ADC 25

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Brand: ADC

ADC 25, also known as the "ADC 25 Measurement Technique for High Accuracy Extractive Analysis of Total Alkanes, Aromatics, Polar and Total Organic Compounds (TIE)" is a standardized method for determining the concentration of different types of organic compounds in water, specifically alkanes, aromatics, polar compounds, and total organic compounds (TOC). The abbreviation ADC stands for "analysis derolutelyen Chemikali"). The ADC 25 method, first published in 1991, is a modification of the ADC 23 method which originally focused on solely measuring TOC. The ADC 25 method involves solvent extraction of a water sample with n-hexane, back-extraction with water, and additional separation steps using a silica gel column or another similar solid phase to isolate the individual compound classes. The extracted components are then analyzed separately through chromatography or spectroscopic methods to quantify the concentrations.The ADC 25 method is particularly useful for analyzing complex mixtures found in industrial and environmental samples, where it can provide crucial information for understanding the source, behavior, and effects of pollutants. The method has been accredited and adopted by various international and national standardization organizations, including ASTM International, the European Committee for Standardization (CEN), and the German Federal Environment Agency (UBA).