SPF UVA, UVB measurement (Boots Star/PA equivalent)
- Product Code: 253467
In vitro UV spectrophotometric assay for SPF (290-320 nm weighted) and UVA-PF (320-400 nm) via ethanol dilution, sonication, filtration, and transmittance in quartz cuvettes.
Sample Requirement:
Type: semi-solid (sunscreen cream/lotion)
Amount: 2 grams
description Service Overview
In vitro UV spectrophotometric assay for SPF (290-320 nm weighted) and UVA-PF (320-400 nm) via ethanol dilution, sonication, filtration, and transmittance in quartz cuvettes.
Sample Requirement:
Type: semi-solid (sunscreen cream/lotion)
Amount: 2 grams
timeline Service Steps
| Step | Procedure | Expected Result |
|---|---|---|
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1
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50... |
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1000µg/ml concentration of standard solution |
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2
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The... |
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An appropriate concentrations of Retinaldehyde solution within the linearity range. |
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3
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The... |
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The value of the maximum absorbance value and maximum wavelength. |
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4
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The... |
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An appropriate concentration of the tested sample within the linearity range. |
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5
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The... |
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The value of Retinaldehyde content in the sample . |
You will receive a report for the Total Retinaldehyde Content(µg/ml) in unknown sample. fields when we provide this service
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