Laboratory

At Diefei , we strictly adhere to our commitment to product quality. With the help of our ultrasonic cleaner, we can ensure that the test samples can be fully extracted. It plays a significant role in sample pretreatment and has a powerful cleaning ability through high-frequency sound waves, effectively removing dirt.

We generally use this equipment in organic testing. It is used to centrifuge the liquid after the reaction to separate and collect the desired portion. The centrifuge is key to maintaining the integrity of volatile ingredients and ensuring they retain their efficacy in our cosmetics.

This is another commonly used instrument in organic testing. Our rotary evaporator efficiently removes solvents under reduced pressure, which helps to concentrate organic test liquids. Diefei maintains consistency in cosmetic product formulations thanks to this equipment.

At Diefei, we strictly uphold our commitment to product purity. With our Ultrasonic cleaner, we're able to ensure all testing is conducted in a contaminant-free environment. It plays an important role in preparing samples for reactions and has strong cleaning capabilities for removing dirt using high-frequency sound waves.

Our laboratory uses this advanced tool for sample digestion and detailed ingredient analysis. With temperature control and sensors to prevent explosions from strong acids and oxidizing agents, our investment in this costly technology highlights our commitment to precision and safety in testing.

Ultra-pure water is critical for laboratory testing. Diefei has invested heavily in advanced water purification technology, using reverse osmosis and ion exchange to remove particles, organic compounds, and heavy metals, producing contaminant-free secondary and primary water to ensure test integrity.

This advanced Agilent instrument is essential for quantitatively analyzing volatile compounds like methanol, ethanol, glycols, and dichloromethane. Equipped with dual sampling systems and detectors (FID and ECD), it ensures the safety of our products and raw materials.

Our laboratory features constant-temperature drying ovens, vacuum drying ovens, and high-temperature muffle furnaces for drying glassware and moisture testing of samples. They also assess the thermal properties and stability of the materials to ensure our products can withstand everyday use conditions without degradation.

Ensuring consumer safety, we prioritize quantifying heavy metals and trace impurities in cosmetics. Our advanced ICP-MS7800 enables high-precision trace analysis of heavy metals down to ppb levels, efficiently analyzing multiple metals simultaneously in just 1.5 minutes.

Our GC-MS system is used to detect low-boiling volatile substances. It can be applied in various fields, such as environmental protection, textiles, petrochemicals, pharmaceuticals, agriculture, and food safety. It’s versatility explains why it's an integral tool in our laboratory.

This chromatograph ensures the purity of active ingredients in our cosmetics by testing high-molecular-weight substances and separating complex mixtures. Equipped with UV, DAD, and FR detectors, it provides comprehensive qualitative and quantitative analysis of preservatives and colorants.

High microbiological safety standards are a non-negotiable aspect of our product quality assurance. We use this equipment to sterilize reagents and glassware used in microbial testing in the laboratory. Our cosmetics product testing heavily relies on this instrument to keep every product free from contamination.

In routine testing, standard bacterial strains can be used for comparative analysis when encountering suspected bacteria. This freezer is used to preserve these bacterial strains and other biological samples at ultra-low temperatures to ensure the accuracy of test results. It is also vital for the long-term stability of bioactive ingredients in our cosmetic products.