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How to detect fluorescent agents

2025-10-11 22:36:29 educate

How to detect fluorescent agents

In recent years, the safety of fluorescent agents has attracted much attention, especially whether excessive amounts of fluorescent agents are contained in products such as clothing, paper towels, and cosmetics that are closely related to daily life, which has become a hot topic among consumers. This article will combine the popular discussions on the Internet in the past 10 days to introduce you to the detection method of fluorescent agents in detail and provide structured data for reference.

1. What is a fluorescent agent?

How to detect fluorescent agents

Fluorescent Brightener is a chemical substance that absorbs ultraviolet rays and reflects blue light. It is often used in whitening products. Although some fluorescent agents are considered safe, excessive exposure may pose potential risks to skin or health.

2. Common detection methods for fluorescent agents

The following are several fluorescent agent detection methods currently widely used:

Detection methodOperation stepsApplicable scenariosAdvantages and Disadvantages
UV lamp detectionPlace the product under UV light (365nm wavelength) to see if it emits lightClothing, paper, cosmeticsQuick and convenient, but not quantitative
Professional instrument testingMeasure using a spectrophotometer or fluorescence spectrophotometerlaboratory environmentPrecise results, high cost
Dissolution test methodDissolve the sample and observe whether the solution glowsliquid or soluble solidThe operation is complicated and requires professional equipment

3. Simple household testing steps (taking the ultraviolet lamp method as an example)

1. Prepare a UV flashlight with a wavelength of 365nm (ordinary money detector lamp can also be used)
2. Illuminate the item to be tested in a dark environment
3. Observe whether obvious blue-white fluorescence appears
4. The stronger the fluorescence, the higher the fluorescent agent content may be.

4. Reference for test results of fluorescent agents of popular products

According to some product testing data that have been hotly discussed on the Internet recently:

Product CategoryNumber of test samplesFluorescent agent contentaverage fluorescence intensity
sanitary napkin3268%medium
baby wipes2512%weak
A4 printing paper18100%strong
White T-shirt4045%Moderately weak

5. Recommendations for safe use of fluorescent agents

1. Choose reputable brand products
2. Avoid direct contact with items that may contain high doses of fluorescent agents
3. It is recommended to wash newly purchased clothes before wearing them.
4. People with sensitive skin should be careful when using cosmetics containing fluorescent agents.
5. Try to choose products without fluorescent agents for infant products.

6. Common misunderstandings about fluorescent agents

Myth 1: All fluorescent agents are toxic
Fact: Only some types of fluorescent agents may be harmful, and only at certain doses

Myth 2: Shining light means danger
Fact: Fluorescence intensity does not directly correspond to toxicity

Myth 3: Natural items do not contain fluorescent agents
Fact: Some natural substances (such as some vitamins) also have fluorescent reactions

7. Recommended by professional testing institutions

If you need accurate testing, you can contact the following organizations:
- National Textile Products Quality Supervision and Inspection Center
- China Inspection and Certification Group
- SGS-CSTC Standards Technical Services Co., Ltd.

Conclusion: Although fluorescent agent detection is simple, the detection results need to be viewed rationally. It is recommended that consumers not only pay attention to product safety, but also understand relevant scientific knowledge to avoid unnecessary panic. The best way to protect your health is to choose formal channels to purchase goods and pay attention to the ingredient labels of the products.

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