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UV-Vis Spectrophotometer in Diverse Fields
Key words: UV-visible spectrophotometer; US instrumentation; UV-1100; UV-1800
The UV-Vis spectrophotometer is a versatile analytical tool used across various industries, including pharmaceuticals, environmental monitoring, food safety, and more. It plays a crucial role in quality control and research by measuring the absorption of light at specific wavelengths.
**Application in Drug Analysis**
Many countries’ pharmacopoeias require the use of UV-Vis spectrophotometers for drug quality control. These instruments are essential for analyzing substances like vitamins, antibiotics, analgesics, antihypertensives, sedatives, eye drops, sulfonamides, diuretics, gynecological drugs, anti-diarrheal agents, anticancer drugs, and anti-tuberculosis medications. The spectral bandwidth must typically be less than 2 nm to ensure accurate results.
**Petroleum Oil Analysis**
In the petroleum industry, UV-Vis spectrophotometers help monitor oil content in wastewater and surface water. The characteristic absorption peaks at 225 nm and 254 nm are commonly used to determine oil levels. Light oils show minimal UV absorption, while heavier fractions exhibit strong absorption at these wavelengths. This makes the instrument vital for detecting aromatic impurities and ensuring compliance with environmental regulations.
**Environmental Monitoring**
UV-Vis spectrophotometers are widely used to detect harmful substances in air, water, and soil. They can identify pollutants such as lignin, tannins, surfactants, phenols, anilines, and nitrophenols in tap water. In China, many water quality standards rely on this technology to ensure public health and safety.
**Feed Industry**
In the feed sector, the spectrophotometer is used to analyze vitamins (A, C, E, K), organic acids (sorbic acid, benzoic acid), and trace elements like iron, selenium, and copper. It also helps detect residues of antibiotics and other additives in animal feed, ensuring safe and nutritious products.
**Pesticide Residue Detection**
Pesticides and their metabolites pose serious health risks, and UV-Vis spectrophotometers play a key role in detecting them. These instruments are essential for identifying toxic breakdown products that may be more dangerous than the original pesticide. Countries like Japan have established strict maximum residue limits for hundreds of pesticides to protect consumers.
**Aquatic Product Quality Control**
The UV-Vis spectrophotometer is also used to monitor contaminants in seafood, such as benzene, trihalomethanes, polychlorinated biphenyls (PCBs), mercury, and fluorine. Due to bioaccumulation in the food chain, even small amounts of these toxins can become highly concentrated in fish, making detection critical for public health.
In conclusion, the UV-Vis spectrophotometer is an indispensable tool in multiple industries, providing accurate and reliable data for quality control, environmental protection, and safety assessments. Its applications continue to expand as new challenges emerge in science and technology.
Key words: UV-visible spectrophotometer; US instrumentation; UV-1100; UV-1800
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