English term
Each word needs thorough attention.
Native in: Russian 
Works in: English to Russian, Russian to English, German to Russian, and 1 more.
250 mL of 0.2 M
Определение методом ВЭЖХ
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pH 6.8 phosphate buffer:
Transfer accurately 250 mL of 0.2 M Monobasic potassium phosphate and 112.0 mL of 0.2 M Sodium hydroxide to a suitable container and dilute to 1000 mL with purified water.
Здесь "250 mL of 0.2 M" = 250 мл раствора одноосновного фосфата калия с концентрацией 0,2 моль?
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Спасибо.
Non-PRO (2): Erzsébet Czopyk, Sofia Gutkin
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Proposed translations
Discussion
Это означает, что на 1 литр раствора приходится 0,2 моля растворенного вещества. В русскоязычной фармацевтике принято записывать как "0,2 М" (с запятой вместо точки и с пробелом между цифрой и М)
В обычном техническом/химическом тексте можно было бы записать 0,2 моль/л, но в фармацевтике свои обозначения