[Areas of applicability of thin-layer chromatography. Practical mass screening; data on intestinal mucosa lesions]

Thin layer chromatography is a useful method for diagnosis of metabolic disorders. The following clinical applications are described in this report: 1. Diagnosis of uncommon aminoacidopathies; 2. Screening of inborn errors of aminoacid metabolism in neonates; 3. Studies of transfer-inbalances of intestinal wall after per os aminoacid loading; 4. Completion of feeding formulas with aminoacids for patients with malabsorption.