FIELD: analytical chemistry. SUBSTANCE: method involves separation of technical trilane analyzed specimen by HPLC-method. Separation is carried out on column with reversed phase on the basis of polymethacrylate using the following mixture as a mobile phase: methanol-water-phosphoric acid taken at the following ratio - -(68-72): (28-32): (0,1-0,2). EFFECT: improved method of assay.
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