in QA/QC environments without the need for operation by R&D scientists.

Rigaku Analytical Devices has published a new application report describing the use of handheld 1064 nm Raman analysers for a variety of applications involved in the manufacture and testing of hand sanitiser.

This application note uses Raman spectroscopy to investigate three polymers, polyethylene (PE), polytetrafluoroethylene (PTFE) and nylon-6.

Robust and reliable analytical methods are essential in the food industry to ensure that products are sold free of adulteration and safe for human consumption. Food crime is defined as “serious fraud and related criminality in food supply chains”. This description covers a broad range of activities from theft to document fraud, and Raman spectroscopy can be useful in detecting the adulteration and substitution aspect of food crime. Raman spectroscopy’s unique fingerprint-like spectrum can be used to identify adulterants rapidly and reproducibly.

A new application report from Applied Rigaku Technologies presents a method for the investigation of unknown sample materials by EDXRF for industrial forensics analyses.

Electron Multiplying CCD (EMCCD) cameras can be used to detect very weak signals, which would otherwise be lost within the noise floor of the camera.

The size aggregation of nanoparticles are studied in this application note for the optimisation of SERS for glucose sensing.