UV-1100 spectrophotometer method in the "standard test method for drinking water" organic matter comprehensive indicators

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Application of Spectrophotometer Method in Comprehensive Indicators of Organic Matter in Standard Test Method for Drinking Water

Key words: spectrophotometer method; standard test method for drinking water; US analytical instrument; UV-1100; UV-1200

According to the "National Standards of the People's Republic of China GB/T 5750.8-2006 Standard Test Method for Drinking Water Standards for Organic Matter," the spectrophotometric method is widely used for the determination of various organic compounds in water samples. This technique plays a crucial role in analyzing parameters such as 4-aminoaminopyrazine chloroform, methylene blue, diazepine, sulfate, fluoride, and many other reagents involved in the detection process. The method involves measuring the absorbance of light at specific wavelengths, allowing for accurate quantification of substances like nitrate nitrogen, ammonia nitrogen, phenolate, salicylate, and more. Instruments such as the UV-1100 and UV-1200 from US analytical manufacturers are commonly used due to their precision and reliability in such applications. Additionally, the spectrophotometric approach is essential in detecting compounds like formaldehyde, which can be measured using reagents such as AHMT (4-amino-3-hydroxy-5-thio-1,2,4-triazole) or formaldehyde oxime. Other methods include the use of dithizone, diphenylcarbazide, and salicylfluorone, which are effective in determining heavy metals and organic pollutants. This technique is not only vital for environmental monitoring but also critical in ensuring that drinking water meets safety standards. By applying these standardized procedures, laboratories can provide reliable data that supports public health and regulatory compliance.

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