{"first_sentence": {"type": "/type/text", "value": "Als Chromatographie bezeichnet man eine Methode zur Trennung von Substanzen, bei der sich die zu trennenden Molek\u00fcle (oft Makromolek\u00fcle) zwischen einer unbeweglichen (station\u00e4ren) und einer beweglichen (mobilen) Phase verteilen."}, "physical_format": "Hardcover", "weight": "2.3 pounds", "languages": [{"key": "/l/ger"}], "type": {"key": "/type/edition"}, "publishers": ["Springer"], "number_of_pages": 567, "isbn_13": ["9783540670209"], "id": 12812635, "edition_name": "1 edition", "isbn_10": ["3540670203"], "publish_date": "January 1, 1998", "key": "/b/OL9515944M", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "title": "Bioanalytische und biochemische Labormethoden", "contributions": ["Kurt E. Geckeler (Editor)", "Heiner Eckstein (Editor)"], "subjects": ["3528064188", "Science / Chemistry / Analytic"], "physical_dimensions": "9.4 x 6.9 x 1.3 inches", "revision": 1}