Microplastic Analysis

 

Microplastics are minute pieces of plastic with diameters ranging from a few micrometers to a couple of millimeters. In recent years, microplastics have become a global marine environmental issue since they may adversely affect coastal and marine ecosystems and potentially harm the health of human beings. Microplastics are classified into primary microplastics and secondary microplastics. Primary microplastics are manufactured as materials for use in scrubs and industrial abrasives and are often made of polyethylene (PE) or polypropylene (PP). Secondary microplastics refer to plastics that have been broken down from larger debris into pieces with a diameter of 5 mm or less due to external factors such as ultraviolet radiation and the types of such plastics are various.

Topic 

Microplastic Analysis

  Samples
 
Microplastics(MPs)
Adherence of a substance
Qualitative Analysis
FTIR

FTIR
100μm or under MPs

FTIR Imaging

Infrared Spectrophotometer
100μm or under MPs

Py-GCMS

Py-GCMS
Pyrolysis-GCMS

Organic compound Analysis

EDX

EDX
Elemental Analysis

Quantitative Analysis
DSC

DSC
Analysis of plastic component ratio

iSpect DIA-10

iSpect DIA-10
MPs images, Number concentration

Applications 

Analysis of  Using FTIR

Figs. 1 show the fishing nets and fishing lines collected at Majorca island in Spain and Texel island in the Netherlands. Figs. 2 show fishing nets obtained at a recycling plant. The results of measurement using FTIR showed that, polyethylene was the main component in many cases, and the other components were polypropylene .

 

polyethylene, polypropylene

Polyethylene,Polypropylene

Results of Measurement Using FTIR of fishing Nets and Fishing Lines Collected on Beaches

Figs. 1
Results of Measurement Using FTIR of Fishing Nets Collected on Beaches

Polyethylene, Polypropylene, Polyamides

Polyethylene, Polypropylene, Polyamides

Polyethylene, Polypropylene, Polyamides

Figs. 2
Results of Measurement Using FTIR of Fishing Nets obtained at a Recycling Plant

 
FTIR

Fourier Transform Infrared Spectrophotometer
(FTIR)

FTIR can qualitatively analyze organic matter and some inorganic matter, so it allows quick determination of the main components of fishing nets.

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Analysis Using Infrared Microscope

This article introduces example analyses of primary and secondary microplastics utilizing an infrared microscope. Secondary microplastics such as that found in oceans and rivers were prepared as a sample and measured. Microplastics dispersed in water were filtered and collected using a polytetrafluoroethylene (PTFE) filter. In order to identify the many microplastics collected on the filter, mapping analysis was performed using infrared transmission microspectroscopy. Fig. 5 shows an optical microscopic image of the microplastics on the filter. Fig. 4 shows typical infrared spectra from the areas in Figs. 3-(a) to (c). The measurements revealed that the microplastics in the sample were polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET).

 

Figs. 3-(a) PE Distribution, Figs. 3-(b) PP Distribution, Figs. 3-(C)PET Distribution

Typical Infrared Spectra
Fig. 4 Typical Infrared Spectra from Areas in Figs. 3-(a) to (c)

Microplastics on the Filter
Fig. 5 Microplastics on the Filter

 
AIM-9000 Infrared Microscope

Infrared Microscope (AIM)

Using an infrared microscope, microplastics collected on a filter paper can be identified and mapping analysis performed. Minute test samples can be measured with good sensitivity, and component analysis can be rapidly performed using an extensive library of standards.

Other Products

FTIR

Pyrolysis gas chromatography mass spectrometry 
(PY-GCMS)

Test samples such as polymer materials and insoluble materials are directly introduced into the instrument and analyzed without time-consuming preprocessing. As applied to microplastics, adhering organic compounds, etc., can be analyzed.

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EDX

Energy Dispersive X-ray Fluorescence Spectroscopy(EDX)

Test samples such as polymer materials and insoluble materials are directly introduced into the instrument and analyzed without time-consuming preprocessing. As applied to microplastics, adhering organic compounds, etc., can be analyzed.

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DSC

Differential Scanning Calorimeter(DSC-60 Plus Series)

The temperature difference between a standard substance and a test sample is measured while applying constant heat. The endothermic reactions and exothermic reactions are measured, which can be used for physical evaluation of polymer materials, metals, etc. When microplastics are measured, the types can be identified and component percentages obtained.

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EDX

Dynamic Particle Image Analysis System(iSpect DIA-10)

This is a powder image analysis system in which images are taken of powders contained in a liquid test sample, and particle size analysis, shape analysis, and number concentration measurements are performed. When measuring liquid test samples that contain microplastics, particles are detected from the images taken, and information such as the number of such particles and their particle size distribution can be obtained in a short period of time.

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For Research Use Only. Not for use in diagnostic procedures.

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