Transcription of METHACRYLIC ACID - METHYL METHACRYLATE …
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METHACRYLIC ACID - METHYL METHACRYLATE …
EUROPEAN PHARMACOPOEIA acid - METHYL METHACRYLATE copolymer (1:1)Particulate matter. Filter g through a tared stainlesssteel sieve (90). Rinse withwater Runtil a clear filtrate isobtained and dry at 100-105 C. The residue weighs notmore than acrylate and METHACRYLIC ( ).Blank ml ofmethanol Radd ml solution. Dissolve 40 mg of the dispersion to beexamined in ml ofmethanol Rand add ml of themobile solution. Dissolve 10 mg ofethyl acrylate Rand10 mg ofmethacrylic acid Rinmethanol R, ml with the same solvent. Dilute ml of this solutionto ml withmethanol Rand add ml of the : size:l= , =4mm; stationary phase:octadecylsilyl silica gel forchromatography R(5 m).Mobile phase:methanol R,phosphate buffer solutionpH R(30:70V/V).Flow : spectrophotometer at 202 :50 suitability: resolution: minimum between the peaks due toethyl acrylate and METHACRYLIC acid in the chromatogramobtained with the reference solution; the chromatogram obtained with the blank solution doesnot show peaks with the same retention times as ethylacrylate or METHACRYLIC : sum of the contents of ethyl acrylate and on evaporation: per cent to per g
Methacrylic acid - methyl methacrylate copolymer (1:2) EUROPEAN PHARMACOPOEIA 6.0 System suitability: — resolution: minimum 2.0 between the peaks due to methyl methacrylate and methacrylic acid in the
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