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LDIR Chemical Imaging Spectroscopy

Laser Direct Infrared Imaging

Laser Direct Infrared (LDIR) imaging provides a rapid and simplified path to molecular imaging using a quantum cascade laser (QCL) coupled with rapidly scanning optics. The Agilent 8700 LDIR chemical imaging system provides high-quality imaging and spectral data, and is ideally suited to the analysis of microplastics.

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Featured Literature

Characterization of Microplastics in Environmental Samples by Laser Direct Infrared Imaging

The chemical composition of microplastics was identified with the Agilent 8700 Laser Direct Infrared (LDIR) chemical imaging system. Ease-of-use and simplicity of creating a library with the Clarity LDIR instrument control software was also shown.

Rapid, Large Area On-Filter Analysis of Microplastics from Plastic Bottles Using Laser Direct Infrared Imaging

Microplastics derived from polyethylene terephthalate (PET) bottles were analysed on gold-coated membrane filters using LDIR.

Fast, Automated Microplastics Analysis Using Laser Direct Chemical Imaging

Characterizing and quantifying microplastics in water samples from marine environments

Analyzing Microplastics

Using the Agilent 8700 Laser Direct Infrared Imaging system for fast and automated analysis of microplastics in environmental samples

Featured Videos
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Featured News

LDIR Enables Accurate Microplastic Characterization in Infant Formula

Reports of the omnipresence of microplastics have mainly focused on their presence in the environment, but there is a growing interest in investigating the health impacts of microplastics. Many people would assume that infants' exposure to microplastics would be limited. However, infant formula was found to be a possible exposure pathway. In a recent application note, the 8700 LDIR Chemical Imaging System was used to accurately identify and quantify microplastics in infant formula. The study also shows the importance of quality control in microplastics analysis. Read the application note.

Agilent Announces Enhanced 8700 LDIR Chemical Imaging System for Microplastics Analysis

The 8700 LDIR Chemical Imaging System has been further optimized for the analysis of microplastics in environmental samples. This newly improved package includes Clarity 1.5 software – a significant upgrade that advances the speed of analysis, enhances spectral acquisition, transformation, and library matching, and provides automated workflows for direct analysis of microplastics on a filter substrate. Read the press release to learn more.

New Application Note Describes Characterization of Microplastics in Environmental Samples by LDIR and User-Generated Libraries

This study identifies the chemical composition of microplastics derived from various large pieces of plastic collected from the beaches of Sorrento, Victoria, Australia. Chemical identification was achieved using a fully automated particle analysis method for the Agilent 8700 laser direct infrared (LDIR) chemical imaging system. The study also demonstrates the ease-of-use and simplicity of creating a library using the Agilent Clarity LDIR instrument control software.

Featured Training & Events

Sample Preparation for microplastics by LDIR: Best Practice

In this webinar, we will highlight microplastic sample preparation in various matrices and examine best practices for performing accurate on-filter microplastic analysis using the Agilent 8700 LDIR Chemical Imaging System.

Microplastics Analysis Just Got Easier: Analysis Direct On-Filter

Microplastics are fast coming into focus as we are beginning to understand just how far these man-made products have made their way into ecosystems and food chains alike.

Standardized ISO Methodologies for the Assessment of Microplastics: An Update on Key Developments

During this webinar, we will explore the development of these standard methodologies and some of the key challenges faced in their implementation.

Microplastics Analysis Doesn't Need to Be So Hard

Microplastics in the environment are fast coming into focus as we begin to understand just how far these manmade products have made their way into ecosystems and food chains alike. The use of plastics has been growing for decades and now small plastic microbeads are also used in everyday products such as cosmetics, toothpaste, and personal care products. Contamination in our waterways, air and food (such as bottled water) from these microplastics (1 µm to 5 mm in size) is gaining significant public interest due largely to its emergence as an environmental and potential human health threat.

While regulators are trying to understand the extent and toxicity of the problem, researchers and analytical methods bodies are working towards standardized analytical solutions to best characterize these particles in terms of chemical identity, size, shape, and total mass.

Raman spectroscopy and mid-infrared imaging using focal plane array (FPA) systems are the most common techniques for this work. While non-destructive and effective they are slow and cumbersome to use. FPA systems, for example, require multi-hour scan times to generate an image. Large quantities of data, full spectra for every pixel, are collected and frequently as much as 30 gigabytes of data must be analyzed to identify these microplastics. This takes many hours and requires a high level of analytical expertise.

There are however alternatives to these traditional techniques based on Quantum Cascade Laser (QCL) technology, which provides a new approach in chemical imaging. In this webinar, we will explore how new QCL based chemical imaging systems can significantly simplify microplastics analysis through a rapid automated workflow.

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