Used to measure Gal-6S enzyme activity in biological samples such as serum, plasma, or cell lysates. Commonly applied in research settings to study lysosomal storage disorders, particularly those involving glycosaminoglycan metabolism. Helps in diagnosing and monitoring diseases like mucopolysaccharidoses by quantifying enzyme levels. Also utilized in clinical laboratories and pharmaceutical development for evaluating enzyme replacement therapies and assessing treatment efficacy. Provides a sensitive and specific method for high-throughput screening in metabolic disease research.