HITACHI EEM Systems
EEM Basic ~Measurement system for raw material discrimination and process confirmation~
Measurement system for raw material discrimination and process confirmation
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* Only supported by F-7100/F-7000.
- The model F-7100 fluorescence spectrophotometer is a basic system equipped with an automatic filtering attachment.
- Fluorescence fingerprints can be acquired at about 2 to 3 minutes per sample.
- Multivariate analyses can be calculated to determine whether to accept or reject samples.
- When used with the automatic filtering attachment, the effect of unwanted higher order light can be eliminated.
Application example :
Fluorescence fingerprint of laundry detergent washing and rinsing process
Laundry detergents contain ingredients that fluoresce such as surfactants, various degrading enzymes, and fluorescent brightening agents.
Since proteins, which are a component of stains, also exhibit autofluorescence, the washing state and rinsing effect were confirmed using fluorescence fingerprint.
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Results of fluorescence fingerprint multivariate analysis
(principal component analysis: plot of component 1 and component 2)
EEM Multi ~Automatic Multi-Sample Discrimination System with Microplate~
Automatic Multi-Sample Discrimination System with Microplate
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* Only supported by F-7100/F-7000.
- Handles continuous multi-sample measurement of fluorescence fingerprints using a microplate attachment.
- Multivariate analyses can be performed to determine whether to accept or reject samples.
- When used with the automatic filtering attachment, the effect of unwanted higher order light on the analysis can be eliminated.
- 96 liquid samples can be continuously measured with the microplate, and 18 powder samples can be continuously measured with the powder sample guide.
Application example:Olive oil discriminant analysis
The fluorescence fingerprint of extra virgin olive oil and pure olive oil were measured, and the classification was determined by a multivariate discriminant analysis method. The fluorescence emitted from chlorophyll and from peroxide was ascertained. The discriminating model coefficients were prepared from the four wavelengths with high F values to apply them to unknown samples.
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Measurement results for the known samples are read in, and model coefficients are calculated by the multivariate analysis software.
EEM Direct ~Discrimination System with Inline Optical Fiber~
Discrimination System with Inline Optical Fiber
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(Optical fiber attachment installed*)
* Only supported by F-7100/F-7000.
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- Samples with irregular shapes or large samples can be directly measured without placing the sample into a sample chamber by using an optical fiber.
- A lineup of optical fibers is offered from 2 m to 5 m. Optical fibers are also available for conducting measurements far from the main unit.
- The spot irradiated by excitation light from the optical fiber is approximately 5 mm, so micro regions can be measured.
Application example:Special fluorescent paint identification
Using the optical fiber attachment, discriminant analyses were carried out on fluorescent paint applied to paper.
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By using an optical fiber, samples with irregular shapes or large samples can be directly
measured without placing them into a sample chamber.
Using the dedicated analysis software, multigroup samples can be distinguished.
This is used for classification of raw materials and distinguishing production region, origin,
etc.
* Note: These data are to present examples of measurements and are not a guarantee of performance.
Products supporting this application
Contact us for more details.