🌐EnglishEnglishDeutschFrançaisNederlandsРусский日本語EntityQ2540164· pop 7· linked from 67 articlessample preparationAlso known as working-up, work-uptreatment prior to chemical analysisAvailable in 7 languagesFrançaisDeutschРусскийCzechNederlandsTamilvia Wikidata sitelinks · CC0ConnectionsfiltrationEntitymicroscopeEntityCategoriesAnalytical chemistry